Medical: Where can I go to get an idea of what our psychologists/psychiatrists do in the military?

Hey folks,

I'm looking to ask the community for a favor. Does anyone know of any Army medical units with a psychology/psychiatry wing in or around Arizona? I'm investigating an interest in counseling for joes and janes with PTSD/mTBIs, and I'd like to sit down with someone actually doing the job so I can get an idea of everything involved. I figure I may as well use some of this fancy gub'ment money for school at some point before someone decides to take it away.

If it's a reserve unit, that's great, I'm more than happy to get gussied up for a weekend, burn my own gas, and get my own hotel for a weekend.