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Defense Health Agency

"On October 1, 2013, the Department of Defense established the Defense Health Agency (DHA) to manage the activities of the Military Health System. These activities include those previously managed by TRICARE Management Activity (TMA), which was disestablished on the same date. During the next several months, all TMA websites will change to reflect the new DHA. We appreciate your patience during this transition."


The Defense Medical Information System (DMIS) is a service of the Department of Defense (DoD) which identifies past and current DoD medical facilities. This information is updated monthly with availability of data going back several years.

DMIS Monthly Downloads

  • Select the desired monthly DMIS ID Table.
  • This download contains the monthly DMIS ID Table from the current year in the five following formats:
    • Comma-delimited
    • Bar-delimited
    • Quote-delimited
    • Fixed-width
    • Excel
  • With the desired month selected, click Download. This launches a download window.
  • To download the tables, choose the appropriate action from your browser's download window.
  • At the beginning of a new fiscal year, all tables from the previous fiscal year are removed from the option list. The September table will move to the historical DMIS ID file list for the previous fiscal year.

DMIS Monthly Change Downloads

  • You can download a monthly change file in MS Excel format
  • This file describes what has changed from the previous month
  • At the beginning of a new fiscal year, all change spreadsheets from the previous fiscal year are removed from the option list.

  • DMIS Year-End Downloads

  • You can download a fiscal year-end file in MS Excel format.
  • The fiscal year-end file is the DMIS ID Table of September of the selected year.
  • Note: All historical fiscal year-end files have been zipped using WinZip.

  • DMIS Data Dictionaries

    DMIS Data Dictionary.

    DMIS Historical File Layouts

    Each version of the file layout will appear as a tab in the Excel spreadsheet linked below.

    DMIS Historical File Layouts.