Medicare Advantage in Jo Daviess County, Illinois
4,042 people in Jo Daviess County, Illinois were enrolled in Medicare Advantage in October 2026, 57.3% of 7,051 eligible beneficiaries (−0.7 pts since October 2025). Medical Associates Clinic, P.C. is the largest parent organization with 50% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,298 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 72 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 27 to 23.
Parent organizations in Jo Daviess County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Medical Associates Clinic, P.C. | 1,997 | −2 | 49.8% |
| CVS Health Corporation | 947 | +87 | 23.6% |
| UnitedHealth Group, Inc. | 563 | −126 | 14.0% |
| Humana Inc. | 280 | +103 | 7.0% |
| Highmark Health | 155 | +4 | 3.9% |
| Health Care Service Corporation | 29 | −17 | 0.7% |
| Molina Healthcare, Inc. | 26 | −4 | 0.6% |
| Centene Corporation | 14 | −1 | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,517 beneficiaries in Jo Daviess County were assigned to 34 Medicare Shared Savings Program ACOs, 68.1% of assignable Original Medicare beneficiaries. Together, roughly 86% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.