It's preferred by my pdoc, but not required. Currently though, my pdoc wants me meeting with my therapist regularly, especially on weeks where my pdoc does not see me.

I used to have a pdoc who made everyone sign a policy that she would not prescribe benozodiazepines for someone who is not seeing a Therapist weekly/biweekly. I guess she did not follow this at all, because she used to give me 90 day prescriptions of Klonopin on a regular basis without ever asking me about therapy.