(800) 635 3089


Open enrollment starts May 15th. This is the time to make plan changes and update your address and beneficiaries! Please see the information below for resources and plan changes. To make enrollment or address changes please fill out the individual enrollment form and return to the HR representative in your city or town.

WATCH THIS VIDEO FIRST:

MMIA Events Calendar

Send Documents

Contact Us

For general questions, comments or concerns, please contact customer service.

  • 3115 McHugh Dr.
    Helena, MT 59602

  • (800) 635 3089