Medicare Advantage in Jackson County, Wisconsin
2,290 people in Jackson County, Wisconsin were enrolled in Medicare Advantage in October 2026, 43.5% of 5,266 eligible beneficiaries (−9.0 pts since October 2025). Sanford Health is the largest parent organization with 52% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,301 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 513 members here are in plans that terminate or leave the county, and Medica Holding Company leaves. MA plans offered go from 20 to 12.
Parent organizations in Jackson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Sanford Health | 1,160 | +390 | 51.6% |
| Humana Inc. | 408 | +255 | 18.2% |
| UnitedHealth Group, Inc. | 306 | −154 | 13.6% |
| Elevance Health, Inc. | 231 | −296 | 10.3% |
| Network Health, Inc. | 58 | new | 2.6% |
| Group Health Cooperative of Eau Claire | 40 | new | 1.8% |
| Medica Holding Company | 24 | new | 1.1% |
| CVS Health Corporation | 19 | −2 | 0.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 580 beneficiaries in Jackson County were assigned to 17 Medicare Shared Savings Program ACOs, 30.9% of assignable Original Medicare beneficiaries. Together, roughly 61% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.