Bachelor’s Degree – Binghamton University
Medical Degree – American University of the Caribbean School of Medicine
Internship – Winthrop University Hospital
Residency – Winthrop University Hospital, Chief Resident
Fellowship – NYU Winthrop Hospital
Board Certifications – Gastroenterology, Internal Medicine
Dr. Marshak is an active member of the American College of Gastroenterology. He is a diplomate of the American Board of Internal Medicine and is board certified in both internal medicine and gastroenterology. He is published in multiple peer-reviewed medical journals. He has also given presentations at both national and regional medical conferences.
Dr. Marshak lives on Long Island with his wife and daughters. He is an avid sports fan who enjoys hockey and football.
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