Medicare Advantage in Marion County, Arkansas
2,964 people in Marion County, Arkansas were enrolled in Medicare Advantage in October 2026, 49.2% of 6,020 eligible beneficiaries (+1.5 pts since October 2025). Humana Inc. is the largest parent organization with 62% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 4,369 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 249 members here are in plans that terminate or leave the county, and CVS Health Corporation leaves. MA plans offered go from 29 to 25.
Parent organizations in Marion County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,803 | +441 | 62.0% |
| UnitedHealth Group, Inc. | 603 | −53 | 20.7% |
| Centene Corporation | 245 | −126 | 8.4% |
| CVS Health Corporation | 121 | −25 | 4.2% |
| Devoted Health, Inc. | 70 | new | 2.4% |
| USAble Mutual Insurance Company | 53 | −182 | 1.8% |
| Select Founders, LLC | 14 | −2 | 0.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,995 beneficiaries in Marion County were assigned to 32 Medicare Shared Savings Program ACOs, 86.0% of assignable Original Medicare beneficiaries. Together, roughly 93% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.