It cost me over $1000 for a license ($500 license fee, $500 app fee) and possibly $390 for my DEA. I'll have to talk to my program director (who incidentally wrote the CORD statement against moonlighting) about whether he'll pick that up. (Doubt it.) So it's $1400 just to get started, plus possibly credentialing fees. The two gigs I'm considering aren't the highest paying, one is $55 an hour to do easy urgent care, the other is $50 an hour to sleep and babysit a vent farm. So it will literally take me days to make that money back, 2-3 days to be exact. It is possible to get ED gigs around here for about $85 an hour, but they're not as convenient, have higher risk, and require you to sell out your specialty. (See AAEM statement on moonlighting)