Information on GNC in Philadelphia, PA 19137 Outlet Note Regular Brands GNC Pennsylvania Philadelphia 329157 Rating 4.7 based on 97 votes Address 4390 Richmond Street Philadelphia, PA 19137 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