Medicare Advantage in Henderson County, Illinois
618 people in Henderson County, Illinois were enrolled in Medicare Advantage in October 2026, 34.2% of 1,805 eligible beneficiaries (+0.1 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 43% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 3,092 (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 24 to 19.
Parent organizations in Henderson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 254 | −47 | 42.7% |
| CVS Health Corporation | 177 | +37 | 29.7% |
| Humana Inc. | 107 | +58 | 18.0% |
| Centene Corporation | 45 | +16 | 7.6% |
| Molina Healthcare, Inc. | 12 | −1 | 2.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 243 beneficiaries in Henderson County were assigned to 15 Medicare Shared Savings Program ACOs, 25.5% of assignable Original Medicare beneficiaries. Together, roughly 51% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.