The THMG Practice

The Texas Heart Medical Group physicians are internationally known for their expertise in diagnosing, treating, and preventing cardiovascular diseases.

Alexander Postalian, M.D.

Dr. Alexander Postalian is an interventional and general cardiologist, serving as a member of the teaching staff for Texas Heart Institute’s cardiovascular disease training programs and specializing in coronary, peripheral vascular, and structural/valvular heart disease intervention with clinical and research expertise in cardiovascular disease prevention, state-of-the-art coronary intervention guided by intravascular imaging and flow assessment, next-day discharge transcatheter aortic valve replacement, and minimally invasive abdominal aortic aneurysm treatment. Dr. Postalian has completed board certification examinations in Cardiovascular Diseases, Echocardiography, Nuclear Cardiology, and Internal Medicine, consistently scoring among the very highest in the nation. He is a graduate of the Texas Heart Institute Interventional and General Cardiology Fellowship training programs sponsored by Baylor College of Medicine and is a recipient of the Tauber Award in the category of Most Outstanding Graduating Cardiology Fellow. Prior to his cardiology fellowship, Dr. Postalian completed an internal medicine residency at The McGovern Medical School at the University of Texas Health Science Center at Houston. The native of Venezuela graduated Magna Cum Laude from the Universidad Central de Venezuela Medical School in 2010.

Patient Testimonials

  • Dr. Alexander Postalian is just one of my heroes at Texas Heart Medical Group. Dr. Stephannie Coulter to name another. The staff is like a caring family! I highly recommend! You will not be disappointed.

    – Charles S.

  • I’m no stranger to the group of fine cardiologists practicing there in the O’Quinn Tower in the 6600 block of Fannin in Houston. I didn’t just stumble upon them – my now retired internist in Nacogdoches recommended me to them some nearly 20 years ago. Lots of lateral artery disease, cardiovascular disease, diabetes triggering a metabolic syndrome situation has kept me coming back seeing the “new group’s” predecessor, Dr. Patrick Hogan, for his finely honed diagnostician skills – plus I had the comfort of visiting the other honored and honorable doctors associated in the cordial and most professional group in the absence of my “main man”. Recently on the heels of the retirement proceedings of the venerable Dr. Hogan, I was able to in the throes of a quandary predicament get quickly connected by phone with Dr. Alexander Postalian who promptly analyzed, recognized, and resolved to do something about the nth degree pain I was suffering. Upon heading to Houston PDQ in the middle of the Corona calamity, I was able to get the capable, courteous, professional, and precise care from support staff and surgeons alike. Dr. Postalian’s swift determination of the 100% blockage I had enabled him to in a nearly 4-hour process get me open and flowing – to an area heretofore reflecting no discernible pulse. Emotional relief accompanied the situation inasmuch as being from out of town (no visitors or family allowed in the hospital room) I could count on multiple calls, emails, texts, to/from between Dr. Postalian and my family, thereby keeping them as well as myself apprised and comforted. This concern and follow-up continues. The hands-on care and contact is the closest I’ve come to the quick as was needed contact with my doctors like I had over 70 years ago. This group will make you as a patient feel good in all necessary and desired ways.

    – Craig S.