We did DE w/ Hummel at SDFC, too! We loved him -- accessible, knowledgable, caring, competent. Best of all, we have 2 beautiful children thanks to them. And a few more embryos left to try with. Definitely worth the travel. They were expert at handling the out-of-state cycle and made it as painless as possible, plus the "vacations" out to SD were not so bad! We weren't in DC at the time, so sorry I can't weigh in on where to do local monitoring.
If you are new to out of state cycling and want to try with your own eggs, check out CCRM outside of Denver, CO and Cornell in NYC. Maybe also NYU in NYC. CCRM is fantastic at handling out of state patients.