here in NY if you file a grievance/complaint about a hospital or other mental or physical health agency it is automatically officially investigated whether the person complaining wants an investigation or not..

where to do it....each location /state is different

here in NY complaints about hospitals are sent to and dealt with at the state health department. then they send out state health department inspectors that investigate the complaint to make sure the hospital is following state guidelines.

here in NY if a person has a complaint about a treatment provider at a hospital the complaint goes to the states ethics board that type of treatment provider...example complaints about a medical doctor goes to the office of professional conduct, a complaint about a mental health treatment provider that works in a hospital here in NY goes to the NY state office of mental health

your treatment providers can tell you what the complaint procedures are in your location.