My old T I called by her first name. She always called herself by her first name in email but for a long time I did not call her anything, did not address her at all, like others here. Then one day I got brave and asked her if it was okay if I called her by her first name. She said it was okay so that's what I called her from then on.

My current T, I don't address at all. In emails, I call her Dr. XXX but in person I do not call her anything. She is more formal than my last T, so I imagine she would want me to call her Dr, but somehow that is too formal. Also I have somewhat of a phobia of doctors (physicians) so something about calling her Dr (even though it's a different kind of doctor) would make me feel more afraid of her. If that makes sense?