Nikolaos A. Diakos, MD, PhD

Nikolaos A. Diakos, MD, PhD is an interventional cardiologist and specialist in heart failure who is pioneering new treatments and devices. He is recognized for his substantial clinical and translational research accomplishments in the areas of heart failure and mechanical cardiac support. Show full bio

Dr. Diakos has authored many papers in high-impact, peer-reviewed journals such as the Journal of the American College of Cardiology and the Journal of Heart and Lung Transplantation. He has also won almost a dozen awards for his research, including an award from the International Society for Heart and Lung Transplantation, a Research Merit Scholarship from the Acute Cardiac Unloading and Recovery Working Group (A-Cure), and numerous awards from the Hellenic Cardiological Society.

He is certified by the Educational Commission for Foreign Medical Graduates, the American Board of Internal Medicine (Internal Medicine, Cardiovascular Disease), and the National Board of Echocardiography.

He sees patients at The Texas Heart Institute Medical Group at 6624 Fannin Suite 2780, Houston, Texas 77030. For appointments, call (713) 790-9401.



See Publications

Texas Heart Institute Positions


  • Interventional Cardiology
  • Heart Failure
  • Mechanical Circulatory Support
  • Heart Transplantation


  • Postgraduate:

    University of Athens School of Medicine, Athens, Greece

  • Medical School:

    University of Athens School of Medicine, Athens, Greece

  • Residency:

    University of Utah, Salt Lake City, Utah

  • Fellowships:

    Research: Utah Cardiac Recovery Program, University of Utah Molecular Medicine Program, Eccles Institute of Human Genetics, Salt Lake City, Utah
    Cardiovascular Disease: Tufts Medical Center, Boston, Massachusetts
    Advance Heart Failure/Transplant: New York Presbyterian Hospital-Columbia University, New York City, New York
    Interventional Cardiology: Montefiore Medical Center, Bronx, New York

Academic & Clinical Affiliations


  • American Board of Internal Medicine, Cardiovascular Disease
  • American Board of Internal Medicine, Internal Medicine