Gastroenterology Institute of Southern California

Peyton P. Berookim, MD, is a double board-certified gastroenterologist and internist. Dr. Berookim specializes in disorders of the digestive system including the liver. These disorders include ulcerative colitis, Crohn’s disease, heartburn, GERD, abdominal pain, bloating, constipation and IBS. Other related services include esophageal and colon cancer prevention.