This is Lisa Edelstein's fan mail address according to the incredible House site "House-Online.org" (http://house-online.org/cast_lisaedelstein.htm). So if you want to send fan mail to Lisa your best bet is to direct it to:

Lisa Edelstein
"House, M.D."
Heel and Toe Films
10201 West Pico Boulevard
Bldg 89, Rm 230
Los Angeles, CA 90035
USA

Please don't send your Lisa letters to me, as I really, truly am not her... Sorry to disappoint you... trust me, I'm disappointed as well! ;-)

Big thanks to House-Online.org!