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TRICARE Transition Challenges in the West Region
We are aware of the customer service issues our patients are experiencing in the West Region. Learn more about how we are fixing these issues, including waiving our usual authorization process through March 18.

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Defense Health Agency-Great Lakes

For remotely located Active Duty and Reserve Component service members, the Defense Health Agency (DHA) - Great Lakes (fomerly known as MMSO) (DHA-GL):

  • Gives pre-authorization for civilian medical care
  • Authorizes payment of civilian medical claims
  • Coordinates civilian health care services for remotely located service members
  • Collaborates with unit representatives regarding line-of duty (LOD) care for remotely located service members

Request Forms

The forms below are submitted to the DHA-GL. Instructions and addresses are found on each form.


Review the instructions below for DHA-GL processes and procedures.

Last Updated 5/17/2017

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Defense Health Agency, Great Lakes


DHA, Great Lakes Website

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