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Information coordination system (Public Medical Hub: PMH) connecting local governments, medical institutions, etc.

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In cooperation with relevant ministries and agencies, Digital Agency is promoting efforts in digitalization that utilize My Number Card in areas such as medical care subsidies, vaccinations, and maternal and child health.

Notice

Table of Contents

  1. Efforts of PMH
  2. Implementation status of preceding projects
  3. Data
  4. Related Information

1. PMH Initiatives

In the fields where local governments are responsible for implementation, such as medical care subsidies, maternal and child health care, vaccinations, and nursing care insurance, there are many operational burdens on citizens, local governments, medical institutions, and pharmacies involved in coordinating information on paper, and improvements are needed.
In order to solve this problem, the Roadmap for the Promotion of the Healthcare DX (published by Cabinet Secretariat) (PDF / 454 kb), which was decided by on June 2, 2023, states that "A mechanism for information coordination will be established to enable the safe exchange of necessary information among relevant organizations and administrative agencies. In conjunction with efforts to standardize local government systems, information will be shared on nursing care insurance, vaccinations, maternal and child health care, publicly funded health care, and local independent medical care subsidies."

The City of Digital Agency developed a system with an information coordination function (Public Medical Hub: PMH) in fiscal 2023 as a mechanism for information coordination, and started preliminary implementation projects for local governments that request it, in the fields of medical expense subsidies and vaccination and maternal and child health. In the future, we will expand the function to increase the systems and use cases for information coordination at PMH, and promote initiatives to expand the target local governments, medical institutions, and pharmacies.

PMH Benefits

  • Medical Subsidy Field
    • When visiting medical institutions and pharmacies, the My Number Card (My Number Card as the Health Insurance Certificate) will be able to be used as a recipient certificate of medical expense subsidies and a patient registration card.
  • Field of immunization and maternal and child health
    • It will be possible to input the Prevaccination Screening Questionnaire and Medical Interview Sheet on a smartphone, etc., and use My Number Card as a vaccination ticket or a medical examination ticket.
    • The Mynaportal will recommend vaccination and medical examination to prevent forgetting vaccination and medical examination, and will enable vaccination history and medical examination results to be checked on the Mynaportal in real time

2. Implementation status of preceding projects

The number of participating local governments expanded from 183 as of the end of FY 2024 to 608 as of June 7, 2026, and is expected to reach 622, which is the total number of local governments. In addition, the number of medical institutions and pharmacies where PMH can be used increased from approximately 25000 in April 2025 to approximately 69000 in March 2026.

Please check the Ministry of Health, Labor and Welfare website "Online Eligibility Confirmation for Medical Care Subsidy Information for Local Governments and Municipal system vendor (Ministry of Health, Labor and Welfare)" for the status of local governments participating or scheduled to participate in the advance implementation of online eligibility confirmation for medical care subsidies.

3. Materials

Local Governments Information for system vendors

Specifications for PMH

Provides information necessary for connecting to PMH (Medical Expenses Subsidy), such as specifications.

API Integration Batch

Please check the following if you use API Linkage Batch.

PIA Template

Please check the following when you implement PIA * in your municipality.

*PIA (Privacy Impact Assessment): A system for evaluating in advance the risks and impacts on the privacy of individuals before conducting work that handles personal information, etc.

Public Medical Hub System Terms and Conditions

When you participate in the preceding implementation project, consent procedures are necessary. Details will be informed to the participating municipalities individually.

For the history of revisions, please check with regarding the revisions to the Public Medical Hub system usage rules.

Information for medical institutions and pharmacies

Posters for display at medical institutions and pharmacies

We have posted posters created by Digital Agency for display at medical institutions and pharmacies.

List of providers that have already responded (or will respond) to the use of patient registration cards at PMH and My Number Card

Please refer to the following for a list of medical institutions / pharmacies that have already responded (or will respond) to the use of PMH (medical expense assistance) and My Number Card's patient registration card.

Subsidy system for medical institutions and pharmacies

Public Medical Hub System Terms and Conditions

Before you start using PMH, you must agree to the Terms of Use. Please see below for details.

For the history of revisions, please check with regarding the revisions to the Public Medical Hub system usage rules.

Information for medical institutions and pharmacy system vendors

Specifications for PMH

Provides information necessary for connecting to PMH (Medical Expenses Subsidy), such as specifications.

PMH system related master

Masters related to systems in PMH are listed.
*The information is provided in Excel and CSV formats, but the content is the same.

List of PMH Taxpayer Numbers

The list of Taxpayer Identification Numbers registered with PMH is available.

4. Related Information