Dr. Johnson's office is located in suite 312 within the Lansdowne Office Park next to Loudoun Hospital Center on the Lansdowne Campus in Leesburg, VA. Turn onto Lansdowne Boulevard from route 7. Proceed to make the first right turn onto Riverside Parkway. Then make the first left turn onto Deerfield Ave. 19455 Deerfield Ave is the first building on the left side of the street. We are in Suite 312.