Digestive issues are often ignored or self-treated, but persistent symptoms may signal deeper health problems. A gastroenterologist is a doctor who diagnoses and treats conditions affecting the digestive system, including the stomach, intestines, liver, pancreas, and esophagus. What Does a Gastroenterologist Treat? A gastroenterologist manages conditions such as: Acid reflux (GERD) Irritable bowel syndrome (IBS) Inflammatory bowel disease (Crohn’s disease...