Find a Physician » Physician Finder » Richard Marquis Download | Print. Richard Marquis, MD. Beth Israel Deaconess Healthcare-Crown Colony. 700 Congress Street, Suite 103, Quincy, MA 02169 ... MySite Patient Portal. Directions. Community Benefits. Make a Donation. Beth Israel Deaconess Hospital–Milton | 199 Reedsdale Road Milton, MA 02186 ....