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Members

For Help With… Your Solution
  • Getting or replacing your Medicaid ID card 
  • Questions about your benefits or claims
  • Prescription drug coverage, pharmacy claims, or prior authorization
  • Finding a doctor, specialist, or other provider in your network

Please have your Medicaid ID number ready when you call.

You can manage many of these needs online by registering for or logging into the Mesa Member Portal by clicking here. 

If you require further assistance, please contact us at our Member Support line at 1-800-884-3222.
  • Applying for Medicaid coverage
  • Checking your eligibility status
  • Tracking the status of an application
  • Updating your name, address, or other personal information

Call the Mississippi Division of Medicaid for assistance at 1-800-421-2408.

You can also apply for coverage or check your application status online by visiting the official portal here.
Learning more about Eligibility Reporting Requirements for changes to your Medicaid eligibility status.

Call the Mississippi Division of Medicaid for assistance at: 1-800-421-2408.

Or, learn more about Eligibility Reporting Requirements here. 
Contacting your Coordinated Care Organization (CCO) Medicaid benefit administrator.  

Visit online or call your CCO:  
Requesting your claims or lien information  Submit a Subrogation Request Form 
Providing other insurance coverage (Third-Party) information  Submit an Insurance Update Form 
Posted byMatt Westerfield
August 4, 2025
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