i recommend washington fertility center for various reasons:
1. they have clinics at 4 locations in DC metro area
2. they are very organized. they have a plan for each patient after initial consulting. you dont have to keep wondering what to expect. in my case they emailed me my calendar, so i could adjust all my personal programs well in advance
3. they are prompt at answering questions and returning phone calls
4. their waiting times are short. in my case i scheduled all appts at 8 am in the morning. my doctor and the nurses there were never late. if going for usual sonograms i was out by 8:20 am and could make it to work on time
5. dr.gindoff is very good. he is new there. he has a terrific experience and expertise. i dont know about the other doctors there
6. lan and marcella, the nurses are good too
7. costs are more or less the same everywhere (expensive!!). my cycle came to about 13-14K including meds. that included ICSI
good luck!!