East End Gastroenterology & Hepatology

Mark J. Coronel, MD is a board-certified gastroenterologist practicing in Riverhead & Manorville NY. As a digestive health specialist for nearly 15 years, he sees patients for all digestive conditions. His primary interests include colon cancer screening, pancreatic disease, liver disease, gastroesophageal reflux (GERD) management, PH monitoring studies, inflammatory bowel disease, biliary tract disease, and capsule endoscopy. Dr. Coronel also takes call at Peconic Bay Medical Center. He feels the patient-physician relationship is of vital importance. To that end, he approaches each patient as a unique individual, regardless if their symptom or disease is common or rare.