Medicare Advantage in Champaign County, Illinois
19,787 people in Champaign County, Illinois were enrolled in Medicare Advantage in October 2026, 58.8% of 33,653 eligible beneficiaries (−1.1 pts since October 2025). CVS Health Corporation is the largest parent organization with 75% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 5,799 (highly concentrated). For 2027, 1,163 members here are in plans that terminate or leave the county. MA plans offered go from 16 to 17.
Parent organizations in Champaign County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 14,771 | +6,481 | 74.8% |
| Humana Inc. | 2,162 | +1,054 | 11.0% |
| Centene Corporation | 1,462 | +16 | 7.4% |
| Molina Healthcare, Inc. | 913 | −77 | 4.6% |
| UnitedHealth Group, Inc. | 258 | −14 | 1.3% |
| Health Care Service Corporation | 150 | +107 | 0.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 21 | −4 | 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 7,210 beneficiaries in Champaign County were assigned to 63 Medicare Shared Savings Program ACOs, 75.5% of assignable Original Medicare beneficiaries. Together, roughly 90% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.