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The Centers for Medicare & Medicaid Services

Contact Us

Contact the MAT Support Desk

Please use the Bonnie and MAT Issue Tracker located here to submit questions, technical issues or suggest an enhancement. To submit a question, issue or enhancement request, you will need to have an ONC Project Tracking Tool account.  You can register for an account here

Please access the New User Registration form here to request a Measure Authoring Tool account. 

Please use the Contact Us form below to submit questions regarding user account registration, reactivation, or account deletion.

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MAT Support Desk

Hours of Operation

  • Monday - Friday
  • 8:00 am - 5:00 pm
  • Eastern Time

Closed on the following holidays:

  • New Year's Day
  • Martin Luther King Jr. Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Veterans Day
  • Thanksgiving
  • Day after Thanksgiving
  • Christmas Eve
  • Christmas