Information on GNC in Levittown, NY 11756 Outlet Note Regular Brands GNC New York Levittown 327891 Rating 4.7 based on 97 votes Address 3131 Hempstead Turnpike Levittown, NY 11756 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 - Baldwin GNC Outlet - Albertson GNC Outlet - Auburndale GNC Outlet - Astoria People Also Viewed