Inova Diabetes Center – Fair Oaks 3580 Joseph Siewick Dr #203 Fairfax, VA 22033 3580 Joseph Siewick Dr #203 Fairfax VA 22033 Phone: 877-511-4625 Get Directions See Location Details Schedule Sun Closed Mon 8:00AM-5:00PM Tue 8:00AM-5:00PM Wed 8:00AM-5:00PM Thu 8:00AM-5:00PM Fri 8:00AM-5:00PM Sat Closed