Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Anthony Ortegon, MD, is a board-certified pulmonologist, critical care specialist, and sleep medicine physician providing expert care to patients in Dallas, Texas. Since joining Southwest Pulmonary Associates in 2013, Dr. Ortegon has been dedicated to helping individuals manage a wide range of respiratory and sleep-related conditions with compassionate, evidence-based care.
Dr. Ortegon earned his Bachelor of Arts in Biology from Swarthmore College in Pennsylvania and went on to receive his Doctor of Medicine from Temple University in Philadelphia. He completed both his residency in Internal Medicine and his fellowship in Pulmonary and Critical Care Medicine at UT Southwestern Medical School in Dallas, one of the nation’s leading academic medical centers.
He is triple board certified by the American Board of Internal Medicine in Internal Medicine, Pulmonary Medicine and Critical Care Medicine. Dr. Ortegon specializes in the diagnosis and treatment of conditions such as asthma, COPD, interstitial lung disease, pulmonary hypertension, and sleep apnea. Dr. Ortegon has a special interest in the diagnosis of various lung pathologies requiring multiple advanced bronchoscopy procedures, including Ion robotic bronchoscopy. Overall, his clinical approach emphasizes clear communication, individualized care plans, and a strong commitment to improving his patients’ overall health and quality of life.
Known for his thoroughness and approachability, Dr. Ortegon values the long-term relationships he builds with his patients. He is proud to be part of the Southwest Pulmonary Associates team and to serve the Dallas community with integrity and expertise.
Ross Schumacher, MD, is one of the skilled pulmonologists practicing at the Southwest Pulmonary Associates location in Plano, Texas. He is a versatile and compassionate pulmonary physician who joined Southwest Pulmonary Associates in 2023. His medical journey encompasses intensive care expertise and long-term patient relationships.
Dr. Schumacher completed his undergraduate studies at Indiana University in Bloomington, Indiana. He then went on to complete his Doctor of Medicine at the Indiana University School of Medicine in Indianapolis. He completed his fellowship at the University of Alabama at Birmingham (UAB) and his residency at the University of Texas-Southwestern. He earned the Critical Care Fellow of the Year at UAB in 2022 and the House Officer of Excellence at UT Southwestern in 2019.
Dr. Schumacher is board-certified in Internal Medicine, Critical Care Medicine, and Pulmonary Medicine by the American Board of Internal Medicine. He has also been a member of CHEST and the American Thoracic Society (ATS) since 2020. Additionally, Dr. Schumacher is an advanced bronchoscopist with a focus on the robotic sampling of micronodules.
Outside of medicine, Dr. Schumacher finds joy in his family—married to Victoria in 2020, welcomed son Dean Wilder in 2021—and a loyal dog named Hoosier. Dr. Schumacher's interests span from Kurt Vonnegut's literature to Immanuel Kant's philosophy. He's dedicated to evidence-based medicine, writing, and passionately cheering for the Hoosiers and Cowboys sports teams.
To schedule an appointment with Dr. Schumacher and the Southwest Pulmonary Associates team, call the office or request an appointment online today.
Rebecca Doebele, MD, is a board-certified pulmonologist and critical care specialist who has been providing expert respiratory care to patients in Dallas, Texas, since joining Southwest Pulmonary Associates in 2008. Known for her compassionate approach and clinical excellence, Dr. Doebele treats a wide range of pulmonary conditions, including asthma, COPD, interstitial lung disease, and critical illnesses requiring intensive care.
Dr. Doebele earned her Bachelor of Science in Genetics from Texas A&M University in College Station before completing her Doctor of Medicine at the University of Texas Southwestern Medical School in Dallas. She remained at UT Southwestern for her residency in Internal Medicine, then pursued advanced fellowship training in Pulmonary and Critical Care Medicine at the University of Colorado Health Science Center.
Board-certified in both Pulmonary Medicine and Critical Care Medicine by the American Board of Internal Medicine, Dr. Doebele has been repeatedly recognized for her clinical skill and dedication to patient care. She was named a Super Doctors Rising Star in 2012 and has earned the prestigious Texas Super Doctors distinction annually from 2013 to the present. Additionally, she received the “Physician All-Star” award from the nursing and administrative staff at Texas Health Presbyterian Hospital of Dallas, a testament to her leadership and collaboration in the hospital setting. Dr. Doebele has been recognized as one of D Magazine’s best doctors in 2021, 2023, and 2024. She also serves as the ICU Medical Director at Texas Health Dallas.
Outside of medicine, Dr. Doebele enjoys traveling and spending time with her husband and their three children. She is proud to serve the Dallas community and is committed to helping her patients breathe easier and live healthier lives.
Kenney Weinmeister, MD is a highly experienced and board-certified pulmonologist, and critical care specialist who has been serving the community of Dallas, Texas, with distinction since 1993 as a member of Southwest Pulmonary Associates. With decades of clinical expertise and a strong academic foundation, Dr. Weinmeister is committed to delivering personalized, comprehensive care for patients with a range of respiratory and sleep-related conditions.
Dr. Weinmeister earned his Bachelor of Science in Pharmacy from Southwestern Oklahoma State University in Weatherford, Oklahoma, and went on to complete his Doctor of Medicine at the University of Oklahoma College of Medicine. He pursued fellowship training in Pulmonary and Critical Care Medicine at UT Southwestern Medical School in Dallas, one of the country’s premier academic institutions. Further enhancing his expertise in healthcare management, he also earned a Master of Business Administration (MBA) from the University of Texas at Dallas.
Dr. Weinmeister has been the recipient of D Magazine's Best Docs recogniztion several times, most recently in 2025.
He holds board certifications in Pulmonary Medicine, and Critical Care Medicine. His clinical interests include robotics bronchoscopies with early diagnosis and treatment of complex sleep disorders, as well as chronic respiratory illnesses such as asthma, COPD, interstitial lung disease, and respiratory failure.
Dr. Weinmeister is known for his thorough, compassionate approach and his dedication to improving his patients’ long-term health and quality of life. His blend of clinical excellence and leadership continues to make him a trusted resource in pulmonary and sleep medicine across Dallas and beyond.
Munir Hazbun, MD, is a board-certified pulmonologist, critical care specialist, and sleep medicine physician serving patients in Dallas, Texas. He joined Southwest Pulmonary Associates in 2008 and brings a wealth of experience and a patient-centered approach to the diagnosis and treatment of complex respiratory and sleep disorders.
Originally from Santiago, Chile, Dr. Hazbun earned his medical degree from the prestigious Universidad de Chile. He completed his internship at Texas Tech Health Science Center in El Paso and went on to pursue fellowship training at Baylor College of Medicine in Houston, where he specialized in Pulmonary, Critical Care, and Sleep Medicine.
Dr. Hazbun is quadruple board certified by the American Board of Internal Medicine in Pulmonary Medicine, Sleep Medicine, and Internal Medicine. His clinical interests include persistent cough, shortness of breath, lung cancer, sarcoidosis, and complex sleep-related breathing disorders. Known for his thoughtful, comprehensive care, he works closely with each patient to identify the root cause of their symptoms and create personalized treatment plans.
Fluent in both English and Spanish, Dr. Hazbun is committed to serving the diverse needs of the Dallas community. He has been named among D Magazine's Best Doctors and recognized as a Texas Super Doctor from 2010 to 2015 and again in 2025. He has also served as a board member for the local chapter of the American Lung Association.
Outside of medicine, Dr. Hazbun enjoys spending time with his wife, Dr. Pilar Bescos, a family medicine physician, and their two children. His personal interests include biking, pickleball, golf, learning piano, gardening and traveling with his family.
Fellowship, Clinical Cardiac Electrophysiology: University of Chicago, Chicago, Illinois
Fellowship, Cardiology: University of Chicago, Chicago, Illinois
Postdoctoral Research Fellowship, Cardiology: University of Pittsburgh, Pittsburgh, Pennsylvania
Chief Resident, Internal Medicine: University of Pittsburgh Medical Center, McKeesport, Pennsylvania
Residency, Internal Medicine: University of Pittsburgh School of Medicine, McKeesport, Pennsylvania
Internship, Medicine, Surgery, Pediatrics, and Obstetrics and Gynecology: University College Hospital, Ibadan, Nigeria, Africa
Medical School, MD Degree: University of Ibadan, Ibadan, Oyo, Nigeria
National Diploma: Yaba College of Technology, Lagos, Nigeria, Africa, Major: Electrical/Electronic Engineering
HONORS/AWARDS:
Guardian Angel Award – University Medical Center Foundation (2018)
Best Abstract (Fellow) - Department of Medicine, University of Chicago Research Day (2012)
Best Research: Fellow-In-Training Research Day, American College of Cardiology (Illinois Chapter) (2012)
Clinical Cardiology Minority Travel Grant, American Heart Association (AHA) (2011)
Editorial Team Selection: One of the Must-Read Papers in Noninvasive Cardiac Imaging of the Month, ThePreparedMinds.com (2010)
PROFESSIONAL ASSOCIATIONS:
Heart Rhythm Society, 2012 - Present
Heart Rhythm Society, Fellow, 2017 - Present
Heart Rhythm Society, Associate, 2012 - 2017
American College of Cardiology, 2010 - Present
American College of Cardiology, Fellow, 2017 - Present
American College of Cardiology, Associate, 2010 - 2017
PUBLICATIONS/MEDIA:
Articles and Case Reports - Peer Reviewed
Orellana-Barrios M, Sotello Aviles DA, Oyenuga O, Nugent KM. Implantable cardiac defibrillator infections: The emerging importance of Mycobacterium fortuitum. BMJ Case Rep., September 2017. PubMed Central ID Number: 28928258.
Adegunsoye A, Levy M, Oyenuga O. Novel therapeutic strategies for reducing right heart failure associated mortality in fibrotic lung diseases. BioMed Research International 16, 2015.
Onishi T, Onishi T, Marek JJ, Ahmed M, Haberman SC, Oyenuga O, Adelstein E, Schwartzman D, Saba S, Gorcsan J. Mechanistic features associated with improvement in mitral regurgitation after cardiac resynchronization therapy and their relation to long-term patient outcome. Circ Heart Fail, 6(4): 685-93, July 2013. PubMed Central ID Number: 23733917.
Saba S, Marek J, Schwartzman D, Jain S, Adelstein E, White P, Oyenuga O, Onishi T, Soman P, Gorcsan J. Echocardiography-guided left ventricular lead placement for cardiac resynchronization therapy: results of the Speckle Tracking Assisted Resynchronization Therapy for Electrode Region trial. Circ Heart Fail, 6(3): 427-34, May 2013. PubMed Central ID Number: 23476053.
Saba S, Schwartzman D, Jain S, Adelstein E, Marek J, White P, Oyenuga O, Soman P, Gorcsan J. Late breaking clinical trials HRS 2012: A prospective randomized controlled study of Echocardiographic-guided Lead Placement for Cardiac Resynchronization Therapy: Results of the STARTER trial. Heart Rhythm Journal, 9(9): 1581-1582, 2012.
Hara H, Oyenuga O, Tanaka H, Adelstein EC, Onishi T, McNamara DM, Schwartzman D, Saba S, Gorcsan J. The relationship of QRS morphology and mechanical dyssynchrony to long-term outcome following cardiac resynchronization therapy. Eur. Heart J., 33(21): 2680-91, November 2012. PubMed Central ID Number: 22351700.
Oyenuga O, Onishi T, Gorcsan J. A practical approach to imaging dyssynchrony for cardiac resynchronization therapy. Heart Fail Rev, 16(4): 397-410, June 2011. PubMed Central ID Number: 21152974
Gorcsan J, Oyenuga O, Habib PJ, Tanaka H, Adelstein EC, Hara H, McNamara DM, Saba S. Relationship of echocardiographic dyssynchrony to long-term survival after Cardiac Resynchronization Therapy. Circulation, 122(19): 1910-8, November 2010. PubMed Central ID Number: 20975000.
Tanaka H, Nesser H-J, Buck T, Oyenuga O, Jánosi RA, Winter S, Saba S, Gorcsan J. Dyssynchrony by speckle-tracking echocardiography and response to Cardiac Resynchronization Therapy: Results of the Speckle Tracking and Resynchronization (STAR) study. Eur. Heart J., 31(14): 1690-700, July 2010. PubMed Central ID Number: 20530502.
Oyenuga O, Hara H, Tanaka H, Kim H-N, Adelstein EC, Saba S, Gorcsan J. Usefulness of echocardiographic dyssynchrony in patients with borderline QRS duration to assist with selection for Cardiac Resynchronization Therapy. JACC Cardiovasc Imaging, 3(2): 132-40, February 2010. PubMed Central ID Number: 20159638
Odelola A, Oyenuga O, Ibrahim O, Onasanya O. Gestational trophoblastic disease. Dokita, 28(Reproductive Health Edition 2001): 47-51, 2001.
Abstracts - Peer Reviewed
Beaser AD, Cunnane RT, Ewulonu N, Moss JD, Burke MC, Vatterott PJ, Upadhyay GA, Broman MT, Oyenuga O, Green JJ, Ringwala S, Nayak HM. Degree of ICD lead adherence as assessed by intravascular ultrasound predicts difficulty of extraction. Heart Rhythm Journal, 12(5): AB08-05, May 2015.
Sparano DM, Ericson K, Cunnane R, Oyenuga O, Sheth H, Burke M, Moss J, Nayak H. Early re-implantation after infected cardiac implantable electronic device extraction is safe and reduces length of stay. Hearth Rhythm Journal, (11): PO03-49, 2014.
Oyenuga O, Shin JH, Cunnane R, Sparano DM, Sheth H, Nayak HN, Burke M, Moss JD. Prognostic implicaton of tricuspid regurgitation after cardiac resynchronization therapy in preventing progression of heart failure. Hearth Rhythm Journal, (11): PO04-181, 2014.
Cunnane R, Das A, Moss JD, Nayak HM, Oyenuga O, Sheth H, Sparano DM, Burke M. Single chest X-ray versus multi-angled fluoroscopy in identifying structural abnormalities in riata leads. Heart Rhythm Journal, (11): PO06-27, 2014.
Marek J, Saba S, Schwartzman D, Jain S, Adelstein EC, Oyenuga O, Onishi T, Gorcsan J. Echo-Guided Lead Placement benefits patients with QRS durations < 150 ms: Results from STARTER randomized controlled trial. Circulation, (126): A11933, 2012.
Oyenuga O, Onishi T, Onishi T, Haberman SC, Adelstein EC, Saba S, Gorcsan J. Acute reduction in mechanical dyssynchrony by speckle tracking strain after Cardiac Resynchronization Therapy is associated with long term outcome. Circulation, (124): A11337, 2011.
Hara H, Oyenuga O, Adelstein EC, Schwartzman D, Saba S, Gorcsan J. Electrical reverse remodeling associated with improvements in mechanical dyssynchrony and ventricular function after Cardiac Resynchronization Therapy. Circulation, (124): A11865, 2011.
Onishi T, Saha SK, Ludwig D, Onishi T, Oyenuga O, Schelbert EB, Schwartzman D, Gorcsan J. Global circumferential strain from routine cardiac magnetic resonance image analysis using a novel off-line approach: Comparison with echocardiographic strain and left ventricular ejection fraction. Circulation, (124): A11953, 2011.
Hara H, Oyenuga O, Tanaka H, Adelstein EC, McNamara D, Schwartzman D, Saba S, Gorcsan J. Impact of mechanical dyssynchrony on long term outcome in patients with non left bundle branch block after Cardiac Resynchronization Therapy. Circulation, (124): A11834, 2011.
Onishi T, Onishi T, Oyenuga O, Haberman SC, Saba S, Gorcsan J. Mitral regurgitation with mechanical dyssynchrony as a substrate associated with long-term survival after Cardiac Resynchronization Therapy. Circulation, (124): A9973, 2011.
Onishi T, Oyenuga O, Haberman SC, Onishi T, Adelstein EC, Saba S, Gorcsan J. The WISE Score: A new index for predicting outcome after Cardiac Resynchronization Therapy using simple clinical data. Circulation, (124): A11338, 2011.
Onishi T, Haberman SC, Oyenuga O, Onishi T, Tanaka T, Simon M, Champion H, Gorcsan J. Three dimensional speckle tracking strain evaluation of right ventricular mechanics in patients with pulmonary arterial hypertension. Circulation, (124): A11360, 2011.
Oyenuga O, Onishi T, Onishi T, Haberman SC, Saba S, Gorcsan J. Association of radial dyssynchrony assessed by six-segment standard deviation and long term outcome following Cardiac Resynchronization Therapy. J Am Soc of Echocardiolography, (24): B37, May 2011.
Onishi T, Oyenuga O, Haberman SC, Onishi T, Adelstein EC, McNamara DM, Gorcsan J. Associations of gender and degree of ventricular dilatation of long term survival after Cardiac Resynchronization Therapy. J Am Soc Echocardiolography, (24): B38, May 2011.
Haberman SC, Oyenuga O, Adelstein EC, Johnson L, Kim HN, Shroff S, Gorcsan J. The usefulness of a novel automated echocardiographic image analysis program to quantify dyssynchrony and predict long term survival after Cardiac Resynchronization Therapy. J Am Soc of Echocardiolography, (24): B37, May 2011.
Onishi T, Onishi T, Oyenuga O, Haberman SC, McNamara D, Gorcsan III J. Acute reduction in mitral regurgitation after Cardiac Resynchronization Therapy is associated with favorable long term outcome. J Am College of Cardiology, (57): E350, April 2011.
Onishi T, Onishi T, Oyenuga O, Haberman SC, Saba S, Gorcsan III J. Acute reduction in post-systolic shortening velocity is associated with response to Cardiac Resynchronization Therapy. J Am College of Cardiology, (57): E866, April 2011.
Hara H, Oyenuga O, Haberman SC, Adelstein EC, Saba S, Gorcsan III J. Impact of baseline QRS morphology combined with mechanical dyssynchrony on long-term survival after Cardiac Resynchronization Therapy. J Am College of Cardiology, (57): E99, April 2011.
Onishi T, Habib P, Oyenuga O, Haberman SC, Onishi T, Adelstein E, Saba S, Gorcsan J. Impact of left ventricular volumes on survival following Cardiac Resynchronization Therapy in patients with and without ischemic disease. J Am College of Cardiology, (57): E344, April 2011.
Onishi T, Onishi T, Oyenuga O, Haberman SC, Saba S, Gorcsan J. Predictors of improvement in mitral regurgitation in heart failure patients following Cardiac Resynchronization Therapy. J Am Society of Echocardiolography, (24): B39, April 2011.
Oyenuga O, Haberman SC, Onishi T, Onishi T, Adelstein W, Saba S, Gorcsan III J. Which echocardiographic marker of left ventricular response predicts long term survival after resynchronization therapy? J Am College of Cardiology, (57): E102, April 2011.
Oyenuga O, Habib PJ, Bachman T, Severyn D, Simon M, McNamara DM, Kormos R, Gorcsan J. Global circumferential strain predicts left ventricular recovery in heart failure patients on mechanical circulatory support. Circulation, (122): 15965, 2010.
Haberman SC, Habib PJ, Oyenuga O, Tanaka H, Adelstein E, Gorcsan J. Echocardiographic dyssynchrony by tissue doppler, speckle tracking and routine pulsed doppler are additive to predict survival following Cardiac Resynchronization Therapy. Circulation, (122): A12662, November 2010.
Oyenuga O, Habib HJ, Haberman SC, Tanaka H, Adelstein E, Saba S, Gorcsan J. Echocardiographic yu index along with degree of QRS widening predicts survival following Cardiac Resynchronization. Circulation, (122): A13016, November 2010.
Habib PJ, Oyenuga O, Haberman SC, Tanaka H, Adelstein E, Gorcsan J. QRS duration and radial dyssynchrony are associated with survival in patients with ischemic cardiomyopathy undergoing Cardiac Resynchronization Therapy. Circulation, (122): A12345, November 2010.
Habib PJ, Oyenuga O, Haberman SC, Tanaka H, Adelstein E, Onishi T, Gorcsan J. The degree of baseline radial dyssynchrony predicts long-term survival following Cardiac Resynchronization Therapy. Circulation, (122): A12369, November 2010.
Tanaka H, Oyenuga O, Habib P, Saba S, Gorcsan J. Association of short-term improvement in left ventricular torsion by Echocardiographic Speckle-Tracking with long-term outcome after Cardiac Resynchronization Therapy. J Am Soc of Echocardiolography, (23): B15, May 2010.
Habib PJ, Oyenuga O, Tanaka H, Haberman SC, Adelstein E, Gorcsan J. Novel transverse speckle tracking dyssynchrony predicts response to Cardiac Resynchronization Therapy. J Am Society of Echocardiolography, (23): B16, May 2010.
Oyenuga O, Habib P, Tanaka H, Adelstein E, Gorcsan J. Speckle tracking echocardiographic radial strain predicts survival in patients with narrower QRS duration following Cardiac Resynchronization. J Am Soc of Echocardiolography, (23): B15, May 2010.
Tanaka H, Oyenuga O, Habib P, Saba S, Gorcsan J. Three-dimensional speckletracking radial strain predicts ejection fraction response to Cardiac Resynchronization Therapy. J Am Society of Echocardiolography, (23): B17, May 2010.
Tanaka H, Oyenuga O, Habib P, Haberman SC, Saba S, Gorcsan J. Clinical and echocardiographic characteristics of heart failure patients with wide QRS but without mechanical dyssynchrony and their response to Resynchronization Therapy. J Am College of Cardiology, (55): A95.E897, March 2010.
Habib P, Oyenuga O, Tanaka H, Haberman SC, Adelstein EC, Gorcsan J. Echocardiographic dyssynchrony predicts survival following Cardiac Resynchronization Therapy. J Am College of Cardiology, (55): A84.E793, March 2010.
Haberman SC, Adelstein EC, Tanaka H, Oyenuga O, Habib P, Gorcsan J. Gender similarities in survival following Cardiac Resynchronization Therapy despite differences in patient characteristics. J Am College of Cardiology, (55): A4.E35, March 2010.
Tanaka H, Oyenuga O, Habib P, Adelstein EC, Gorcsan J. Multiplane speckle tracking imaging to quantify dyssynchrony and predict long-term outcome after Cardiac Resynchronization Therapy. J Am College of Cardiology, (55): A66.E621, March 2010.
Oyenuga O, Habib P, Tanaka H, Haberman SC, Adelstein EC, Saba S, Gorcsan J. Survival benefit from Cardiac Resynchronization Therapy in patients with borderline QRS duration. J Am College of Cardiology, (55): A3.E26, March 2010.
Tanaka H, Oyenuga O, Habib P, Saba S, Gorcsan J. Three-dimensional radial, circumferential and longitudinal speckle-tracking strain to quantify dyssynchrony. J Am College of Cardiology, (55): A78.E735, March 2010.
Hara H, Tanaka H, Oyenuga O, Kim HN, Schwartzman D, Saba S, Gorcsan J. Differences in dyssynchrony and ejection fraction response to Cardiac Resynchronization Therapy in patients with and without left bundle branch block. J Am Society of Echocardiolography, (22): 577, May 2009.
Hara H, Tanaka H, Oyenuga O, Kim HN, Schwartzman D, Saba S, Gorcsan J. Speckle tracking anteroseptal strain patterns predict response after Cardiac Resynchronization Therapy. J Am Society of Echocardiolography, (22): 581, May 2009.
Hideyuki H, Hidekazu T, Oyenuga O, Han-Na K, Schwartzman D, Gorcsan J. Comparison of dyssynchrony and response to Resynchronization Therapy in patients with intrinsic left bundle branch block to those with chronic right ventricular pacing. J Am College of Cardiology, (53): A135, March 2009.
Hideyuki H, Hidekazu T, Oyenuga O, Han-Na K, Schwartzman D, Gorcsan J. Improvements in repolarization following Cardiac Resynchronization Therapy are associated with ejection fraction response and improvements in mechanical dyssynchrony. J Am College of Cardiology, (53): A126, March 2009.
Hideyuki H, Oyenuga O, Hidekazu T, Han-Na K, Saba S, Gorcsan J. Additive value of interventricular mechanical delay to intraventricular dyssynchrony for predicting response to Cardiac Resynchronization Therapy. Circulation, (118): S_870, October 2008.
Han-Na K, Hideyuki H, Hidekazu T, Oyenuga O, Schwartzman D, Gorcsan J. Comparison of dyssynchrony in heart failure patients with narrow QRS to those with wide QRS: Implications for Resynchronization Therapy. Circulation, (118): S_869-S_870, October 2008.
Hidekazu H, Hideyuki H, Oyenuga O, Han-Na K, Schwartzman D, Gorcsan J. Degree of left ventricular dyssynchrony in heart failure patients is related to QRS width. Circulation, (118): S_780, October 2008.
Oyenuga O, Hideyuki H, Hidekazu T, Han-Na K, Saba S, Gorcsan J. Usefulness of echochardiographic measures of dyssynchrony in patients with borderline QRS duration for selection for Resynchronization Therapy. Circulation, (118): S_870, October 2008.
Onishi T, Onishi T, Oyenuga O, Haberman SC, Saba S, Gorcsan J. Relationship of post-systolic shortening to long-term survival after Cardiac Resynchronization Therapy. Circulation, 2011. (In Press)
Presentations/Exhibits/Productions
Oyenuga O. Electrical problems with the pump. Adavances in Heart Failure Management, Texas Tech University Health Sciences Center, 2018. (Peer Reviewed) Oyenuga O. Case Presentation National Meeting, American College of Cardiology (ACC), 2017.
Oyenuga O. Comparison of Simple Pulsed Doppler Measures of Global Dyssynchony to Predict Ejection Fraction Response to Cardiac Resynchronization Therapy., University of Pittsburgh Medical Center, McKeesport, Pennsylvania, May 2008.
Aligeti Venkata R.; South Harry L.; Hirsh Jeffrey B.; et al. "Aorto-Right Atrial Fistula Following Transseptal Catheterization and Catheter Ablation for Atrial Fibrillation". Journal of Cardiovascular Electrophysiology Vol. 23. Issue 6 Pages 659-661. June 2012.
South, Harry; Bains Jujhar; Hirsh Jeffrey . "Unusual Complication of Pacemaker Implantation/Revision: Secondary Endocarditis Due to Fracture and Embolization of an Introducer Sheath". Catheterization and Cardiovascular Interventions. Vol 79. Issue 2, Page 339 – 343. February 2012.
South, Harry. "Knowledge is Power: Exploring the Knowledge, Attitudes, and Practices of Community Members from Mampong and Axim towards Tuberculosis". National Medical Fellowships, Ghana, West Africa. March 2009 - May 2009.
South, Harry. "A Cardiologist’s Nightmare: Secondary (iatrogenic) Endocarditis Due to a Venous Introducer Sheath". Case Presentation, American College of Physicians, Tennessee Chapter Annual Meeting. September 2010.
Fellowship, Clinical Cardiac Electrophysiology: Louisiana State University Health Sciences Center, New Orleans, LA
Fellowship, Cardiovascular Disease: Louisiana State University Health Sciences Center, New Orleans, LA
Residency, Internal Medicine: University of Arizona College of Medicine, Phoenix, AZ
Medical School, MD Degree: Medical University of South Carolina, Charleston, SC
Undergraduate, BS in Chemical Engineering: University of South Carolina, Columbia, SC
Undergraduate, BS in Chemistry: University of South Carolina, Columbia, SC
Undergraduate, Spanish Language Internship: Universidad de Salamanca, Salamanca, Spain, Spanish Language Internship
PROFESSIONAL ASSOCIATIONS:
American College of Cardiology
American College of Physicians
American Society of Nuclear Cardiology
American Medical Student Association
American Medical Association
HONORS/AWARDS:
Louisiana Chapter ACC FIT Jeopardy: First Place (2020)
Louisiana Chapter ACC FIT Jeopardy: First Place (2019)
Resident Research Academic Excellence Day Banner University Medical Center: First Place (2017)
High Value Competition Award Banner University Medical Center: First Place (2016)
PGY-1 Poster ACP Arizona Chapter Scientific Meeting: First Place (2015)
Medical University of South Carolina: Research Grant Awarded (2014)
University of South Carolina: Dean's List (2002-2007)
PUBLICATIONS:
Shao, Wanda; Drutel, Robert; Weiss, Jessica; Gerkin, Richard; et al. “QTc Prolongation Associated with Psychiatric Medications: A Retrospective Cross-sectional Study of Adult Behavioral Health Inpatients”. J Clin Psychopharmacol. 2019 Jan/Feb;39(1):72-77.
Drutel R.; Payne J.; Glancy L. “Bradycardia in a Man with Hypertension”. American Journal of Cardiology. Oct. 2019.
Jakkoju A.; Drutel R.; Ahmed J.; Cox-Alomar P.; Lelorier P.; Glancy L. “Myocarditis Presenting as Sudden Cardiac Death”. Journal of the Louisiana State Medical Society. 2019.
Kern J.; Drutel R.; Leanhart S.; Bogacz M.; Pacholczyk R. "Reduction of T cell receptor diversity in NOD mice prevents development of type 1 Diabetes but not Sjögren’s syndrome". PLoS One. 2014 Nov 7;9(11).
Drutel, R.; Jain, N.; Helmcke, F. “Chemotherapy Responsive Apical Left Ventricular Metastasis from Renal Cell Carcinoma". (2020, Accepted).
Registered Physician of Vascular Interpretation (RPVI)
Nuclear Cardiology
Echocardiography
Internal Medicine
ECFMG Certification
LANGUAGES:
English
Hindi
Telugu
HOSPITALS:
Medical City McKinney
EDUCATION:
Fellowship, Cardiovascular Disease: Wayne State University/Detroit Medical Center, Detroit, MI
Residency, Internal Medicine: Wayne State University/Detroit Medical Center, Detroit, MI
Medical School, MBBS Degree: Sri Venkat Sai Medical College, Mahaboobnagar, Telangana, India
Undergraduate, Bachelor of Medicine, Bachelor of Surgery: Sri Venkat Sai Medical College, Mahaboobnagar, Telangana, India
PROFESSIONAL ASSOCIATIONS:
American College of Cardiology (ACC)
American Society of Nuclear Medicine (ASNC)
American Society of Echocardiography (ASE)
American College of Physicians (ACP)
Society of Cardiovascular CT (SCCT)
PUBLICATIONS:
Peer Reviewed Journal Articles/ Published Abstracts
Drug Eluting Stents vs. Bare Metal Stents in Octogenarians. [J Am Coll Cardio 2009 53: A1-99]. Authors: Nitin Mahajan, Ashok Kondur, Rajeev Sudhakar, Vikas Veeranna, Ashutosh Niraj, Luis Afonso, Wayne State University, Detroit, MI.
Predictors of Cardiovascular Events Following Percutaneous Coronary Intervention: Role of Non HDL Cholesterol in Risk Stratification in Octogenarians. Poster presentation at SCAI 2009. Authors: Nitin Mahajan, Ashok Kondur, Rajeev Sudhakar, Samrat Bhat, Luis Afonso, Wayne State University, Detroit, MI.
Echocardiography in CAD: Extending Stress Echo Applications Exercise Single Photon Emission Computed Tomography (SPECT) Imaging or Exercise Echocardiography? A Meta-Analysis of Exercise Testing for Diagnosis of High-Risk Coronary Artery Disease. Oral presentation at AHA scientific sessions-Orlando 2010. Authors: Nitin Mahajan, Rajeev Sudhakar, Brian Ference, Joel Ager, Yun Wang, Williams KA, Luis Afonso, Wayne State University, Detroit, MI.
Prognostic Utility of Lipid Parameters in Prediction of New Onset Microalbuminuria in Hypertensive Patients. Poster presented at NLA Scientific sessions in 3/2010. Authors: Palaniappan Manickam, Praveen Guntipalli, Ankit Rathod, Pawan Hari, Rajeev Sudhakar, Vikas Veeranna, Sony Jacob, Luis Afonso, Wayne State University, Detroit, MI.
Derivation and external validation of a simple clinical prediction model for Peripheral Arterial Disease in asymptomatic patients. American College of Cardiology 59th Annual Scientific Session in Atlanta. Authors: Ankit Rathod, Apurva Badheka, Aditya Bharadwaj, Palaniappan Manickam, Rajeev Sudhakar, Tamam Mohamad, Sony Jacob, Luis Afonso, Wayne State Univ, Detroit, MI
Role of Novel Biomarkers in Prediction of New Onset Microalbuminuria and its Impact on Cardiovascular Outcomes in Hypertensive Patients. American College of Cardiology 59th Annual Scientific Session in Atlanta. Authors: Palaniappan Manickam, Ankit Rathod, Rajeev Sudhakar, Pawan Hari, Vikas Veeranna, Apurva Badheka, Sony Jacob, Luis Afonso, Wayne State University, Detroit, MI.
Gender and Ethnic Differences in Cardiovascular Events and Mortality in Patients with Depressive Symptoms. American College of Cardiology 59th Annual Scientific Session in Atlanta. Authors: Pawan Hari, Vikas Veeranna, Rajeev Sudhakar, Palaniappan Manickam, Ashutosh Niraj, Ramanjit Kaur, Sony Jacob, Luis Afonso.
Does the Presence of Microalbuminuria Portend a Worse Outcome in Non-Diabetic Patients with Metabolic Syndrome? American College of Cardiology 59th Annual Scientific Session in Atlanta. Authors: Pawan Hari, Vikas Veeranna, Rajeev Sudhakar, Palaniappan Manickam, Ramanjit Kaur, Jyotiranjan Pradhan, Sony Jacob, Luis Afonso.
Microalbuminuria in non-diabetic patients with metabolic syndrome is a strong predictor of subclinical atherosclerosis: A Multi-Ethnic Perspective. American College of Cardiology 59th Annual Scientific Session in Atlanta. Authors: Pawan Hari, Vikas Veeranna, Palaniappan Manickam, Rajeev Sudhakar, Jyotiranjan Pradhan, Ashutosh Niraj, Sony Jacob, Luis Afonso.
Microalbuminuria in non-diabetic patients with metabolic syndrome is strongly associated with systemic inflammation. American College of Cardiology 59th Annual Scientific Session in Atlanta. Authors: Pawan Hari, Vikas Veeranna, Palaniappan Manickam, Rajeev Sudhakar, Mengistu Simegn, Sandeep Zalawadiya, Sony Jacob, Luis Afonso.
Small Artery Elasticity as a predictor of adverse cardiovascular outcomes in a nationally representative cohort. Publication status± submitted in American College Cardiology 60th scientific sessions in New Orleans, 2011. Authors: Rajeev Sudhakar, Ankit Rathod, Aditya Bharadwaj, Apurva Badheka, Vikas Veeranna, Sony Jacob, Luis Afonso, Wayne State University/Detroit Medical Center, Detroit, MI.
Cocaine Use and All Cause Mortality: Insights from NHANES III. Publication status± submitted in American College Cardiology 60th scientific sessions in New Orleans, 201. Authors: Aditya S. Bharadwaj, Apurva O. Badheka, Ankit Rathod, Rajeev Sudhakar, Vikas Veeranna, Sony Jacob, Luis Afonso, Wayne State University, Detroit, MI.
Insurance Status is an Independent Predictor of All Cause and Cardiovascular Mortality: Insights from NHANES III. Publication status± submitted in American College Cardiology 60th scientific sessions in New Orleans, 2011. Authors: Apurva Badheka, Aditya S. Bharadwaj, Ankit Rathod, Rajeev Sudhakar, Vikas Veeranna, Sony Jacob, Luis Afonso, University of Miami, Miami, FL, Wayne State University/ Detroit Medical Center, Detroit, MI.
Correlation of Anthropometric Measures of Obesity in middle aged adults with Risk Stratification Groups Based on Short-term and Lifetime Risk for Cardiovascular Events. Publication status± submitted in American College Cardiology 60th scientific sessions in New Orleans, 2011. Authors: Aditya S. Bharadwaj, Ankit Rathod, Apurva Badheka, Rajeev Sudhakar, Vikas Veeranna, Hardik Doshi, Sony Jacob, Luis Afonso, Wayne State University, Detroit, MI.
Outcomes after Heart-Lung Transplantation in Patients with Severe Pulmonary Infections prior to Heart-Lung Transplantation. Publication status ± Abstract Accepted in Society of Health care and epidemiology-2011 scientific sessions. Authors: Palaniappan Manickam, Rajeev Sudhakar, Rajesh Krishnamoorthi, Teena Chopra, Dror S, Keith Kaye, Wayne State University, Detroit, MI.
Spectrum of illnesses and outcomes of Hypothermia in patients admitted in Intensive care unit. Publication status± accepted in American Thoracic Society scientific sessions in Denver, 2011. Authors: Rajeev Sudhakar, Charles Jaiyeoba, Anupama Tiwari, Ayman Soubani, Wayne State University/ Detroit Medical Center, Detroit, MI Am J Respir Crit Care Med 183;2011:A4713
Impact of Hepatitis C virus seropositivity in Lung transplantation. Publication status± accepted in American Thoracic Society scientific sessions in Denver,2011. Authors: Palaniappan Manickam, Rajesh Krishnamoorthi, Rajeev Sudhakar, Ankit Rathod, A Muthuswamy, Teena Chopra, Wayne State University, Detroit, MI.
Insulin resistance is Associated with Cardiovascular Events in the Multi-Ethnic Study of Atherosclerosis ± accepted in ATVB scientific sessions in Chicago,2011 Authors: Rajeev Sudhakar, Kashish Goel, Palaniappan Manickam, Vikas Veeranna, Luis Afonso, Wayne State Univ, Detroit, MI
Lack of association between H.pylori seropositivity and the progression of atherosclerosis in healthy adults ± accepted in National Lipid Association scientific sessions in New York, May 2011 Authors: Palaniappan Manickam, Rajeev Sudhakar, Praveen Guntipalli, Rajesh Krishnamoorthi, Ankit Rathod, Luis Afonso Wayne State Univ, Detroit, MI
Favorable Effect of Helicobacter Pylori on Serum Lipid Profile ± accepted in National Lipid Association scientific sessions in New York, May 2011Authors: Palaniappan Manickam, Rajeev Sudhakar, Praveen Guntipalli, Arun Muthuswamy, Rajesh Krishnamoorthi, Ankit Rathod, Luis Afonso Wayne State Univ, Detroit, MI
Effect of Body Mass Index on outcomes in Pediatric heart transplant recipients± Accepted in 6th Congress of International Pediatric Transplant Association for Oral presentation and accepted for Distinguished trainee award. Rajeev Sudhakar, Kashish Goel, Adeeba Khan, Palaniappan Manickam, Pawan Hari, Luis Afonso, Wayne State University/ Detroit Medical Center, Detroit, MI
Cardiovascular Preventive Care In Patients Using Psychotropes: Impact On Primary Care ± Accepted in Epidemiology and Prevention/Nutrition, Physical Activity and Metabolism(EPI/NPAM) 2012 Scientific Sessions (Abstract # 628) Rajeev Sudhakar, Arun Muthusamy, Diane Levine, Wayne State University, Detroit, MI, USA
Nominated for Best Resident Teacher Award by medical students as residents (2002)
Elected UW Alumni Representative for class 2001 - University of Washington School of Medicine (2001)
Klea Bartirakas Award - Western Regional Medical Student Research Forum, Carmel, CA, Best Oral Presentation out of over 400 medical students from all over North America (2000)
Best Oral Research Presentation, National Student Research Forum, Galveston, TX - In Epidemiology and Infectious Diseases for AIDS project in North India (1999)
Elected Medical Student Association (MSA) Class Secretary (1999)
Chief Fellow, Interventional Cardiology: Ascension Saint John Hospital, Detroit, MI
Fellowship, Interventional Cardiology: Ascension Saint John Hospital, Detroit, MI
Chief Fellow, General Cardiology: Ascension Saint John Hospital, Detroit, MI
Fellowship, General Cardiology: Ascension Saint John Hospital, Detroit, MI
Chief Resident, Internal Medicine: Case Western Reserve University/St. Vincent Charity Medical Center, OH
Residency, Internal Medicine: Case Western Reserve University/St. Vincent Charity Medical Center, OH
Residency, Internal Medicine: Damascus University Hospitals/Al-Assad and Al-Mouasat Hospitals, Syria
Medical School, MD Degree: Al-Ba´ath University, Faculty of Medicine, Homs, Syria
PROFESSIONAL ASSOCIATIONS:
Fellow, Society of Cardiovascular Angiography and Interventions (FSCAI)
Fellow, American college of Cardiology (FACC)
PUBLICATIONS:
Alasaad et al.. "Association of Race with Long-term Outcomes in Patients undergoing Popliteal and Infrapopliteal Percutaneous Peripheral Arterial Intervention." Cardiovasc Revasc Med. 2018 Oct 11. pii: S1553-8389(18)30454-8. doi: 10.1016/j.carrev.2018.10.014. https://www.ncbi.nlm.nih.gov/pubmed/30401590
"Cardiogenic Shock Complicating Acute Myocardial Infarction Treated With Percutaneous Coronary Intervention Supported by Impella: Implications of Advanced Age and Refractory Shock on Outcomes" Crit Care Explor. 2021 Jun 11;3(6):e0447. doi: 10.1097/CCE.0000000000000447. eCollection 2021 Jun. https://pubmed.ncbi.nlm.nih.gov/34136823/
Poster Presentations:
Alasaad Mohammad MD, Gordin Justin L. MD, Nagarajan Vijay MD and Tang W. H. Wilson MD. "Correlates of Spirometry to Invasively Measured Pulmonary Arterial Hemodynamics in Advanced Chronic Heart Failure". Poster presented at: 9th Annual Scientific meeting of the Heart Failure Society of America (September 26-29, National Harbor, MD).; National Harbor, MD. (2015).
Mohammad Alasaad MD, Anwar Zaitoun MD, Hussein Othman MD, Suzan Szpunar PhD , Howard S. Rosman MD , Rajendra H. Mehta MD MS , Hiroshi Yamasaki MD. "Association of Race with Long-term Outcomes in Patients undergoing Popliteal and Infra-popliteal Percutaneous Peripheral Arterial Interventions" Poster presented at: AHA American Heart Association (November 13th, Anaheim, CA). (2017).
Fellowship, Interventional Cardiology: Baylor College of Medicine, Houston, TX
Fellowship, Cardiovascular Disease: Baylor College of Medicine, Houston, TX
Residency, Internal Medicine: Baylor College of Medicine, Houston, TX
Medical School, MD Degree: Medical College of Virginia, Virginia Commonwealth, Richmond, Virginia
Graduate School, Masters of Science in Physiology Degree: Medical College of Virginia, Virginia Commonwealth, Richmond, Virginia
Undergraduate, Bachelors of Science in Biology Degree (Departmental Honors): Mary Washington College, Fredericksburg, Virginia
PROCEDURAL SKILLS:
Complex Coronary & Peripheral Interventions
Heart Catheterizations
Percutaneous Support Devices (Impella, IABP)
Venous Reflux Disease & Ablation Therapy
TAVR
PUBLICATIONS/MEDIA:
Publications:
Brown WR, Levine, G. “Chest Pains and Angina”. In Levine, G, Cardiology Secrets (4th , pp. 110-116). Philadelphia, PA: Elsevier Saunders. (2014).
Salloum FN, Abbate A, Houser J, Mudrick C, Roy S, Brown WR, Qureshi I, Prabhakar S and Kukreja R. “Sildenafil (Viagra) Attenuates Ischemic Cardiomyopathy and Improves Left Ventricular Function in Mice”. Am J Physiol Heart Circ Physiol. 2008 Mar;294(3):H1398-406. Epub. Jan 25, 2008.
Majid M, Brown WR, Divakaran V, Virani S. “Pulmonic Valve Endocarditis, A Case Report.” Submitted to Texas Heart Inst Journal.
Divakaran VG, Brown WR, Virani S. “Images in Echocardiography: A Freely Floating Saphenous Vein Graft.” Echocardiography. Vol 26. Aug, 2009.
Brown WR. Assisted Drs. R. Kukreja and F. Salloum in the investigation of PDE-5 inhibitors and their role in cardio protection. “Chronic Inhibition of PDE-5 with Sildenafil (Viagra) Attenuates Ischemic Cardiomyopathy and Improves Left Ventricular Function in Mice”. 2007.
Brown WR. Worked with Dr. T. Duane (Trauma Surgery) in the Medical College of Virginia Emergency Department. This research considered the value of pelvic/cervical spine films, and outcomes in various patient populations, including the obese and the diabetic patient. “The Role and Influence of Plain Films and Patient Demographics on Outcomes in the Trauma Bay." 2006.
Brown WR. Worked with Dr. J. Feher to complete a thesis in physiology research. “Continuous Chemiluminescent Measurement of Superoxide in Intact Rat Hearts During Ischemia-Reperfusion.” 2002-2003.
Brown WR. As a candidate for Biology departmental honors, worked with Dr. K. Loesser to complete a thesis in biological research. In May of 2001, presented research to the Virginia Academy of Science. The work subsequently appeared in the Academy’s publication. “Vitamin E: Efficacy of Gamma-Tocopherol vs. Alpha-Tocopherol in Atherosclerosis Prevention.” 2000-2001.
Poster Presentations:
Oliver PA, Brown WR, Regan C, Stoltzfus J, Ornato JP. “Correlation Between Heart Rate in Pre-Hospital Patients In Atrial Fibrillation With Rapid Ventricular Response And Blood Serum Magnesium Levels”. AAEM meeting, Las Vegas, NV. Feb 2010.
Salloum F, Abbate A, Brown WR, Hoke N, Kukreja RC. “Phosphodiesterase Inhibitors Reduce Myocardial Infarction, Apoptosis and Improve Post Ischemic Ventricular Function in Female Mice”. ACC meeting, Chicago, IL. March, 2008.
Ramon (Ray) Kumar, M.D., is board-certified in cardiovascular disease and interventional cardiology. He specializes in coronary artery disease, peripheral vascular disease, congestive heart failure, palpitations, and valve disease. Dr. Kumar practices at HeartPlace Allen, Texas, where he is committed to providing the highest quality of care to his patients.
Dr. Kumar earned his Doctor of Medicine degree at UT Southwestern in Dallas, Texas. He completed his residency in internal medicine at Harvard Medical School/Beth Israel in Boston, Massachusetts, followed by multiple fellowships at the prestigious Texas Heart Institute in Houston, Texas.
Dr. Kumar has long served as a leader in the field of cardiology. His extensive experience includes directing catheterization labs and serving as STEMI Director in multiple healthcare systems, ensuring optimal care for acute heart attack patients. With his expertise in peripheral vascular interventions, complex coronary revascularization, and valve disease procedures, Dr. Kumar often manages challenging cases referred from across Texas and beyond.
Dr. Kumar’s dedication to his patients stems from a personal commitment to treating each individual like family, inspired by his own experiences. Outside of his medical practice, Dr. Kumar enjoys spending time with his wife and three children, weightlifting, swimming, playing pickleball, and exploring physics and philosophy.
BOARD CERTIFICATIONS:
Cardiovascular Disease
Interventional Cardiology
EDUCATION:
Fellowship, Interventional Cardiology: Texas Heart Institute, Houston, TX
Residency, Internal Medicine: Harvard Medical School/Beth Israel, Boston, MA
Medical School, MD Degree: UT Southwestern, Dallas, TX
HONORS & AWARDS:
Outstanding Resident Teacher Award, Harvard Medical School
Chief Interventional Fellow, Texas Heart Institute
OFFICE LOCATION:
HeartPlace Allen 1105 N. Central Expy., Bldg. 2 Ste. 2330 Allen, TX 75013
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