Medicare Advantage in La Salle County, Illinois
9,597 people in La Salle County, Illinois were enrolled in Medicare Advantage in October 2026, 35.6% of 26,951 eligible beneficiaries (+0.2 pts since October 2025). CVS Health Corporation is the largest parent organization with 37% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,863 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 261 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 29 to 26.
Parent organizations in La Salle County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 3,544 | +83 | 37.1% |
| Humana Inc. | 3,311 | +886 | 34.6% |
| UnitedHealth Group, Inc. | 1,503 | +74 | 15.7% |
| Health Care Service Corporation | 400 | −412 | 4.2% |
| Centene Corporation | 351 | −97 | 3.7% |
| Elevance Health, Inc. | 279 | −18 | 2.9% |
| Molina Healthcare, Inc. | 174 | −33 | 1.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 9,744 beneficiaries in La Salle County were assigned to 58 Medicare Shared Savings Program ACOs, 69.9% of assignable Original Medicare beneficiaries. Together, roughly 81% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.