The curriculum is very dependent on the school you attend. I can speak for CPMS (DMU).
3rd Year
-Class work in the areas of trauma, dermatology, community health, basic surgical skills, and PBLs
-Rotations are with various faculty members and included the Tower clinic, Methodist wound care center, Broadlawn's medical center (you will get a internal med rotation here as well as podiatry), Greenfield hospital (rural), Pella hospital (rural), and the VA. You will also scrub surgical cases w/ what the faculty member you are rotating with. The whole time you will be in Des Moines.
4th year
-The 4th year is completely up to the student. We have 3 cores (4 months each). You must spend 1 core at a residency program and you must do 1 private practice rotation w/ whomever you choose. The other 7 months are up to you; you have 1 vacation month if you want it. But you have no obligation to the school or an affiliate hospital therefore you can do you rotations anywhere you want.