I see clients at my office in Chevy Chase/Friendship Heights:

5100 Wisconsin Avenue
Suite 300
Washington, DC  20016

The office building is above a neighborhood landmark (Rodman's grocery store). 

By Metro/Bus:  The office is located 1 ½ blocks south of the Friendship Heights Metro Station (Red Line).  

By Car:  Free two-hour street parking is available on Garrison Street and other nearby streets.  Parking also is available in the lot behind the building (accessible off of Garrison Street); you can validate your parking and receive a discount through Rodman's grocery store).