Stone Springs Family Medicine, An Inova Partner. Please note: In observance of the Thanksgiving holiday, we will be closed on November 25, 2021. 24430 Stone Springs Blvd #400 Dulles, VA 20166. 24430 Stone Springs Blvd #400 Dulles VA 20166. Get Directions Phone: 703-766-5040 703-766-5040 Fax: 703-766-5047. Open • Closes at 5PM..