Medicare Advantage in Ogle County, Illinois
5,895 people in Ogle County, Illinois were enrolled in Medicare Advantage in October 2026, 47.7% of 12,356 eligible beneficiaries (+0.6 pts since October 2025). CVS Health Corporation is the largest parent organization with 57% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,900 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 244 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 35 to 25.
Parent organizations in Ogle County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 3,318 | +65 | 56.7% |
| Humana Inc. | 1,332 | +331 | 22.7% |
| UnitedHealth Group, Inc. | 744 | −166 | 12.7% |
| Centene Corporation | 111 | −23 | 1.9% |
| Health Care Service Corporation | 99 | −51 | 1.7% |
| Devoted Health, Inc. | 98 | new | 1.7% |
| Zing Health Consolidator, Inc | 69 | +19 | 1.2% |
| Molina Healthcare, Inc. | 52 | −4 | 0.9% |
| Highmark Health | 34 | −3 | 0.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,608 beneficiaries in Ogle County were assigned to 45 Medicare Shared Savings Program ACOs, 33.0% of assignable Original Medicare beneficiaries. Together, roughly 65% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.