Sunguk Jang, MD, is a Staff Physician in the Department of Gastroenterology and Hepatology at Cleveland Clinic's main campus. Dr. Jang is board-certified in gastroenterology and internal medicine. Dr. Jang's interests include Barrett's esophagus, pancreatic and biliary disease, colon cancer screening, endoscopic ultrasound of esophageal, gastric and pancreatic disease, and capsule endoscopy.