Medicaid plans › Mississippi
Mississippi Medicaid Managed-Care Plans for Providers
Enrollments are billed 50% at the start and 50% at submission; everything else 100% at the start.
Mississippi Medicaid is run by the Mississippi Division of Medicaid. 478,746 people were enrolled in its 3 managed-care plans in 2024. To see their patients, a provider enrolls with Mississippi Medicaid through the MESA provider portal, then applies to each plan separately.
| Plan | Members (2024) | Share | Parent |
|---|---|---|---|
| Magnolia Health Plan | 193,826 | 40.5% | Centene |
| UnitedHealthcare Community Plan | 186,115 | 38.9% | UnitedHealth Group |
| Molina Healthcare | 98,805 | 20.6% | Molina Healthcare |
How Joining Works in Mississippi
First the state: Mississippi Medicaid enrollment through the MESA provider portal, which gives you the Medicaid ID every plan asks for. Then the plans: each takes its own participation request and credentials you from your CAQH ProView (DataSpring) profile. 3 parent companies run plans here, and plans owned by the same company still contract state by state.
How to Join Each Mississippi Plan
Magnolia Health Plan (Centene): Centene runs this plan alongside its Ambetter and Wellcare products. Each Centene plan takes its own contract request on the plan's provider website, credentials from your CAQH ProView (DataSpring) profile, and will not load a provider without the state Medicaid ID.
UnitedHealthcare Community Plan (UnitedHealth Group): UnitedHealthcare Community Plans use UnitedHealthcare's provider onboarding: a participation request on the UnitedHealthcare provider site, credentialing from your CAQH ProView (DataSpring) profile, then a state-specific Community Plan agreement.
Molina Healthcare (Molina Healthcare): Molina credentials each state separately. The contract request goes through the state's Molina provider site and requires an active state Medicaid enrollment; credentialing uses your CAQH ProView (DataSpring) profile.
Also in Mississippi: Medicare, Mississippi Medicaid and commercial credentialing.
Questions
Which Mississippi Medicaid plan is the largest?
Magnolia Health Plan, with 193,826 members in 2024, 40.5% of the 478,746 people enrolled in Mississippi's Medicaid managed-care plans.
Do I have to join every Mississippi Medicaid plan?
No. Each plan is a separate contract. Practices usually start with the two or three largest plans in their county, then add others as patients ask for them. All of them require Mississippi Medicaid enrollment first.
Membership from KFF, Medicaid MCO Enrollment by Plan and Parent Firm, 2024. Plans change when the state rebids its contracts; we confirm the current list on every file.