General Info

Mark J. Coronel, MD is a board-certified gastroenterologist practicing in Manorville NY, and has a 2nd office in Riverhead NY. As a digestive health specialist, 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 is the director of endoscopy 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. Call our office for expert GI care.