Information on GNC in Philadelphia, PA 19143 Outlet Note Regular Brands GNC Pennsylvania Philadelphia 329123 Rating 4.7 based on 97 votes Address 5214-30 Baltimore Avenue Philadelphia, PA 19143 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 - Philadelphia GNC Outlet - Philadelphia GNC Outlet - Philadelphia GNC Outlet - Philadelphia People Also Viewed