Dr. Gary B. Sinensky is a gastroenterologist in Amsterdam, New York and is affiliated with multiple hospitals in the area, including St. Mary's Healthcare-Amsterdam, Albany Stratton Veterans Affairs Medical Center and Marshfield Medical Center Professional Services. He received his medical degree from Albert Einstein College of Medicine of Yeshiva University and has been in practice for more than 20 years. Dr. Gary B. Sinensky has expertise in treating colonoscopy, upper gi endoscopy, gastroenteritis, among other conditions - see all areas of expertise. Dr. Gary B. Sinensky accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted.