Medicare Advantage in Kendall County, Illinois
8,088 people in Kendall County, Illinois were enrolled in Medicare Advantage in October 2026, 38.9% of 20,806 eligible beneficiaries (−0.3 pts since October 2025). Humana Inc. is the largest parent organization with 50% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,251 (highly concentrated). For 2027, 538 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 39 to 30.
Parent organizations in Kendall County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 4,017 | +1,034 | 50.0% |
| UnitedHealth Group, Inc. | 1,591 | +71 | 19.8% |
| CVS Health Corporation | 1,405 | −804 | 17.5% |
| Health Care Service Corporation | 535 | −117 | 6.7% |
| Devoted Health, Inc. | 254 | +105 | 3.2% |
| Centene Corporation | 114 | −9 | 1.4% |
| Zing Health Consolidator, Inc | 68 | +23 | 0.8% |
| Molina Healthcare, Inc. | 55 | +13 | 0.7% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,313 beneficiaries in Kendall County were assigned to 45 Medicare Shared Savings Program ACOs, 38.7% of assignable Original Medicare beneficiaries. Together, roughly 63% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.