Dr. Jeng is a licensed Internal Medicine in CA. Graduated in 2007. Medical degree obtained from University of Illinois College of Medicine at Chicago. Completed residency training at LAC+USC Medical Center. Currently practices at Aaron I Lun Jeng MD MPH (Aaron I Lun Jeng MD MPH), located at 116 E Broadway, Glendale, CA 91205. Dr. Jeng specializes in internal medicine, primary care.. In addition to English, Dr. Jeng speaks Taiwanese and Mandarin.