Dr. Mary S Cheung is a New York state licensed medical doctor, specializing in Gastroenterology. Graduated Magna Cum Laude from SUNY Downstate College of Medicine, completed residency training in Montefiore Medical Center, and completed the Gastroenterology specialist training at North Shore-LIJ. Dr. Cheung currently is working at Northwell Health, located in 600 Northern Blvd #111 Great Neck NY 11021 Please call +1-516-387-3990 to contact. Access cdoc101.com on a desktop computer to view more details. | |||