I've heard outpatient therapists say they don't even want to see records of therapy with past therapists. They want to start fresh and experience the client as they are now without being biased by another T's views. Mental health issues are not as clear cut as cholesterol-levels or appendicitis or gall bladder surgery. Unless you bring it up, chances are your T won't be searching out any past records.

This doesn't necessarily hold if someone has had a number of hospitalizations, court mandated treatment or criminal charges.

If it's voluntary outpatient therapy, or if it's with another agency, you probably have nothing to worry about.