2. Contact the department that handled the medical insurance at that time to inquire;
3. You can bring your ID card to the business handling hall of social insurance agencies in various districts for enquiry. The medical insurance card is special, mainly using the personal ID number as identification information, including personal information, account fees, consumption and other information. The 8-digit card number on the medical insurance IC card is the personal number of the social security account. The medical insurance card number (medical insurance number) is the unique number of a medical insurance participant determined by the medical insurance bureau. The medical insurance card stores detailed information such as personal ID number, name, gender, account payment and consumption.