Medicare Advantage in Mississippi County, Arkansas
4,634 people in Mississippi County, Arkansas were enrolled in Medicare Advantage in October 2026, 56.5% of 8,197 eligible beneficiaries (+1.0 pts since October 2025). Humana Inc. is the largest parent organization with 44% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,081 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 268 members here are in plans that terminate or leave the county. MA plans offered go from 28 to 22.
Parent organizations in Mississippi County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,034 | +738 | 44.2% |
| UnitedHealth Group, Inc. | 1,360 | −451 | 29.6% |
| Centene Corporation | 631 | −156 | 13.7% |
| Health Care Service Corporation | 341 | +30 | 7.4% |
| Devoted Health, Inc. | 132 | +105 | 2.9% |
| CVS Health Corporation | 74 | −4 | 1.6% |
| St. Bernard's Healthcare | 19 | −2 | 0.4% |
| Select Founders, LLC | 11 | new | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,088 beneficiaries in Mississippi County were assigned to 23 Medicare Shared Savings Program ACOs, 38.5% of assignable Original Medicare beneficiaries. Together, roughly 73% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.