Wen, Zhang DOAttending PhysicianInternal Medicine Education: University of New England College of Osteopathic MedicineMain Office:484-884-9677 Lehigh Valley Health 2545 Schoenersville Rd #350 Bethlehem, PA 18017 Office Hours: Monday - Friday: 7 a.m. ¨C 8 p.m. Saturday: 9 a.m. ¨C 5 p.m. Certifications:American Board of Internal Medicine, Internal Medicine