Dr. Peng is a licensed Internal Medicine in PA. Graduated in 2017. Medical degree obtained from Case Western Reserve School of Medicine. Completed residency training at University of Pittsburgh. Currently practices at Penn Medicine (Penn Medicine), located at 701 East Marshall St, West Chester, PA 19380. Dr. Peng specializes in internal medicine, primary care.. In addition to English, Dr. Peng speaks Mandarin and accepts new patients.