Dr. William Hamstra is a certified surgeon with a specialty in traditional and robotic laproscopic surgery. He graduated medical school from the Oklahoma State University College of Osteopathic Medicine in Tulsa. He also completed surgical residencies at Oakland Children's Hospital, San Francisco General Hospital and UCSF Medical Center, all located in San Francisco. He is a member of the American Academy of Surgeons and recipient of the 2010 Parents' Choice award and the 2010 Compassionate Doctor Recognition.