Many pdocs really aren't trained extensively in therapy anymore. They defer the in the trenches therapy work to people who have had more intensive training in therapy. That has always been my experience and it works well. Sometimes my therapist and pdoc consult about my case if the need is there.

I would also suspect many insurance companies would be hesitant to pay the exhorbatant fees it would cost to have a medical doctor do an hour's worth of therapy each week.