Information on Ross Stores in Gaithersburg, MD 20877 Outlet Note Regular Brands Ross Stores Maryland Gaithersburg 1702704 Rating 4.6 based on 104 votes Address 215 N Frederick Ave Gaithersburg, MD 20877 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. People Also Viewed