Affiliated Hospitals Northern Westchester Hospital 400 East Main Street Mt. Kisco, NY 10549 (914) 666-1200 Vassar Brothers Medical Center 45 Reade Place Poughkeepsie, NY 12601 (845) 454-8500 Ambulatory Surgery Center of Westchester 34 South Bedford Road Mt. Kisco, NY 10549 (914) 244-6789