From Baltimore:
I-95 South towards Washington
I-495 West/Capital Beltway via exit 27 towards Silver Spring
Merge onto Rockville Pike/MD-355 North via exit 34 toward Wisconsin Avenue/Bethesda/Rockville
Merge right onto Randolph Road/MD-183.
Turn Left onto Parklawn Drive
Turn Left onto Wilkins Avenue
12230 Wilkins Avenue is on the left.

From DC/Arlington/Alexandria:
George Washington Memorial Parkway North toward McLean/I-495/Maryland
Merge onto I-495 North/Capital Beltway toward Maryland
Stay Left to I-270 Spur North via exit 38 toward Rockville/Frederick
Take Democracy Blvd East, Exit 1 toward MD-187 Old Georgetown Road
Merge onto Democracy Blvd.
Turn Left onto MD-187N Old Georgetown Road
Turn Left onto Rockville Pike/MD-355 North
Merge right onto Randolph Road/MD-183
Turn Left onto Parklawn Drive
Turn Left onto Wilkins Avenue
12230 Wilkins Avenue is on the left.

From Frederick/Upper Montgomery County:
I-70 to
I-270 South toward Washington
Keep right to take 1-270 Local South via exit 8 toward Shady Grove Road/Local Lanes
Take the Montrose Road East Exit 4A
Merge onto Montrose Parkway
Stay Straight onto Randolph Road/MD-183
Turn Left onto Parklawn Drive
Turn Left onto Wilkins Avenue
12230 Wilkins Avenue is on the left.