Let it go. You were her boyfriend, not her patient. Any actions coming from you at this point are a result of your failed relationship with her. It would be an abuse of the system to file a complaint on her, and the act of a jilted boyfriend, not a mistreated patient. In the end, it would simply reflect poorly on you. You arent really asking how to file a complaint on a doctor, you are asking how to file a complaint on an exgirlfriend. Unethical--please let it go.