Information on GNC in Brooklyn, NY 11203 Outlet Note Regular Brands GNC New York Brooklyn 325712 Rating 4.7 based on 97 votes Address 4123 Avenue D Brooklyn, NY 11203 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 - Brooklyn GNC Outlet - Brooklyn GNC Outlet - Brooklyn GNC Outlet - Brooklyn People Also Viewed