Information on GNC in Baltimore, MD 21225 Outlet Note Regular Brands GNC Maryland Baltimore 325350 Rating 4.7 based on 97 votes Address 5804 Ritchie Highway Baltimore, MD 21225 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