I've never had a therapist forward information to my primary physician, even when they've had that information. In fact, I'm fairly certain even my pdoc's information and hospitalization information never was sent to my primary physician because, even though they had that information, I did not request that information be sent to him. That's one of the pieces of information I always fill out when I am admitted: who do I want information sent to. I have it sent to no one. My pdoc is the only person who needs that information, and he is my treating pdoc when I am inpatient (which simplifies things greatly). I've filled in my primary doctor on my psychiatric treatment when I've seen him, particularly as it pertains to meds for obvious reasons, but otherwise he's pretty out of the loop.