1. Local Social Security Bureau: For medical insurance reimbursement and illegal operation of designated medical institutions, you can complain to the local social security bureau (social insurance fund management center under the Human Resources and Social Security Bureau).
2. Medical Insurance Bureau: Many regions have set up special medical insurance bureaus, which are responsible for the overall management of medical insurance affairs. If there are problems, they can directly report them to the local medical insurance bureau.
3. Health and Wellness Committee: For medical insurance problems related to medical services and medical quality, you can complain to the local health and Wellness Committee.