Dr. Wan is a licensed Internal Medicine in PA. Graduated in 2012. Medical degree obtained from Sichuan, North Sichuan Medical College in China. Completed residency training at Hackensack University Medical Center. Currently practices at PennState Health | (PennState Health |), located at 500 University Ave, Hershey, PA 17033. Dr. Wan specializes in internal medicine, primary care and hospital medicine.. In addition to English, Dr. Wan speaks Mandarin.