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BOARD CERTIFICATIONS:

• Clinical Cardiac Electrophysiology
• Cardiovascular Disease

HOSPITALS:

• Baylor Scott & White Heart & Vascular Hospital - Dallas
• Baylor Scott & White | The Heart Hospital Plano
• Baylor University Medical Center
• Medfinity Health Plano
• Medical City Dallas
• Medical City Heart Hospital
• Medical City Frisco
• Medical City Plano
• Methodist Richardson Medical Center
• North Park Heart & Vascular Center
• Texas Health Allen
• Texas Health Frisco
• Texas Health Plano

EDUCATION:

• 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.

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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) 

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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. 

Schedule Appointment with Dr. Usman Hashmi here

BOARD CERTIFICATIONS:

• Interventional Cardiology
• Cardiovascular Disease
• Nuclear Cardiology
• Internal Medicine

HOSPITALS:

• Baylor All Saints Medical Center
• Baylor Heart & Vascular Hospital - Dallas
• Medfinity Health HEB
• Medical City Alliance
• Medical City North Hills

EDUCATION:

• Fellowship, Interventional Cardiology:  St. John's Hospital and Medical Center, Detroit, MI
• Fellowship, Cardiovascular Disease:  St. John's Hospital and Medical Center, Detroit, MI
• Chief Resident:  St. John's Hospital and Medical Center, Detroit, MI
• Residency, Internal Medicine:  St. John's Hospital and Medical Center, Detroit, MI
• Medical School, MD Degree: American University of the Caribbean, Coral Gables, FL
• Undergraduate:  State University of New York at Buffalo School of Medicine, Buffalo, NY 

PROFESSIONAL APPOINTMENTS:

• Medical Director of the North Central Texas Trauma Regional Advisory Council Cardiac Committee (Current)
• Medical Director CV Services Chest Pain Center – Wise Health System (2/2023)
• Physician of the Month – The Villages Regional Hospital (4/2017)
• Chief Cardiology Fellow – Ascension St John Hospital (7/2013)
• Chief Medical Resident – Ascension St John Hospital (7/2010)
• Intern of the Year – Ascension St John Hospital (6/2008)

PUBLICATIONS:

Presentations and Electronic Media

• Primary Care Physicians and Cardiologists: Recognizing and Bridging the Gaps in Lipid Management. Usman Hashmi MD, James J. Maciejko PhD FACC, Susan Szpunar PhD, Howard Rosman MD FACC – National Cardiovascular Disease Registry (NCDR) Conference – Thurs 3/7/13.
• Case Presentation “Hearing Loss, Achilles Tendon Rupture, Acute Aortic Insufficiency: A Case of Cogan’s Syndrome” Usman Hashmi MD, Randy Tashjian MD, Howard Rosman MD Michigan Chapter ACC 2012 Cardiovascular Summit – Sunday September 30th, 2012 1st Place – Oral Case Competition.
• A Case for Patient Safety: Central Venous Catheter Related Cardiac Injury Shwan Jalal MD, Usman Hashmi MD, Nancy Mesiha MD. Michigan ACC Regional Meeting.
• Seeing the Moon but Missing the Stars: A case of Balint’s syndrome Sajid Ali MD, Tareq Noureldeen MD, Usman Hashmi MD, Shyam Moudgil MD St John Hospital and Medical Center. Accepted abstract submission and poster presented at ACP Michigan meeting April 2011.
• Pre-operative Use of Antiplatelet Therapy in Patients Undergoing CABG: Need Antiplatelet Agents be Stopped for 5 days? Usman Hashmi MD, Ramamanohara Pai MD, Howard Rosman MD, Susan Szpunar PhD, Thomas Lalonde MD, Sanjay Batra MD Presented Research Day St John Hospital and Medical Center, Wednesday May 5th 2010.
• A Shocking Revelation Usman Hashmi MD, Tejwant Singh MD, Ramamanohara Pai MD St John Hospital and Medical Center, Detroit, Michigan. Accepted abstract submission and poster presented at ACP Michigan meeting 10/2/2010.
• Alveolar Hemorrhage in an Octogenarian: An Unusual Presentation for Wegener’s Granulomatosis Usman Hashmi MD, William Ventimiglia MD FACP, MD. St John Hospital and Medical Center, Detroit, Michigan. Accepted abstract submission and poster presented at ACP Michigan meetings 5/9/2008 and 9/13/2008.
• Boka’s Notes Internal Medicine APP, A Guide for Interns, Residents & Medical Students. Kamran Boka, MD. Application for IPAD OS and Android Platforms. July 2012. Reviewer: Usman Hashmi,MD.

Publications – Journals and Books

• Management of Gastrointestinal Bleeding in Patients Anticoagulated with Dabigatran Compared with Warfarin: A Retrospective, Comparative Case Review. Wuttiporn Manatsathit MD, HusseinAl-hamid MD, Pornchai Leelasinjaroen MD, Usman Hashmi MD, Peter A. McCullough MD Cardiovasc Diagn Ther. 2014 Jun;4(3):224-31.
• Literature Review: Age, Sex, and Symptoms and the Prevalence of Significant Coronary Artery Disease by Coronary Computed Tomographic Angiography Nancy Mesiha MD, Usman Hashmi MD, Chatchawan Piyaskulkaew MD, Peter A. McCullough MD. Reviews in Cardiovascular Medicine. Vol 12 – No 4, 2012.
• Firas Yazigi, MD, Usman Hashmi, MD, Henry Yuan, MD, Karthiek Narala, MD, Peter A. McCullough, MD, MPH, FACC, FACP, FAHA, FCCP. Kathleen Stergiopoulos, MD, PhD, FASE, FACC and David L. Brown, MD, FACC editors. “Cardiovascular Issues and Renal Disease” Evidence-Based Cardiology Consult, K. Stergiopoulous, D.L.Brown. Springer, November 2013.
• “Seat Belt Use By Police: Should They Click It?” von Kuenssberg Jehle, MD Dietrich, David G. Wagner, James Mayrose, Usman Hashmi. Journal of Trauma-Injury Infection & Critical Care 58(1), January 2005: 119-120

BOARD CERTIFICATIONS:

• Interventional Cardiology
• Cardiovascular Disease
• Nuclear Cardiology
• Echocardiography
• Internal Medicine

HOSPITALS:

• Baylor Scott & White Medical Center - Lake Pointe
• Baylor Scott & White Medical Center - Plano
• Baylor Scott & White | The Heart Hospital - Denton
• Baylor Scott & White | The Heart Hospital - Plano
• Methodist Richardson Medical Center

EDUCATION:

• Fellowship, Interventional Cardiology:  Saint Vincent’s Hospital and Medical Centers, NY
• Fellowship, Cardiovascular Disease:  Saint Vincent’s Hospital and Medical Centers, NY
• Residency, Internal Medicine: Albert Einstein College of Medicine/Montefiore Medical Center, NY
• Medical School, MD Degree:  SUNY Stonybrook School of Medicine, NY
• Undergraduate, BS Degree:  CUNY City College, NY

HONORS/AWARDS:

• Saint Vincent’s Hospital and Medical Centers, New York (2007-2008)
• Saint Vincent’s Hospital and Medical Centers, New York (2004-2007)
• Albert Einstein College of Medicine/Montefiore Medical Center, New York (2001-2004)
• SUNY Stonybrook School of Medicine, New York (1994-2001)
• CUNY City College, New York (1994-2001)

PROFESSIONAL APPOINTMENTS:

• Medical Executive Committee, Member - Baylor Scott and White Medical Center at Garland, Texas (2012-2018)
• American Heart Association/Fellows Society of Greater New York, Fellow Liaison – St. Vincent's Hospital, NY (2005-2006)

PROFESSIONAL ASSOCIATIONS:

• The Society of Cardiovascular Angiography and Interventions, SCAI-Member (2007-present)
• North American Society of Cardiovascular Imaging, NASCI-Member (2006-present)
• American Society of Echocardiography, ASE-Member (2004-present)
• American Society of Nuclear Cardiology, ASNC-Affiliate Member (2004-present)
• American College of Cardiology, ACC-Member (2004-present)
• American Heart Association, AHA-Member (2004-present)
• American Medical Association, AMA-Member (2001-present)

PUBLICATIONS:

Research:

• Co-Investigator, "Vascular Supply of the Anterobasal Segment of the Left Ventricle, Retrospective review of 45 consecutive coronary angiography cases looking at the Anterobasal Segment contractility along with patency of the native Left Anterior Descending Artery and Left Internal Mammary Artery." (2005-2006)
• Co-Investigator, Worked with Dr.Thierry LeJemtel on the Brain Natriuretic Peptide (BNP) study. The purpose of the project was to determine if BNP levels could be used to determine the cardiovascular status of patients with Congestive Heart Failure (2002)

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Presentations:

• Presentation: Pre-Op Clearance to the Anesthesia department at St.Vincent's Hospital and Medical Center. (2006)
• Electrocardiogram Interpretation for medical students and house staff at St. Vincent's Hospital and Medical Center/New York Medical College. (2004-2006)
• Over 100 presentations through out fellowship in case management conferences, cardiac catheterization conferences, M & M and cardiac surgical conferences, Journal club conferences, Cardiac Critical Care conferences, EP, Echo, EKG, CHF and Nuclear conferences

BOARD CERTIFICATIONS:

• Cardiovascular Disease
• Vascular Interpretation
• Obesity Medicine
• Internal Medicine

HOSPITALS:

• Baylor Heart & Vascular Hospital - Dallas
• Baylor University Medical Center
• Hunt Regional Medical Center
• Texas Health Rockwall

EDUCATION:

• Masters Medical Management/Business Administration:  University of Dundee, Nethergate, Dundee, Scotland
• Fellowship, Cardiovascular Disease:  Univeristy of Medicine and Dentistry of New Jersey-Cooper Hospital, Camden, NJ
• Residency, Internal Medicine:  Atlantic City Medical Center, Atlantic City, NJ
• Residency, General Medicine:  Lahore General Hospital, Lahore, Punjab
• Internship, General Medicine:  Allama Iqbal Medical College, Lahore, Punjab
• Internship, General Surgery: Allama Iqbal Medical College, Lahore, Punjab
• Medical School, MD Degree: The University of the State of New York, Albany, NY
• Undergraduate, Bachelor of Medicine/Bachelor of Science: Univeristy of Punjab, Pakistan

BOARD CERTIFICATIONS:

• Interventional Cardiology
• General Cardiology

HOSPITALS:

• Medical City Plano
• Texas Health Allen
• Texas Health Frisco
• Texas Health Plano

EDUCATION:

• 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.

Dr. Linh Ba Nguyen is a highly regarded internist, with a specialization in Sleep Medicine, practicing in the Dallas-Fort Worth Metroplex area. He and his wife Dr. Thuy Ngoc Nguyen treat their patients from the warm and comfortable Prima Health Clinic in Garland, TX.

Dr. Linh Ba Nguyen grew up in Houston and later attended the University of Dallas at Irving where he graduated Magna Cum Laude with a Bachelor’s degree in Biochemistry. He then went to the UT San Antonio Medical School and completed his internship in Internal Medicine. Dr. Nguyen transferred to the UTMB to complete his residency in Internal Medicine. He then joined the Prima Health Clinic in 1993. Dr. Nguyen is also board certified in Sleep Medicine, which he obtained in 2010.

Dr. Linh Ba Nguyen spends his spare time with the three daughters he has with his wife and is an avid runner. He has even run in marathons and a few triathlons.

Dr. Thuy Ngoc Nguyen is a leading internist in the Dallas-Fort Worth Metroplex area with a focus on Anti-Aging, Regenerative and Functional Medicine. She practices at the Prima Health Clinic in Garland, TX, with her husband, Dr. Linh Ba Nguyen. Patients of the clinic can expect their overall health and wellbeing to be cared for by highly experienced medical professionals.

Dr. Thuy Ngoc Nguyen is a native of Dallas and grew up assisting her father Dr. Thanh Nguyen at the Prima Health Clinic. She attended the University of Dallas in Irving and graduated with Bachelor’s degree as Cum Laude in Biology. She then went to the University of Texas Medical Branch in Galveston. Dr. Nguyen then returned to Dallas for her Internship and Residency training in Internal Medicine at the Presbyterian Hospital of Dallas. Dr. Nguyen then joined her husband, Dr. Linh Ba Nguyen, and father at the Prima Health Clinic in 1996.  She is devoted to early detection and determining the root cause of illnesses through functional testing. She also provides lifestyle and nutritional therapy. She is currently undergoing a Fellowship in Anti-Aging, Regenerative, and Functional Medicine.

When not practicing medicine and caring for patients, Dr. Thuy Ngoc Nguyen spends time with her three daughters.

Gary E. Goff, MD, has come to be known as one of the leading physicians serving Dallas and North Texas families. His combination of reputable training, extensive experience, and compassionate service have set him apart, leading to long-term relationships with his patients built on trust and integrity. He specializes in the diagnoses, treatment, and prevention of chronic illnesses, cardiac health, cancer, diabetes, preventative medicine, common ailments, and more.

Dr. Goff attended Hardin Simmons University in Abilene, Texas, where he completed his undergraduate degree. Following undergraduate studies, Dr. Goff moved on to Dallas to attend the University of Texas Southwestern Medical School to complete his medical degree in 1993. He underwent his internship and residency training at Parkland Memorial Hospital and St. Paul University Hospital, both prestigious medical facilities.

Following the completion of his residency program, Dr. Goff gained extensive experience serving in many roles throughout the healthcare system. He has worked in affiliation with Baylor University Medical Center in Dallas, served as the medical director for both the Baylor Ellis County Community Health Clinic as well as the Pleasant Manor Nursing Center in Waxahachie, Texas, and created his own vibrant medical practice. Throughout these experiences, he has come to be seen as a caring and dedicated physician committed to community wellness.

Dr. Goff is board certified with the American Board of Internal Medicine and is a proud member of the Texas Medical Association, the Medical Group Management Association (MGMA), the American Medical Association, the Texas Medical Directors Association, and the Dallas County Medical Society. In addition, he has received numerous awards and recognitions, including the Republican Gold Medal Award for 2002 and 2003 and the Courtesy Staff Physician at Baylor University Medical Center.

Tayler Long, MD, is a board-certified pulmonologist at Southwest Pulmonary Associates in Plano, Texas. He is committed to providing excellent pulmonary and critical care medicine to the community. 

Dr. Long earned his Bachelor of Arts in Human Biology from Stanford University in Palo Alto, California, before completing his Doctor of Medicine at the University of California, San Diego School of Medicine. He went on to complete both his residency in Internal Medicine and his fellowship in Pulmonary and Critical Care Medicine at the prestigious UT Southwestern Medical School in Dallas, Texas.

In addition to his clinical training, Dr. Long holds a Master of Science in Healthcare Leadership and Management from UT Dallas, equipping him with the tools to lead effectively in today’s evolving healthcare landscape. His advanced education and years of experience allow him to offer expert care in managing complex lung diseases, respiratory failure, and critical illness.

Dr. Long joined Southwest Pulmonary Associates in 2007. He has served as President of the Medical Staff at Texas Health Plano and currently holds leadership roles on the Medical Executive Committee at Texas Health Frisco. He also serves as the Director of the ICU at Texas Health Frisco, reflecting his commitment to both patient care and institutional excellence. He is has been recognized as one of D Magazine's Best Docs repeatedly, most recently in 2025.

Outside of medicine, Dr. Long is a devoted husband and father. He is married and enjoys spending time with his three beautiful children.

Arhaanth Reddy, MD, is a board-certified pulmonologist at Southwest Pulmonary Associates in Plano, Texas. He is known for his expertise in diagnosing and treating complex respiratory conditions and for delivering evidence-based care with compassion and precision.

Dr. Reddy earned his medical degree from the University of California, San Diego School of Medicine, and completed his residency in internal medicine at UT Southwestern Medical School in Dallas, Texas. He went on to complete a fellowship in pulmonary and critical care medicine at UT Southwestern, where he also earned a Master of Science in Healthcare Leadership and Management. His academic excellence was recognized early on with election to the Alpha Omega Alpha Honor Medical Society and the prestigious Richard Mays Smith Award in Internal Medicine.

Dr. Reddy is triple board-certified by the American Board of Internal Medicine in Critical Care Medicine, Neurocritical Care Medicine, and Pulmonary Medicine.

In addition to his clinical work, Dr. Reddy serves as the current Vice Chair of the Department of Medicine at Texas Health Plano, where he helps shape the future of patient care, quality, and medical education.

Dr. Reddy offers a comprehensive range of advanced diagnostic procedures, including robotic bronchoscopy, endobronchial ultrasound (EBUS), and integrated 3D fluoroscopy, providing patients with cutting-edge evaluation and treatment options.

He has also been the recipient of several awards, including the:

• Alpha Omega Alpha Honor Medical Society, 2011
• Richard Mays Smith Award in Internal Medicine, UT Southwestern, 2011

Dr. Reddy chose a career in pulmonary and critical care medicine because he enjoys complex problem-solving and transforming insights into better outcomes for his patients.

Outside of medicine, he enjoys traveling, photography, reading, and, most of all, spending time with his three wonderful children.

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.

Mark Robertshaw, MD, is a board-certified pulmonologist and critical care medicine specialist proudly serving patients in Plano, Texas. He joined Southwest Pulmonary Associates in 2023, bringing with him a wealth of clinical experience and a compassionate, patient-centered approach to care.

Dr. Robertshaw completed his fellowship in Pulmonary and Critical Care Medicine at UT Southwestern Medical Center in Dallas, Texas, where he was honored to serve as Chief Fellow during the 2022–2023 academic year. He completed his residency training at Duke University Hospital in Durham, North Carolina, and earned his medical degree from the University of Missouri in Columbia. His academic journey began at the University of Notre Dame in South Bend, Indiana, where he received his Bachelor of Science and developed a lifelong passion for Fighting Irish football.

Board certified by the American Board of Internal Medicine in both Pulmonary Medicine and Critical Care Medicine, Dr. Robertshaw is committed to helping patients manage a wide range of respiratory conditions with leading-edge diagnostic tools and individualized treatment plans. His dedication to community service has been recognized with prestigious honors, including the President’s Volunteer Service Award and the Congressional Award, both received in 2013.

Outside the clinic, Dr. Robertshaw enjoys spending quality time with his wife and daughter, golfing, and cheering on his alma mater during college football season. He looks forward to building long-lasting relationships with his patients and their families throughout the Plano community.