Here are a few for your thoughts:
ClinicalClerk.com (late stage medical student)
DrBun.com, DrBase.com, DrVon.com
FQDr.com, YRDr.com, YUDr.com
VVRX.com
*Q24H.com ( medical lingo for every 24 hours - great to get people to return to your
site every day)
**DocsLounge.com and FullPhysical.com** both likely out of your budget??
Cheers