Medicare Advantage in Logan County, Illinois
2,997 people in Logan County, Illinois were enrolled in Medicare Advantage in October 2026, 46.9% of 6,390 eligible beneficiaries (+0.1 pts since October 2025). CVS Health Corporation is the largest parent organization with 57% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 3,875 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 456 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 24 to 18.
Parent organizations in Logan County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 1,692 | +184 | 57.0% |
| Humana Inc. | 585 | +174 | 19.7% |
| UnitedHealth Group, Inc. | 419 | 0 | 14.1% |
| Centene Corporation | 168 | +10 | 5.7% |
| Molina Healthcare, Inc. | 50 | −4 | 1.7% |
| Devoted Health, Inc. | 42 | +18 | 1.4% |
| Health Care Service Corporation | 12 | −68 | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,132 beneficiaries in Logan County were assigned to 18 Medicare Shared Savings Program ACOs, 39.9% of assignable Original Medicare beneficiaries. Together, roughly 68% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.