Information on GNC in Islandia, NY 11749 Outlet Note Regular Brands GNC New York Islandia 327517 Rating 4.7 based on 97 votes Address 1968 Veterans Memorial Hwy Islandia, NY 11749 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 - Albertson GNC Outlet - Baldwin GNC Outlet - Auburndale GNC Outlet - Ardsley People Also Viewed