Medicare Advantage in Putnam County, Illinois
515 people in Putnam County, Illinois were enrolled in Medicare Advantage in October 2026, 31.7% of 1,627 eligible beneficiaries (+0.7 pts since October 2025). CVS Health Corporation is the largest parent organization with 45% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,839 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 25 to 20.
Parent organizations in Putnam County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 213 | +34 | 44.7% |
| Elevance Health, Inc. | 88 | +3 | 18.5% |
| Humana Inc. | 87 | +22 | 18.3% |
| UnitedHealth Group, Inc. | 56 | −22 | 11.8% |
| Health Care Service Corporation | 17 | +6 | 3.6% |
| Centene Corporation | 15 | +1 | 3.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 515 beneficiaries in Putnam County were assigned to 19 Medicare Shared Savings Program ACOs, 58.7% of assignable Original Medicare beneficiaries. Together, roughly 72% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.