Medicare Advantage in Christian County, Illinois
4,001 people in Christian County, Illinois were enrolled in Medicare Advantage in October 2026, 48.6% of 8,239 eligible beneficiaries (+1.0 pts since October 2025). CVS Health Corporation is the largest parent organization with 65% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 4,534 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 48 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 26 to 20.
Parent organizations in Christian County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 2,599 | +97 | 65.3% |
| Humana Inc. | 450 | +71 | 11.3% |
| UnitedHealth Group, Inc. | 396 | −16 | 9.9% |
| UMWA Health and Retirement Funds | 177 | −10 | 4.4% |
| Centene Corporation | 144 | +49 | 3.6% |
| Devoted Health, Inc. | 88 | +61 | 2.2% |
| Molina Healthcare, Inc. | 69 | −12 | 1.7% |
| Health Care Service Corporation | 57 | −23 | 1.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,954 beneficiaries in Christian County were assigned to 22 Medicare Shared Savings Program ACOs, 77.2% of assignable Original Medicare beneficiaries. Together, roughly 88% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.