Medicare Advantage in Mississippi County, Missouri
1,174 people in Mississippi County, Missouri were enrolled in Medicare Advantage in October 2026, 41.6% of 2,820 eligible beneficiaries (+0.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 79% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 6,393 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 15 to 18.
Parent organizations in Mississippi County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 905 | +144 | 78.6% |
| CVS Health Corporation | 153 | +34 | 13.3% |
| Humana Inc. | 56 | +28 | 4.9% |
| Elevance Health, Inc. | 37 | −202 | 3.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,273 beneficiaries in Mississippi County were assigned to 15 Medicare Shared Savings Program ACOs, 85.6% of assignable Original Medicare beneficiaries. Together, roughly 92% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.