1. Inquire through the social security card service hall or official website.
2. Inquire through the hospital registration system.
3 to the county medical insurance, social security, health and other departments to apply for inquiries or find relevant documents.
4. Inquiries about the government service network.
5. If you can't inquire, you can consult the local medical insurance or social security department.
The above steps are for reference only, and the specific steps can be adjusted according to your region and relevant policies.