Gastroenterological diseases affect the mouth, esophagus, stomach, small and large intestine, which work together to move food along the digestive tract, while absorbing nutrients and discarding waste products. Diseases of the hepatobiliary system refer to the liver, gall bladder and bile ducts – organs that are involved with the production, storage, transport and release of bile, a secretion that prepares fats for further digestion.
Whether you have a complex digestive disorder like gastroesophageal reflux disease (GERD), a common disorder like constipation or heartburn, a precancerous condition like Barrett’s esophagus, or you’re a woman who would feel more comfortable having a female gastroenterologist perform a colonoscopy, the Digestive Disorders Institute at Stony Brook is where you want to be.
Comprehensive and Innovative Services
As the only academic medical center on Long Island, we have the unique ability to connect and apply our groundbreaking medical research and scientific discoveries to our patient care. Using the latest technology and cutting-edge techniques, we perform many advanced diagnostic tests and procedures. Patients and outpatients alike are treated with respect and compassion by a team of renowned physicians whose joint goal is to provide the safest and most effective treatment and whose expertise spans all forms of gastroenterological and hepatobiliary diseases.




