Dr. Peter Ells is a gastroenterologist in East Setauket, New York and is affiliated with multiple hospitals in the area, including Albany Medical Center and Northport Veterans Affairs Medical Center. He received his medical degree from Tufts University School of Medicine and has been in practice for more than 20 years. Dr. Peter Ells has expertise in treating colonoscopy, upper gi endoscopy, gastroenteritis, among other conditions - see all areas of expertise. Dr. Peter Ells accepts Medicare, Aetna, Blue Cross - see other insurance plans accepted. Dr. Peter Ells is highly recommended by patients.