Dr. Zahn is a licensed Gastroenterology in CA. Graduated in 1983. Medical degree obtained from Stanford Medical School. Completed residency training at Montefiore/Einstein Hospitals and fellowship training at University of Michigan. Currently practices at Alhambra Hospital Medical Center (Alhambra Hospital Medical Center), located at 1026 East Las Tunas Dr, San Gabriel, CA 91776. In addition to English, Dr. Zahn speaks Mandarin.