Find a Top Internist Near Me in Irving, TX – Book an Appointment Instantly

Schedule Appointment with Dr. Rashdan:

• Bedford Clinic
  
• Southlake Clinic

BOARD CERTIFICATIONS:

• Interventional Cardiology
• Cardiovascular Disease
• Echocardiography
• Internal Medicine

LANGUAGES:

• English
• Arabic
• French

HOSPITALS:

• Glen Rose Medical Center
• ​Medfinity Health HEB
• Texas Health HEB
• Texas Health Heart & Vascular Hospital Arlington

EDUCATION:

• Fellowship, Interventional Cardiology: University of Oklahoma, Oklahoma City, OK 
• Fellowship, Cardiovascular Disease: University of Oklahoma, Oklahoma City, OK 
• Fellowship, Echocardiology: Institut de Cardiologie de Montreal, Montreal, Quebec, Canada 
• Fellowship, Interventional Cardiology: Institut de Cardiologie de Montreal, Montreal, Quebec, Canada 
• Residency, Internal Medicine:  University of Pennsylvania, Philadelphia, PA 
• Internship, Internal Medicine:  University of Pennsylvania, Philadelphia, PA
• Internship, Internal Medicine:  Pitie-Salpetriere Medical School 
• Internship, Internal Medicine:  Dreux General Hospital 
• Medical School, MD Degree: Damascus University School of Medicine, Lebanon

Schedule Appointment with Dr. Bhargava:

• Downtown Fort Worth/Medical District Office
• Fort Worth-Mira Vista
• Granbury
• Pecan Plantation

BOARD CERTIFICATIONS:

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

HOSPITALS:

• Heart and Vascular Surgical Center
• Medical City Fort Worth
• Medical City Arlington
• Methodist Mansfield
• Texas Health Azle
• Texas Health Fort Worth
• Texas Health Heart and Vascular Arlington
• Texas Health SW Fort Worth

EDUCATION:

• Residency, Internal Medicine: New York Medical College, Valhalla, NY.
• Fellowship, Cardiovascular Medicine: St. Vincent’s Catholic Medical Centers of New York, New York, NY.
• Fellowship, Interventional Cardiology: Albert Einstein Medical Center, Philadelphia, PA.
  

HONORS/AWARDS: 

• Fort Worth Top Doctors of 2026

Schedule Appointment with Dr. Ramanath here BOARD CERTIFICATIONS:

• Interventional Cardiology
• Cardiovascular Disease
• Nuclear Cardiology
• Echocardiography
• Vascular Interpretation (RPVI)
• Internal Medicine

HOSPITALS:

• Baylor Scott & White | The Heart Hospital Plano
• Medfinity Health Plano
• Texas Health Allen
• Texas Health Frisco
• Texas Health Plano

EDUCATION:

• Fellowship, Cardiology & Peripheral Vascular Interventions: Yale-New Haven Hospital, Yale University School of Medicine, New Haven, CT
• Fellowship, General Cardiology: Dartmouth-Hitchcock Medical Center, Dartmouth Medical School, Lebanon, NH
• Fellowship, Research Cardiology: University of Michigan Cardiovascular Center, Ann Arbor, MI
• Residency, Internal Medicine:  University of Pittsburgh Medical Center, Pittsburgh, PA
• Internship, Internal Medicine:  University of Pittsburgh Medical Center, Pittsburgh, PA
• Medical School, MD Degree:  SUNY Upstate Medical University, Syracuse, NY
• Undergraduate:  SUNY at Buffalo, Buffalo, NY
• Undergraduate:  Boston University, Boston, MA

HONORS/AWARDS:

• D Magazine's Best Doctors in Collin County: 2024, 2025, 2026
• D Magazine's Best Doctors: 2017, 2025
• Physician of the Year, Heart & Vascular Center, THR Plano 2015

PROFESSIONAL ASSOCIATIONS:

• American College of Cardiology
• American Medical Association
• American Society of Nuclear Cardiology
• American Board of Vascular Medicine
• Society for Coronary Angiography and Interventions

PUBLICATIONS/MEDIA:

• Ramanath, Vijay S., "Spider Vein Treatment: What You Need to Know". https://www.youtube.com/watch?v=1Zp7LOoyTzE. Mar 27, 2024.

• Ramanath, Vijay S., "Understanding Varicose Veins: Causes and Treatments".https://www.youtube.com/watch?v=5NumfzSimsQ. Mar 26, 2024.

• Ramanath, Vijay S., "Medical Minute: Aortic Stenosis with Dr. Vijay Ramanath". https://www.youtube.com/watch?v=bGq22Vupp9A

• Ramanath, VS., Sachar, R., Soga, Y., Ansari, M., Kozuki, A., Lopez, L., Brodmann, M., Schroe, H., Diaz-Cartelle, J., & Zeller, T. (2021, May 24). 1-Year Results From the RANGER II SFA Randomized Trial of the Ranger Drug-Coated Balloon. ScienceDirect. https://www.sciencedirect.com/science/article/abs/pii/S1936879821004775.

• Ramanath, VS. "Dr. Vijay S. Ramanath Discusses Positive Outcomes In Minimally Invasive Vein Disease Treatments". http://www.pennsylvania-magazine.com. January 11, 2019.

• Ramanath VS. "FOUR DOCTORS MAKING A DIFFERENCE IN THE CORRIDOR". addisonmagazine.com. Georgia Smith. February 19, 2014.

• Ramanath VS. "Second opinion saves man from double amputation". starlocalmedia.com. Kelsey Samuels. May 7, 2017.

• Ramanath VS, Thompson CA. STEMI: Adjunctive Therapies for Primary PCI In: The SCAI Interventional Cardiology Board Review. Lippincott Williams and Wilkins. 2013.

• Ramanath VS, Thompson CA. STEMI: Reperfusion (Primary PCI vs Thrombolysis) In: The SCAI Interventional Cardiology Board Review. Lippincott Williams and Wilkins. 2013.

• Ramanath VS, Thompson CA. Guidewires and Balloons - the Primer In: Textbook of Cardiovascular Intervention. Springer. 2013.

• Ramanath VS, Eagle KA. Guideline adherence and outcomes in coronary heart disease and heart failure In: UpToDate, Rose, BD (Ed), UpToDate, Waltham, MA, 2007, 2008, 2009, 2010, 2011, 2012.

• Ramanath VS, Oh JK, Sundt III TM, Eagle KA. Acute aortic syndromes and thoracic aortic aneurysm In: Cardiovascular Diseases: Diagnosis and Management, Gerber TC, Asirvatham SJ, Lavie CJ, Oh JK (Ed), Mayo Foundation for Medical Education and Research, Rochester, MN, 2010.

 

Scientific Publications:

• Ramanath VS, Thompson CA. Coronary chronic total occlusion recanalization - current techniques and approaches. Interventional Cardiology Review. 2013;8(1):41-5.

• Zlotnick DM, Ramanath VS, Brown JR, Kaplan AV. Classification and treatment of coronary artery bifurcation lesions: putting the Medina classification to the test. Cardiovasc Revasc Med2012 Jun 13 (Epub).

• Ramanath VS, Szot CR, Andrus BW, Kaplan AV, Robb JF. Takotsubo cardiomyopathy following administration of midodrine. Tex Heart Inst J. 2012;39(1):158-159.

• Robert AM, Brown JR, Sidhu MS, Ramanath VS, DeVries JT, Jayne JE, Hettleman BD, Friedman BJ, Niles NW II, Kaplan AV, Malenka DJ, Robb JF, Thompson CA. The evaluation of creatinine clearance, estimated glomerular filtration rate, and serum creatinine in predicting contrast-induced acute kidney injury among patients undergoing percutaneous coronary intervention. Cardiovasc Revasc Med. 2012;109(1):122-7.

• Suzuki R, Isselbacher EM, Nienaber CA, Pyeritz RE, Eagle KA, Tsai TT, Cooper JV, Januzzi JL, Braverman AC, Montgomery DG, Fattori R, Pape L, Harris KM, Booher A, Oh JK, Peterson M, Ramanath VS, Froehlich JB. Type-selective benefits of medications in treatment of acute aortic dissection (from the International Registry of Acute Aortic Dissection [IRAD]). Am J Cardiol. 2012;109(1):122-7.

• Ramanath VS, Eagle KA, Nienaber CA, Isselbacher EM, Froehlich JB, Cooper JV, Gu X, Evangelista A, Meinhardt G, Beckman J, Myrmel T, Pape L, Pyeritz RE, Hirsch AT, Bossone E. The role of preoperative coronary angiography in the setting of type A acute aortic dissection: Insights from the International Registry of Acute Aortic Dissection. Am Heart J. 2011;161(4):790-796.e1.

• Booher AM, Isselbacher EM, Nienaber CA, Froehlich JB, Trimarchi S, Cooper JV, Demertzis S, Ramanath VS, Januzzi JL, Harris KM, O'Gara PT, Sundt III TM, Pyeritz RE, Eagle KA. Ascending thoracic aorta dimension and outcomes in acute type B dissection (from the International Registry of Acute Aortic Dissection [IRAD]). Am J Cardiol. 2011;107(2):315-320.

• Ramanath VS, Brown JR, Malenka DJ, DeVries JT, Sidhu MS, Robb JF, Jayne JE, Hettleman BD, Friedman BJ, Niles NW II, Kaplan AV, Thompson CA. Outcomes of diabetics receiving bare-metal stents versus drug-eluting stents. Catheter Cardiovasc Interv. 2010;76(4):473-81.

• Olomu AB, Grzybowski M, Ramanath VS, Rogers AM, Motyka-Vautaw B, Chen B, Roychoudhury C, Jackson EA, Eagle KA. Evidence of disparity in the application of quality improvement efforts for the treatment of acute myocardial infarction: the American College of Cardiology's Guidelines Applied in Practice initiative in Michigan. Am Heart J. 2010 Mar;159(3):377-384.

• Ramanath VS, Armstrong DF, Grzybowski M, Rahnama-Mohagdam S, Tamhane UU, Gordon K, Froehlich JB, Eagle KA, Jackson EA. Discharge medication use and outcomes in acute coronary syndrome patients with non-obstructive coronary artery disease. Clin Cardiol. 2010 Jan;33(1):36-41.

• Ramanath VS, Oh JK, Sundt III TM, Eagle KA. Acute aortic syndromes and thoracic aortic aneurysm. Mayo Clinic Proc. 2009 May;84(5):465-481.

• Motivala AA, Tamhane U, Ramanath VS, Saab F, Montgomery DG, Fang J, Kline-Rogers E, May N, Ng G, Froehlich J, Gurm H, Eagle KA. A prior myocardial infarction: how does it affect management and outcomes in recurrent acute coronary syndromes? Clin Cardiol. 2008 Dec;31(12):590-596.

• Rogers AM, Ramanath VS, Grzybowski M, Riba AL, Jani SM, Metha R, De Franco AC, Parrish R, Skorcz S, Baker PL, Faul J, Chen B, Roychoudhury C, Elma MAC, Mitchell KR, Froehlich JB, Montoye C, Eagle KA. The association between guideline-based treatment instructions at the point of discharge and lower 1-year mortality in Medicare patients after acute myocardial infarction: The American College of Cardiology's Guidelines Applied in Practice (GAP) initiative in Michigan. Am Heart J. 2007 Sept;154(3): 461-469.

• Ramanath VS, Eagle KA. Evidence-based medical therapy of patients with acute coronary syndromes. Am J Cardiovasc Drugs. 2007;7(2): 95-116.

• Vasaiwala S, Nolan E, Ramanath VS, Fang J, Kearly G, Van Riper S, Kline-Rogers E, Otten R, Cody RA, Eagle KA. A quality guarantee in acute coronary syndromes: The ACC's GAP program taken real-time. Am Heart J. 2007 Jan;153(1):16-21.

 

• Ramanath VS, Lacomis JM, Katz WE. Diagnosis of pulmonary embolism by acute right heart morphologic and hemodynamic changes observed during exercise stress echocardiography. J Am Soc Echocardiogr. 2004 Sep;17(9):1005-8.

Schedule Appointment with Dr. Frenkel:

• Garland Clinic
• White Rock Clinic

BOARD CERTIFICATIONS:

• Cardiovascular Disease
• Internal Medicine
• Interventional Cardiology

HOSPITALS:

• Baylor Scott & White Heart and Vascular Hospital - Dallas
• Baylor Scott & White Medical Center - Lake Pointe
• Baylor Scott & White | The Heart Hospital Plano
• Baylor University Medical Center
• Medfinity Health Plano
• Medical City Dallas
• Medical City Heart Hospital
• Methodist Richardson Regional Medical Center
• North Park Heart & Vascular Center
• Texas Health Dallas
• White Rock Medical Center

EDUCATION:

• Fellowship, Interventional Cardiology: Baylor College of Medicine, Houston, TX 
• Fellowship, Cardiology: Baylor College of Medicine, Houston, TX 
• Residency, Internal Medicine:  University of Texas Southwestern Medical School, Dallas, TX 
• Internship, Internal Medicine:  University of Texas Southwestern Medical School, Dallas, TX 
• Medical School, MD Degree: University of Texas Southwestern Medical School, Dallas, TX 

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)

​

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:

• 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

HONORS/AWARDS:

• D Magazine Best Doctors in Collin County: 2026
  
  

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.

Bishwas Upadhyay, MD, is a board-certified internal medicine physician at Texas Primary & Pediatric Care in Irving & Celina, Texas. Dr. Upadhyay’s philosophy in medicine is to help the body care for itself. He strongly believes in the power of preventive medicine and places high importance on the doctor-patient relationship. He is known for being attentive and articulate, and finds joy in educating and counseling his patients. 

Dr. Upadhyay is originally from the Himalayan country of Nepal. He graduated from Nepalgunj Medical College in Nepal and completed his residency training in internal medicine at Presence Saint Joseph Hospital in Chicago, Illinois, where he served as a chief resident. Afterward, he joined the University of Nevada Reno School of Medicine as an assistant professor of medicine and later served as an academic hospitalist and associate program director for their internal medicine residency program. 

In addition to taking care of his patients in the hospital, Dr. Upadhyay also taught medical students and residents in both hospital and primary care settings. During his tenure as the associate program director at the University of Nevada, he developed a quality improvement and patient safety curriculum. He also coached and mentored residents in their quality improvement and patient safety projects. 

In addition to his board-certification, Dr. Upadhyay is a fellow of the American College of Physicians and received several awards and recognitions throughout his medical career. Dr. Upadhyay is fluent in English, Nepali, Hindi, and Urdu, allowing him to better serve the diverse patient populations in his community.

Outside of work, Dr. Upadhyay loves hiking, spending time with his family, and traveling. He is also an amateur cook.

 Dr. Ava Karimi is a Board-Certified Internal Medicine Physician with an MD/MBA, blending clinical excellence with strategic leadership to deliver patient-centered, value-based care. At Southwest Mind and Body, she specializes in medical weight loss programs and functional medicine, helping patients achieve sustainable, whole-body wellness through personalized, integrative care.

Her background spans complex case management, quality improvement, and community-based preventative medicine, with a strong focus on chronic disease management and reducing disparities in care. She also holds advanced training in aesthetic medicine, complementing her holistic approach to patient wellness.

Her MBA shapes how she leads: identifying systemic inefficiencies, building collaborative teams, and implementing solutions that elevate both patient outcomes and operational performance. She is recognized for teaching excellence and a deep commitment to mentoring the next generation of physicians.

Board-certified osteopathic physician who specializes in Infectious Disease, Wound Care, Undersea (Dive) and Hyperbaric Medicine, and Natural Pain Management - with the use of Osteopathic Manipulative medicine and other modalities. He runs a multidisciplinary medical practice with primary interest in Natural Pain Relief