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Cardiovascular Disease (Heart Disease)
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Mount Sinai Doctors ?
    • Specialties
    • Cardiovascular Disease (Heart Disease)
    • Nuclear Cardiology
    • Cardiology (Heart)
    • Echocardiography
    • Cardiovascular Computed Tomography
    • Language
    • English
    • Hospital Affiliation
    • The Mount Sinai Hospital
    • Phone
    • Mount Sinai Doctors-Brooklyn Heights 929-210-6000
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John Hennecken, MD was born in Manhattan and earned his undergraduate degree from Saint John’s University.  He received his medical degree with honors from S.U.N.Y. Downstate Medical Center in Brooklyn, N.Y. and was elected to the Alpha Omega Alpha honor medical society.  He completed his internship and residency at The Albert Einstein College of Medicine in the Bronx, where he was also a Chief resident. Dr. Hennecken completed his cardiology and interventional cardiology fellowships at Yale University followed by a term of serving on active duty at Brooke Army Medical Center in San Antonio.  Upon his release from active duty, he was appointed Assistant Professor of Medicine at the University of Texas in San Antonio/Audie Murphy VA.  He subsequently accepted an appointment as an Associate Professor of Medicine and Director of the Cardiac Catheterization labs and Interventional Cardiology at the Medical College of Georgia. He has been in private practice since 1995 and has served as Director of the Cardiac Catheterization labs and Chairman of the Department of Cardiology at University Hospital in Augusta, Ga.  Since 2008, he has focused on general and preventive cardiology as well as cardiac imaging. 

Dr. Hennecken has been married to Carol since 1981 and has four children, John, Christina, Kevin and Carolyn.  He enjoys skiing, tennis, and sailing.  He and Carol are happy to be back in New York where two of their children as well as other family and friends are living.


Cardiovascular Computed Tomography
American Board of Clinical Lipidology
Cardiovascular Disease
American Board of Internal Medicine


MD, SUNY Downstate Medical Center

Internship, Internal Medicine
Bronx Municipal Hospital Albert Einstein College of Medicine

Residency, Internal Medicine
Bronx Municipal Hospital Albert Einstein College of Medicine

Fellowship, Cardiology
Yale University