Applying to Use Your My Number Card as a Health Insurance Card at a Convenience Store ATM | Procedures, Compatible ATMs, Important Points

A system has begun that allows My Number Cards to be used as health insurance cards, streamlining procedures at medical institutions and pharmacies. Applications for this health insurance card use can be made not only via smartphone or computer but also through ATMs installed in some convenience stores.

This article will provide a detailed explanation of the benefits and preparations for using your My Number Card as a health insurance card, the types of convenience store ATMs that support applications, specific application procedures, how to check after applying, and important points and frequently asked questions regarding its use.

What is Using Your My Number Card as a Health Insurance Card? Benefits and Preparation

Using your My Number Card as a health insurance card is a system that gives your My Number Card the functionality of a health insurance card, allowing for identity and eligibility verification at the reception of medical institutions and pharmacies.

Benefits

Smoother reception at medical institutions: At medical institutions equipped with card readers with facial recognition, reception can be completed simply by placing your My Number Card, potentially eliminating the need to present your conventional health insurance card.
Medical care and medication based on accurate data: Since past medication information and specific health checkup information can be shared with doctors and pharmacists (with the individual’s consent), there is a possibility of receiving higher quality medical care.
Eliminates the need for a High-Cost Medical Expense Benefit limit application certificate: Payments exceeding the co-payment limit under the High-Cost Medical Expense Benefit system are exempted without prior application (some exceptions apply).
Simplified medical expense deduction procedures: Medical expense notification information can be obtained through the Myna Portal and used for medical expense deductions on tax returns.

Preparation

Before applying to use your health insurance card at a convenience store ATM, please prepare the following:

My Number Card: A valid My Number Card is required.
User Authentication Digital Certificate PIN (4 digits) set when your My Number Card was issued: This will be required during the application process.
(In some cases) Health Insurance Card: Depending on your health insurance provider, you may need to enter your insurer number and insured person’s symbol/number, but this is generally not required for ATM applications.

【Which ATMs are compatible?】Check which convenience store ATMs you can apply at

The main convenience store ATMs that support applications for using My Number Cards as health insurance cards are as follows:

Application Procedure and Required Items at Seven Bank ATMs

Compatibility: Most Seven Bank ATMs installed in 7-Eleven stores nationwide and other locations are compatible.
Required Items:
- My Number Card
- User Authentication Digital Certificate PIN (4 digits)
Procedure Outline:
1. Select a menu option such as “My Number Card Procedures” or “Administrative Services” on the ATM screen.
2. Select “Application for Health Insurance Card Use.”
3. Follow the on-screen instructions and place your My Number Card on the ATM’s reader.
4. Enter your User Authentication Digital Certificate PIN (4 digits).
5. Confirm the application details and agree.
6. Once the application completion screen is displayed, retrieve your My Number Card.

Source: Using ATMs | Seven Bank

Compatibility of Other Convenience Store ATMs (Lawson Bank, E-net/Japan Post Bank, AEON Bank)

Lawson Bank ATM: As of now (2025), Lawson Bank ATMs do not support applications for My Number Card health insurance card use.
E-net ATM (FamilyMart, etc.): As of now (2025), E-net ATMs do not support applications for My Number Card health insurance card use.
Japan Post Bank ATM (FamilyMart, etc.): As of now (2025), Japan Post Bank ATMs do not support applications for My Number Card health insurance card use.
AEON Bank ATM (Ministop, AEON stores, etc.): As of now (2025), AEON Bank ATMs do not support applications for My Number Card health insurance card use.

Compatibility status may change, so please be sure to check the latest information on the websites of each ATM operating company or related pages from the Ministry of Health, Labour and Welfare or the Digital Agency beforehand.

Specific Application Procedure at Convenience Store ATMs

Here, we will explain the general application procedure using a Seven Bank ATM as an example. (The actual screen may differ.)

ATM Top Screen: Touch a button such as “Various Procedures” or “My Number Card.”
Service Selection Screen: Touch the button for “Application for Health Insurance Card Use” or a similar phrase.
Set My Number Card: Follow the on-screen instructions and place your My Number Card on the ATM’s card reader. Pay attention to the orientation of the IC chip, etc.
PIN Entry: Enter the “User Authentication Digital Certificate PIN (4 digits)” set when your My Number Card was issued and touch the “Confirm” button.
Confirmation and Agreement to Important Notes: Important notes and consent items regarding health insurance card use will be displayed. Read the content carefully and touch a button such as “Agree” if you consent.
Confirmation of Application Details: A final confirmation screen for the application will be displayed. If the details are correct, touch a button such as “Apply.”
Application Complete: A message such as “Application Complete” will be displayed.
Retrieve My Number Card: Be sure not to forget to remove your My Number Card from the card reader. If a transaction slip is issued, take that as well.

At other compatible ATMs such as Lawson Bank ATMs, the procedure will generally be similar, but the screen wording and design will differ. Please operate according to the on-screen instructions of the ATM.

How to Check After Application and Process Until Use Begins

Once the application procedure at a convenience store ATM is complete, your My Number Card can generally be used as a health insurance card immediately.

How to Check:
- Myna Portal: You can log in to the Myna Portal from your smartphone or computer and check the “Health Insurance Card Use Application Status” to confirm if the application is complete.
- Card reader with facial recognition at medical institutions/pharmacies: It is usable if your health insurance information can be read when you actually place your My Number Card on the card reader at the reception of a medical institution or pharmacy.
Start of Use: You can use it immediately after the application is complete. However, the medical institution or pharmacy must have a card reader with facial recognition installed. At institutions without one, you will still need to present your conventional health insurance card.

Important Points for Application and Frequently Asked Questions

Advance PIN Confirmation: If you forget your PIN, it cannot be reset at a convenience store ATM. You will need to go to your municipal office to reset it.
My Number Card Expiration Date: The My Number Card itself and its digital certificates have expiration dates. It cannot be used if expired.
Card Handling: Your My Number Card contains important personal information. Be careful about loss or theft, and make sure not to leave your card behind during ATM operations.
System Maintenance Times: Application procedures may not be available during ATM system maintenance or Myna Portal maintenance times.
Apply Only Once: Once you apply to use your health insurance card, you do not need to apply again. Even if your health insurer changes, the new information will be automatically linked (some exceptions apply).
Can I still use my conventional health insurance card?: Even after applying to use your My Number Card as a health insurance card, your conventional health insurance card can still be used. However, some medical institutions may recommend using your My Number Card for reception.
Can I apply for family members?: Applications at convenience store ATMs are generally for the cardholder’s My Number Card only. For individuals under 15 years of age or adult wards, their legal representative can apply on their behalf via the Myna Portal, etc.
If an error occurs: This could be due to incorrect PIN entry, card reading failure, system error, etc. Follow the on-screen instructions or inquire using the intercom provided at the ATM.

Using your My Number Card as a health insurance card is an initiative that leads to increased efficiency in medical settings and the provision of better medical services. If you use a compatible convenience store ATM, you can apply easily. Prepare the necessary items in advance and proceed with the application after understanding the important points.