Retirement Services Office is located at 10720 Mount Belvedere Boulevard Building P-10720 Clark Hall 1st Floor , Fort Drum, NY 13602. Retirement Services Office can be reached by their main phone number at (315) 772-6339. Alternatively, you can reach Retirement Services Office by phone at (315) 772-6434. You can also reach Retirement Services Office by phone at +1 (800) 556-9790. The listed DSN line is 772-6339. Visit the Retirement Services Office website by clicking here.