I would write a letter just like you wrote here, and address it to your doctor, or at his home address, and write confidential on the front of the envelope, and write another identical letter to the admin director of that facility.
The resolution you ask for? A written apology from Nurse Nasty, and that your formal complaint letter be put in her permanent file. If you can address it to your doc's home addy, that would make sure that Nurse Nasty did not intercept it.

That witch is lucky that she didn't pull that crap on 2quilt. She would have already been in the morgue and me in jail.