Dr. Chang is a licensed Internal Medicine in AZ. Medical degree obtained from St Georges University School of Medicine(Grenada). Completed residency training at Maricopa Medical Center. Currently practices at Valleywise Comprehensive Health Center (Valleywise Comprehensive Health Center), located at 2525 E. Roosevelt St, Phoenix, AZ 85008. Dr. Chang specializes in internal medicine, primary care.. In addition to English, Dr. Chang speaks Mandarin.