A lot of PCP's wouldn't be comfortable writing that many psych scripts, but it may be worth a try. I think if push comes to shove, your best bet would be calling the inpatient psychiatrist.
If Dan had a social worker when he was inpatient, he/she may be able to recommend a pdoc and greases some wheels for you if the therapist can't help.
I had a lot of problems when I was discharged from the psych ward the first time. I was in insurance/pdoc limbo too, so I can relate to the difficulties you are having. I'm thinking good thoughts for you all, Donna