Japan has implemented a significant change in its health insurance system by halting the issuance of new health insurance cards and integrating this information into the national My Number identification cards. The transition, which took effect December 2, 2024, marks a major step in the country’s digitalization efforts and follows Japan’s broader push toward digital transformation in government services.
The My Number card, introduced in 2016, contains a 12-digit identification number and includes the holder’s name and photo. This digital ID system has already gained international recognition, becoming the first non-US identity credential to be supported in Apple’s Wallet app. Under the new system, these cards will now carry health insurance data, allowing medical institutions to access cardholder information, including medical prescription records, with patient consent.
When accessing medical services, cardholders must scan their My Number card using a card reader at medical facilities. Identity verification can be completed either through a four-digit code or facial recognition, leveraging the same biometric authentication technology that has been increasingly adopted across Japan’s public and private sectors.
The government has established a transition period, allowing existing health insurance cards to remain valid until December 1, 2025. This grace period applies to cards both with and without printed expiration dates. However, these cards become invalid if the holder’s medical insurance coverage changes due to circumstances such as job changes or relocation.
For situations where the My Number card system experiences technical issues, alternative verification methods are available. Individuals can present a separate notice of medical insurance enrollment, which is provided by their health insurance association or local municipal government. This information can also be accessed through the My Number smartphone application, which has been developed as part of Japan’s comprehensive digital infrastructure modernization.
As of October’s end, 77.47 million people, representing 82 percent of My Number card holders, have registered their cards for use as health insurance cards. This high adoption rate reflects the success of Japan’s digital transformation initiatives, which have been supported by various government agencies and technology partners. Residents who have not applied for My Number cards or registered them for health insurance purposes by the expiration date will receive new certificates, valid for up to five years and subject to renewal.
The integration of health insurance information into My Number cards is part of Japan’s broader initiative to digitalize social security and taxation systems, following similar successful implementations in other Asian markets. This digital transformation aims to enhance administrative efficiency and data security while reducing reliance on physical documentation, aligning with the country’s vision for a more connected and technologically advanced society.
Sources: Kyodo News, Japan Today, Vietnam News, Jiji Press
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