The physicians at Billings Clinic’s department of gastroenterology specialize in the diagnosis and treatment of digestive tract diseases, and care for conditions of the colon, gallbladder, esophagus, liver, pancreas and stomach. Billings Clinic's board-certified gastroenterologists provide care to patients both in the hospital and through outpatient procedures, such as colonoscopy to screen for colon cancer and upper gastrointestinal endoscopy to check for cancer of the esophagus, at Billings Clinic Hospital. Our gastroenterologists care for patients with the following conditions: Crohn's Disease Cirrhosis Colon cancer screening and prevention Diagnosis and management of complicated and/or advanced liver disease including transplant referral Diverticulitis Esophageal disease Gastroesophageal Reflux Disease (GERD) Inflammatory bowel disease Biliary/pancreatic disease Ulcerative colitis Women's issues in gastroenterology The following screening tests and procedures are used to treat gastrointestinal conditions: 24 Hour pH testing Colonoscopy Diagnostic and therapeutic endoscopic retrograde cholangiopancreatography (ERCP) Endoscopic hemostasis for acute GI bleeding Endoscopic coagulation therapy Endoscopic treatment of gastroesophageal reflux disease (GERD) Esophageal manometry Flexible sigmoidoscopy Laser endoscopy Placement of biliary stents for carcinoma Therapeutic and diagnostic endoscopy of all types Upper Gastrointestinal Endoscopy Talk to your primary care physician to determine if you should see a gastroenterologist. If you don't have a primary care physician, the registered nurses at Billings Clinic HealthLine can assist you in finding one to meet your needs.