The social security card number written on the registration form.

The social security card number is not only the medical insurance card number, but also your own ID number. Social security card number is different from social security card number. The medical insurance card number used when the hospital makes an appointment for medical treatment is also your social security card number. No, you need a card to register for payment. The first social security card is your insurance certificate, which is mainly used to inquire about the participation and payment of various insurances. After participating in the basic medical insurance, you can use the social security card to use the medical insurance personal account in designated hospitals and pharmacies. Second, you can check with the Social Security Bureau or check online. Third, include the types of insurance you participate in. General units should participate in basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance and maternity insurance.

People's Republic of China (PRC) social insurance law

Article 4 Employers and individuals in People's Republic of China (PRC) shall pay social insurance premiums according to law, and have the right to inquire about payment records and personal rights and interests records, and ask social insurance agencies to provide social insurance consultation and other related services. Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.

Seventy-fourth social insurance agencies through business handling, statistics, investigation and other means to obtain the data needed for social insurance work, the relevant units and individuals should provide timely and truthful.

The social insurance agency shall establish a file for the employer in a timely manner, completely and accurately record the social insurance data such as personnel's participation in social insurance and payment, and properly keep the original vouchers for registration and declaration and accounting vouchers for payment and settlement.

The social insurance agency shall timely, completely and accurately record the individual's personal rights and interests such as social insurance payment, employer's payment and social insurance benefits, and regularly send the personal rights and interests records to me free of charge.

Employers and individuals can inquire and check the records of payment and social insurance benefits from social insurance agencies free of charge, and ask social insurance agencies to provide social insurance consultation and other related services.