Information on GNC in Baltimore, MD 21222 Outlet Note Regular Brands GNC Maryland Baltimore 325362 Rating 4.7 based on 97 votes Address Merritt Park s/c, 1762 Merritt Blvd. Baltimore, MD 21222 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 - Baltimore GNC Outlet - Baltimore GNC Outlet - Baltimore GNC Outlet - Baltimore People Also Viewed