Use of a My Number Card as a Health Insurance Card
The My Number Card can be used as a Health Insurance Card!
Purpose of Adopting a Social Security and Tax Number System
The Social Security and Tax Number System assigns an individual number to every person with a certificate of residence and uses personal information that exists across multiple government agencies to confirm data about an individual in order to efficiently manage data in social security, tax, and disaster recovery matters.
The Japanese government adopted this social security and tax number system with the aim of achieving a fair and just society, enhancing public convenience, and developing administrative efficiency.
(Source: Individual number publicity materials created by the Cabinet Secretariat and Cabinet Office)
Use of a My Number Card as a Health Insurance Card
The My Number Card is a plastic card with an IC chip indicating the name, address, birth date, and gender with a picture of the individual’s face on the front and the individual number (My Number) on the back.
Insured persons have been able to use their My Number Card instead of their health insurance card when visiting a hospital or other healthcare provider since March 2021.
Insured persons need to register this use of a My Number Card on the Mynaportal website.
Please refer to the links below for more information.
Handling of Individual Numbers at the EY Japan Health Insurance Society
Personal information which includes individual numbers is personally identifiable information and requires even more strict handling than personal information. The law restricts personally identifiable information from being used or disclosed even with the consent of an individual.
Health insurance societies are designated as persons in charge of processes using individual numbers and may only use individual numbers within the administrative scope stipulated by the Act on the Use of Numbers to Identify a Specific Individual in the Administrative Procedure.
Detailed Information on the Social Security and Tax Number System
Weekdays
9:30 A.M. to 8:00 P.M.
Weekends and holidays
9:30 A.M. to 5:30 P.M.
*The call center is open 24 hours a day, 365 days a week for request to stop use of a lost or stolen My Number Card.
- Inquiries about My Number Cards
050-3818-1250 - Other Inquiries
050-3816-9405