Honestly I think they are all about the same. I've been in MD and VA and there is no difference.

I must have crappy insurance (BCBS) because it costs me 2x to go to a hospital based practice vs stand alone. I used to go to Sibley but now I go to WRA. I have to do the 6m mamo/MRI combo. I like the Chevy Chase and Parc Potomac locations. They've been fine, although last time there was a long wait for my appointment - the waiting room was packed. usually it's been pretty efficient.