i call her dr. than her first name...she is a doctor and i'm comfortable with it i don't know what she prefers i never asked. i like the formality of it keeps a safe distance. i go there for her expertise not to make a friend.(but that's my own insecurity issue crap) i think for you to connect with your therapist or p-doc or whatver wherever you go to, they need to make you feel comfortable and if first name basis makes you comfortable than they need to put aside their "title issue ego's"