Information on GNC in Haverhill, MA 01830 Outlet Note Regular Brands GNC Massachusetts Haverhill 327256 Rating 4.7 based on 97 votes Address 2 Water Street Haverhill, MA 01830 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 - Beverly GNC Outlet - Danvers GNC Outlet - Beverly GNC Outlet - Billerica People Also Viewed