Dr. Ong is a licensed Internal Medicine in CA. Medical degree obtained from Chicago Medical School - Rosalind Franklin University. Completed residency training at Pinnacle Health. Currently practices at Alhambra Hospital Medical Center (Alhambra Hospital Medical Center), located at 925 South Garfield Ave, Alhambra, CA 91801. Dr. Ong specializes in internal medicine and primary care.. In addition to English, Dr. Ong speaks Mandarin and Cantonese.