I've always told my staff that they can call me by my first name if there are no patients around.
But they don't.
It's always "Dr. P".
I call fellow M.D.s by their first names when I work with them.
But I call my own doctor "Doctor T".
I'd feel weird calling him by his first name.
Outside of the office, I don't care what people call me.
"Mr." is fine.
It would be acting like a dick if I insisted people call me "doctor".
I am actually prouder of the Mrs and mom title than the Dr title. I always have staff call me by my first name unless around patients. Some of the older nurses just can’t bring themselves to call me by my first name but eventually I win them over.... We work as a team. My last name is quite difficult for my elderly patients who either call me Dr K or Dr my first name. I find those most insistent in the titles are the least secure and most incompetent or they are just plain jerks