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    • Master Veteran Index (MVI) Service

    Metadata Updated: August 2, 2025

    The authoritative source for person identity data. Maintains identity data for persons across VA systems. Provides a unique universal identifier for each person. Stores identity data as correlations for each system where a person is known. Provides a probabilistic matching algorithm. (Includes MPI, PSIM, and IdM TK) Maintains a gold copy known as a Primary View of the persons identity data. Broadcasts identity trait updates to systems of interest. Maintains a record locator service.

    Access & Use Information

    Restricted: This dataset can only be accessed or used under certain conditions. License: Creative Commons CCZero

    Downloads & Resources

    Dates

    Metadata Created Date November 10, 2020
    Metadata Updated Date August 2, 2025

    Metadata Source

    Harvested from VA JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 10, 2020
    Metadata Updated Date August 2, 2025
    Publisher Department of Veterans Affairs
    Maintainer
    Identifier 64b048b3-e55e-49ce-b86f-615a47451b2c
    Data First Published 2018-02-23
    Data Last Modified 2022-03-22
    Rights Protected by Privacy Act and/or Health Insurance Portability and Accountability Act
    Public Access Level restricted public
    Bureau Code 029:40
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://www.data.va.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Harvest Object Id 15349add-98f8-4021-ad85-6d711f1db907
    Harvest Source Id fcd1f625-1c2e-4663-95cf-1b0eb053cce1
    Harvest Source Title VA JSON
    Homepage URL https://www.data.va.gov/d/c7db-tep2
    License https://creativecommons.org/publicdomain/zero/1.0/
    Program Code 029:000
    Source Datajson Identifier True
    Source Hash db0473c1d6bca0560a55cadf0c95feca92dd63eca13b94fce34fb741dffc2669
    Source Schema Version 1.1

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