Information on GNC in Huntingdon, PA 16652 Outlet Note Regular Brands GNC Pennsylvania Huntingdon 327454 Rating 4.7 based on 97 votes Address 9635 William Penn Highway Huntingdon, PA 16652 Phone Hours may vary in different stores. For accurate hours, please contact each store directly. Suite643 Hours may vary in different stores. For accurate hours, please contact each store directly. Nearby GNC Outlet GNC Outlet - Altoona GNC Outlet - Altoona GNC Outlet - Altoona GNC Outlet - Bellefonte People Also Viewed