Since the opening of our first store in Oyster Bay over 4 years ago, Mario's Pizzeria has been serving quality food made with the finest ingredients and following 'Old World' traditional recipes. Currently, with eight locations across Long Island, Mario's Pizzeria expands its service to its customers. Mario's Pizzeria of Plainview is located on Long Island's historic Old Country Road and offers high quality food made with the finest ingredients, personalized service, unsurpassed value and the traditions of long ago in today's convenient world.come on in and join us for a memorable dining experience. We look forward to the opportunity to serve you.