Gastroenterology

Dr. Keerthi Shah is a gastroenterology fellow whose interests include obesity and nutrition.

Dr. Janese Laster is a Gastroenterologist currently practicing in Washington, DC. She completed both Internal Medicine residency and Gastroenterology fellowship training at Georgetown University Hospital. She then completed both a Nutrition and Bariatric Endoscopy Fellowship programs. She is now quadruple board certified in Internal Medicine, Gastroenterology, Obesity Medicine, and Nutrition. She is the owner of Gut Theory Total Digestive Care, which is an all-inclusive weight management practice to include evidence based nutrition care, weight loss...

Dr. Margarita (Rita) German is a faculty member in the Division of Gastroenterology and Hepatology within the Department of Medicine, and Associate Program Director of the Transplant Hepatology Fellowship. She is a member of the American Association for the Study of Liver Diseases and American Society of Transplantation and is involved in training medical students and residents. Dr. German’s clinical interests focus on general hepatology and transplant hepatology, including caring for patients with advanced liver...

Dr. Madhulika (Mika) Varma, chief of colorectal surgery at UCSF Medical Center, specializes in diseases of the colon, rectum and anus. Her areas of expertise include colorectal and anal cancer, inflammatory bowel diseases such as ulcerative colitis and Crohn's disease, and pelvic floor disorders. She also is a specialist in treating many of these diseases using laparoscopic (minimally invasive) surgical techniques. Dr. Varma is director of the Center for Pelvic Physiology, which evaluates patients with...

Dr. Rouillard was born in Euclid, Ohio and is a graduate of Stanford University with a Bachelor of Science degree in Biology, with honors. She obtained her Doctor of Medicine from Stanford University, where she taught Human Anatomy and performed research in Immunology. She completed her internship and residency at University of Texas, Southwestern, Parkland Memorial Hospital and then her fellowship in Gastroenterology at the University of California, San Francisco, with an interest in liver...