Dr. Chang is a licensed Family Medicine in CA. Graduated in 2008. Medical degree obtained from Western University of Health Sciences. Completed residency training at Westchester General Hospital. Currently practices at Optum Care (Optum Care), located at 55 S Raymond Ave, Alhambra, CA 91801. Dr. Chang specializes in family medicine and primary care.. In addition to English, Dr. Chang speaks Mandarin and accepts new patients.