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Keith A Horvath, MD

Specializing In: Adults (18+ years)

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Main Location

Johns Hopkins Community Physicians at Suburban Hospital

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Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

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International Patients

Call +1-410-502-0773 (7a.m. to 6p.m., EST, Mon-Fri)

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Aortic Aneurysms, Aortic Valve Repair, Cardiac Surgery, Cardiovascular Surgery, Mitral Valve Repair, Revascularization, Surgery, Thoracic Surgery, Thoracoscopy, Transmyocardial Laser Revascularization


Dr. Keith Horvath is the Director of Cardiothoracic surgery research at the NHLBI and chief of cardiothoracic surgery at Suburban Hospital, where he leads the NIH Heart Center.

Dr. Horvath is recognized as one of the DC metropolitan area’s top cardiac surgeons based on responses from a Washingtonian questionnaire sent to 7,000 area physicians asking them where they would send their family members for care.

Dr. Horvath has performed close to 5,000 valve surgeries and he has achieved excellent outcomes in terms of fewer complications, lower mortality rates and fewer readmissions after surgery, based on data from the Society of Thoracic Surgery National Database.
You can learn about Dr. Horvath’s leading-edge research at the National Heart, Lung, and Blood Institute by reading “On the other Side of the Lens: Photographer Turns Focus to His Heart."

As a highly respected surgeon and gifted researcher, Dr. Horvath has clinical investigation interests including mitral valve repairs and aortic surgery.

To learn about Dr. Horvath’s program leadership and ability to translate research into direct patient care, click here.


  • English


  • American Board of Thoracic Surgery
  • Cardiothoracic Surgery Network
  • Society of Thoracic Surgeons
Additional Resources +
  • Education +


    • University of Chicago
  • Research & Publications +

    Selected Publications

    Title Off-pump Surgery for Giant Right Coronary Artery Aneurysms.
    Date April 2012
    Journal: Journal of Cardiac Surgery

    Title:Surgical and Nonsurgical Complications of a Pig to Baboon Heterotopic Heart Transplantation Model.
    Date January 2011
    Journal:Transplantation Proceedings

    Title:Left Ventricular Pressure Measurement by Telemetry is an Effective Means to Evaluate Transplanted Heart Function in Experimental Heterotopic Cardiac Xenotransplantation.
    Date January 2011
    Journal:Transplantation Proceedings

    Title: Rapid and Dynamic Alterations of Gene Expression Profiles of Adult Porcine Bone Marrow-derived Stem Cell in Response to Hypoxia.
    Date May 2010

    Journal: Stem Cell Research

    Title: Direct Injection of Autologous Mesenchymal Stromal Cells Improves Myocardial Function.

    Date December 2009

    Journal: Biochemical and Biophysical Research Communications


  • Academic Affiliations & Courses +
  • Activities & Honors +


    • Washingtonian Magazine's "Top Doctors" (March 2012).
    • Assistant Professor Cardiothoracic Surgery Northwestern University 1996-2002
    • Associate Professor Cardiothoracic Surgery Northwestern University 2002-2004
    • Adjunct Associate Professor, Johns Hopkins University 2004-present
    • Chief, Cardiothoracic Surgery, NIH Heart Center at Suburban Hospital 2004-present
    • Director, Cardiothoracic Surgery Research Program, National Heart, Lung and Blood Institute, NIH 200
    • One of America's Leading Experts on: Myocardial Ischemia
    • Castle Connolly America's Top Doctors® (2009 - 2014)
  • Videos & Media +
  • Events +
  • Contact & Locations +


    Johns Hopkins Community Physicians at Suburban Hospital
    8600 Georgetown Road
    NIH Heart Center
    Bethesda, MD 20814
    Phone: 301-896-7610
    Appointment Phone: 301-896-7610

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