Davio's Northern Italian Steakhouse | 3,066 followers on LinkedIn. At Davio's, it's all about the guest. | In 1985, at the young and ambitious age of 24, Steve DiFillippo purchased a locally-owned family restaurant called Davio’s on Newbury Street in Boston’s trendy Back Bay. As Boston’s culinary tastes evolved, he transformed the location into a destination. He retooled the menu, the space, the wine list.