Dr. Jonathan D. Marmur

Interventional Cardiology

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Primary Contacts

SUNY Downstate Medical Center
450 Clarkson Avenue
Room A2-523 (cardiac cath lab)
Brooklyn, NY 11203-2098
Cell: 917-885-8854 more contact information

Practice & Experience
Coronary Intervention
Peripheral Vascular Intervention
ASD and PFO Closure
Cardiology Expert Witness
Current appointments
State University of New York (SUNY) Health Science Center at Brooklyn  
Professor of Medicine  
Director of Cardiac Catheterization Laboratory and Interventional Cardiology  
Director of Interventional Cardiology Fellowship Program  
Director of Clinical Research, Center for Cardiovascular and Muscle Research  
Medical Expert Witness

As a medical expert witness in cardiology, Dr. Marmur supports legal counsel in selected cases. He provides objective opinions and testimony based on his experience as a high volume practitioner of percutaneous coronary intervention and as an internationally recognized expert in atherosclerosis and blood clotting.

His expert witness services support the medicolegal process in all its phases, including evaluating whether the standard of care was met or breached, testifying in court, or assessing damages based on causation and presumed longevity.


Recognized by professional colleagues as an expert in his field, Dr. Marmur is a frequently invited speaker at national and international conferences. He has served on the editorial boards of the Journal of the American College of Cardiology, and Cardiovascular Revascularization Medicine.

Dr. Marmur has been quoted in The New York Times and other prominent newspapers.
Dr Marmur has appeared on numerous TV interviews & webcasts such as TheDoctorsChannel.com
Copyright 2006 © Dr. Jonathan D. Marmur. All rights reserved.