Colonoscopy Beverly Hills: Dr. Peyton Berookim is an exceptionally caring, friendly physician whom you’ll feel very comfortable with. This board-certified gastroenterologist offers care and treatment for digestive and liver diseases, bloating, constipation, IBS, heartburn, GERD, and abdominal pain. Dr. Berookim provides Colonoscopy services in Beverly Hills and the greater Los Angeles area. Please contact the Gastroenterology Institute of Southern California for more information (310)271-1122 .