Phelps Medical Associates is a group practice with 1 location. Currently, Phelps Medical Associates specializes in Family Medicine and General Practice with 1 physician. Phelps Medical Associates Office Locations. Phelps Medical Associates. 11 Ashford Ave Fl 2 Dobbs Ferry, NY 10522 (914) 478-1384. Monday : 10:00 AM - 7:00 PM:.