Hours Of Operations M & M Grocery New York Uniondale 11553 M & M Grocery Hours of Operation and Location in Uniondale, NY 11553 4.2 - 100 votes 870 Nassau Rd, Uniondale, NY 11553 (516) 483-1670 Get Directions M & M Grocery Hours Category: Grocery & Market Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore UniondaleView More Apparel CoachAvenueJourneys Sports VansUnique Sports Recommend For You Quick Pick Unique Sports Two Brothers Barber Island Barber Shop Mary Kay Cosmetics Hair Gold Beauty Supply Magic Touch Nail Salon Lucky Nails Lucky Nail Ann's Nails