Optum can help identify the cause of your symptoms and provide diagnosis and treatment to help you live your healthiest life. Our board-certified gastroenterologists in Fishkill, NY specialize in treating a range of conditions. These health problems include Barrett's esophagus, diverticulitis, colitis, pancreatic disorders and much more. To help pinpoint specific issues, our facilities provide a range of diagnostic testing, including Bravo endoscopy, Capsule endoscopy, colonoscopy, and genetic testing. Optum accepts most major health plans.