Information on GNC in Baltimore, MD 21236 Outlet Note Regular Brands GNC Maryland Baltimore 325370 Rating 4.7 based on 97 votes Address 9708 Belair Road Baltimore, MD 21236 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