Dr. Gu is a licensed Internal Medicine in CA. Medical degree obtained from National Taiwan University College of Medicine. Currently practices at Puente Hills Medcal Center (Puente Hills Medcal Center), located at 1850 S. Azusa Ave, Hacienda Height, CA 91745. Dr. Gu specializes in internal medicine, primary care.. In addition to English, Dr. Gu speaks Taiwanese and Mandarin.