Looking for a top-rated gastroenterologist near you serving the Johns Creek, Duluth, and greater suburbs of Atlanta.? Merus Gastroenterology specializes in treating gastrointestinal diseases, including abdominal pain, bloating, GERD, heartburn, acid reflux, and more. Schedule your visit with Best Gastroenterologist and get relief from abdominal pain, bloating, colonoscopy screening, constipation, gastroesophageal reflux disease (GERD)