Dr. Kao is a licensed Internal Medicine in CA. Graduated in 2013. Medical degree obtained from Western University of Health Sciences. Completed residency training at LAC USC Medical Center and fellowship training at Loma Linda University. Currently practices at Optum Care (Optum Care), located at 5581 Alton Pkwy, Irvine, CA 92618. Dr. Kao specializes in internal medicine, primary care.. In addition to English, Dr. Kao speaks Mandarin.