Dr. Singh performed his fellowship in Gastroenterology at Mt. Sinai Services at Elmhurst, NY. He is Board Certified in Gastroenterology and Internal Medicine, and is a member of American College of Gastroenterology, American Society of Gastroenterology, and Endoscopy & American Gastroenterological Association. He is the Director of Endoscopy Brookhaven Memorial Hospital. Dr. Singh has been published in several journals. He is current Chairman of the Department of Gastroenterology at Long Island Community Hospital and serves on multiple committees. He is also Medical Director of Great South Bay Endoscopy Center and President of Brookhaven Gastroenterology Associates.