As a hospitalist, you can moonlight at some VA hospitals for $200-$250/hr in the ICU at night. At some places you can work in the ER for the same, and it's basically urgent care. Used to work with those guys in residency. All they did was sleep and transfer patients out. 1)VA ICU is always on diversion 2) not real ICU patients 3) you can always transfer them to the closest hospital for reasons of understaffing because there is not support at night for any specialty and you can't call anyone in if you need them. Also all non VA hospitals love to accept the patients because of VA reimbursement.
Other close second is being a hospitalist at the VA where you can refuse to admit from the ER for almost any reason and have the ER transfer, and on top of that you have like 2-8 patients a day as a rounder.
Otherwise, you might be working for your paycheck.