Dr. Thomas A. Ullman is a gastroenterologist in Scarsdale, New York and is affiliated with multiple hospitals in the area, including Mount Sinai Hospital, Montefiore Einstein and New York GI Center. He received his medical degree from Weill Cornell Medicine and has been in practice for more than 20 years. Dr. Thomas A. Ullman has expertise in treating colonoscopy, upper gi endoscopy, inflammatory bowel disease (ibd), among other conditions - see all areas of expertise. Dr. Thomas A. Ullman accepts Medicare, Aetna, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Thomas A. Ullman is highly recommended by patients.