Information on GNC in Billerica, MA 01821 Outlet Note Regular Brands GNC Massachusetts Billerica 325525 Rating 4.7 based on 97 votes Address 467 Boston Rd Billerica, MA 01821 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 - Burlington GNC Outlet - Bedford GNC Outlet - Concord GNC Outlet - Acton People Also Viewed