I might get flack for saying this and if I'm wrong please correct me.
While I was a medstudent at an MD program (foreign medschool but rotations in the US), several of my friends and colleagues that were DOs were able to do their rotations in hospitals with psych units without an attached residency program. MD programs required they be attached to a residency program.
If this is still going on, I would have to say that this puts MD programs in a better position. Let's make this clear. I've said this several times, I do not believe that DOs should be considered lesser vs MDs. I do not like the elitism that pervades several aspects of medicine.
It's pretty much obvious why being in a rotation that's attached to a formal residency program would be better. There'd be an organized didactic/lecture schedule, residents can teach medstudents, and shadowing an attending is usually the student not doing anything other than watching someone do their work with little if any interaction.
I just talked to a DO student a few days ago and he told me that this policy hasn't changed. My immediate response was that if there was anything I could do to get DOs at his program to rotate where I'm at I'd like to do something to help out because I didn't think their current situation was up-to-par.
Several DO programs are already in a situation where they are in schools in the midwest where's there's already a serious shortage of psychiatrists making it even harder to get one willing to teach students.
If there's any MD programs that do not have students rotate in a hospital without an attached residency let me know because my current understanding is there has to be a residency.