A Happy Tummy Means a Happy Life : What better way to start a new year than with a clean bill of health. At the Gastroenterology Institute of Southern California, you can be assured that you are receiving the latest and greatest in gastrointestinal healthcare. Peyton P. Berookim, MD is a double board-certified gastroenterologist with a commitment to making your life better. Don’t let constipation, bloating, and heartburn debilitate your life any longer. Through state-of-the-art diagnosis and procedures, the team at the Gastroenterology Institute of Southern California will work to pinpoint the root of your problem with care and concern. Dr. Berookim knows how precarious issues of the digestive track can be, and his vast experience is exemplified by the satisfaction of his loyal patients.