Denny's Address: 1239 National Hwy, Lavale, MD 21502 Phone: (301) 729-6600 Cuisine: Diner Restaurants, Foods-Carry Out, Diner, Denny's Other Businesses: Grand China Buffet Inc at 1230 National Hwy, Lavale, MD 21502 Bob Evans Restaurant at 1203 National Hwy, Lavale, MD 21502 Mariner Finance at 1221 National Hwy, #A, Lavale, MD 21502 Wendy's at 1224 National Highway, Lavale, MD 21502