Hours Of Operations Discount Mart Washington D.C. Washington 20018 Discount Mart Hours of Operation and Location in Washington, DC 20018 4.1 - 128 votes 1311 Rhode Island Ave NE Unit B, Washington, DC 20018 (202) 388-1006 Get Directions Discount Mart Hours Category: Apparel Grocery & Market Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore WashingtonView More Apparel CostcoMarshallsTJ MaxxRoss Dress for LessBig Lots Sports CostcoTargetNew BalanceLA FitnessNike Jewelry CostcoMarshallsLord & TaylorSaks Fifth AvenueChico's Recommend For You Express Alterations Intermix Silpada Designs Travel Traders Bed Bath & Beyond Crestwood Florida Power & Light Pepco Duke Energy Entergy