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.
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
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
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)
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, Cardiovascular Disease: University of Texas Southwestern Medical Center, Dallas, TX
Residency, Internal Medicine: Northwestern University Medical Center, Chicago, IL
Medical School, MD Degree: Magna Cum Laude; Ohio State University College of Medicine, Columbus, OH
Undergraduate: Johns Hopkins University. BA in Biology and Economics, with honors, Baltimore, MD
PUBLICATIONS/MEDIA:
Sharma S, Raman S, Benjamin S et al. Anterior wall viability and low ejection fraction predict functional improvement after CABG. Journal of Surgical Research 2011; 171:416-21.
Groh C, Sharma S, Pelchovitz DJ et al. Use of an electrocardiographic screening tool to determine candidacy for a subcutaneous implantable cardioverter-defibrillator. Heart Rhythm. 2014; 11:1361-6.
Reis JP, Allen N, Barone-Gibbs B, Lee J, Lewis C.E, Lima J, Lloyd-Jones D, Loria CM, Powell-Wiley TM, Sharma S, Wei GS, Liu K. Association of the degree of adiposity and duration of obesity with measures of cardiac structure and function: The CARDIA Study. Obesity. 2014; 22: 2434-40.
Sharma S, Colangelo LA, Lima J et al. Effects on cardiac remodeling of weight and weight change over 20 years: The Coronary Artery Risk Development in Young Adults Study (CARDIA). JACC. 2015; 65: 2463-5.
Sharma S, Colangelo LA, Allison MA et al. Association of serum leptin with future left ventricular structure and function: The Multi-Ethnic Study of Atherosclerosis (MESA). Int J Cardiol. 2015; 193: 64-68.
Sharma S, Colangelo LA, Lloyd-Jones D, Jacobs DR, Gross MD, Gidding SS, Greenland P. Longitudinal associations between adiponectin and cardiac structure differ by hypertensive status: Coronary Artery Risk Development in Young Adults (CARDIA). Cardiovascular Endocrinology. 2016; 5; 57-63.
You C, Sharma S, Bavishi A et al. Dialytic interval and the timing of electrocardiographic screening for subcutaneous cardioverter-defibrillator placement in chronic hemodialysis patients. J Interv Card Electrophysiol. Epub ahead of print
NATIONAL ABSTRACT/POSTER PRESENTATIONS:
Sharma S, Raman S, Sun B et al. Characteristics of patients that show improvement in left ventricular ejection fraction after a coronary artery bypass graft. American College of Surgeons Medical Student Program. October 2009, Chicago, IL.
Sharma S, Raman S, Sun B et al. Characteristics of patients showing improvement in left ventricular ejection fraction after surgical revascularization. Academic Surgical Congress. February 2010, San Antonio, TX.
Sharma S, Firstenberg M, Phillips G et al. Cardiac magnetic resonance predictors of left ventricular functional improvement after mitral valve repair for cardiomyopathy. American Heart Association Scientific Sessions. November 2011, Orlando, FL.
Sharma S, Colangelo L, Lima J et al. Longitudinal effects of obesity on cardiac remodeling: Coronary Artery Risk Development in Young Adults (CARDIA). American College of Cardiology Scientific Sessions. March 2014, Washington DC.
Sharma S, Colangelo L, Lima J et al. Association of leptin with cardiac remodeling: Coronary Artery Risk Development in Young Adults (CARDIA). American College of Cardiology Scientific Sessions. March 2014, Washington DC.
Friedman J, Sharma S, Katz DH et al. Stem cell transplantation is associated with prolonged recurrence-free survival in patients with cardiac AL amyloidosis. American College of Cardiology Scientific Sessions. March 2014, Washington DC.
Sharma S, Colangelo L, Allison M et al. Serum leptin is associated with less adverse future left ventricular structure and function: The Multi-Ethnic Study of Atherosclerosis (MESA). American College of Cardiology Scientific Sessions. March 2015, San Diego, CA.
Aagard P, Sharma S, McNamara D et al. Risk of Arrhythmia and Conduction Disease in Former National Football League Players. American College of Cardiology Scientific Sessions. March 2018, Orlando, FL.
Danielle Maskell, PMHNP-BC, is a dedicated Psychiatric Nurse Practitioner at Texas Advance Behavioral Health in Arlington, Texas. With over 29 years of acute care nursing experience, Danielle brings a wealth of expertise to her role, specializing in the diagnosis and treatment of complex mental health conditions across pediatric, adult, and geriatric populations. Her passion lies in providing compassionate care to individuals facing dual diagnoses, underserved communities, and those experiencing severe mental health challenges.
Danielle's commitment to psychiatric care is deeply personal, driven by her professional experiences working with the homeless population and supporting family members with mental health needs. She holds a Master's Degree in Nursing from the University of Texas at Arlington and completed her clinical practicums at Texas Advance Behavioral Health, MHMR Tarrant County, and Mayhill Hospital. She is board-certified as a Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) and holds active RN and APRN licenses in Texas.
Throughout her career, Danielle has treated a broad range of conditions, including ADHD, generalized anxiety disorder (GAD), major depressive disorder (MDD), bipolar disorder, schizophrenia, substance use disorders, and PTSD. She is skilled in telehealth services and trauma-focused cognitive behavioral therapy (CBT).
Danielle is a member of the American Psychiatric Nurses Association and the Psychiatric Advanced Practice Nurses of North Texas. Her leadership roles and volunteer work, including contributions to Union Gospel Mission and Habitat for Humanity, reflect her dedication to both patient care and community service.
Eunice Nyamichaba, APRN-CNP, is a dedicated Psychiatric Nurse Practitioner at Texas Advance Behavioral Health in Arlington, Texas. With a strong background in behavioral health nursing and a passion for patient-centered care, Eunice specializes in assessing, diagnosing, and treating individuals with complex mental health conditions. She works with patients across all age groups, from children and adolescents to adults and geriatric populations, providing comprehensive mental health care tailored to each individual's needs.
Eunice earned her Master of Science in Mental Health Nursing from Walden University and holds a Bachelor of Science in Nursing from Southwestern Adventist University. She is a board-certified Advanced Practice Registered Nurse (APRN-CNP) with certifications in Basic Life Support (BLS) and Handle with Care Crisis Intervention techniques. Her clinical expertise includes crisis intervention, patient assessment, preventative health, and infection control.
Before joining Texas Advance Behavioral Health, Eunice gained extensive experience as a Behavioral Health Registered Nurse, working in travel nursing roles at John Peter Smith Hospital, Santa Rosa Behavioral Health Hospital, Telecare Crisis Center, and Atascadero State Hospital. She provided acute psychiatric care to diverse patient groups, including those with addiction, forensic psychiatric needs, and long-term mental health disorders.
Known for her leadership and collaborative approach, Eunice has served as a charge nurse, preceptor, and patient advocate. Fluent in English, Kiswahili, and Ekegusii, she is committed to improving mental health outcomes within diverse communities.
Dr Ibi is a compassionate physician who has been in practice for more than 18 years. She is a people-person and is much loved by her patients because of her love for patient education that helps them be more compliant and better involved in their own care.
