HIPAA is the Health Insurance Portability and Accountability Act and is what is in place to keep mental health professionals from discussing cases.
Ethical therapists like myself take this seriously. Things that are private:
The fact that you are a client.
Particulars of a case.
Particulars of a client.
Length or type of services.
Identifying information such as name, location, or details that may identify a client.
Ethical therapist can discuss a case with their peers without their peers having any clue as to whom the case is about. The less details given, the better. Only the details needed to get help with a case are discussed, and a clear goal in the consultation is established.