Information on GNC in Sayville, NY 11782 Outlet Note Regular Brands GNC New York Sayville 329764 Rating 4.7 based on 97 votes Address 101 Main Street Sayville, NY 11782 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