Medicare Advantage in Monroe County, Wisconsin
4,223 people in Monroe County, Wisconsin were enrolled in Medicare Advantage in October 2026, 39.4% of 10,710 eligible beneficiaries (−2.4 pts since October 2025). University of Wisconsin Hospitals and Clincs Autho is the largest parent organization with 42% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,459 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 583 members here are in plans that terminate or leave the county. MA plans offered go from 24 to 22.
Parent organizations in Monroe County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| University of Wisconsin Hospitals and Clincs Autho | 1,752 | −89 | 41.8% |
| CVS Health Corporation | 711 | +530 | 17.0% |
| UnitedHealth Group, Inc. | 494 | −501 | 11.8% |
| Elevance Health, Inc. | 455 | −327 | 10.9% |
| Sanford Health | 455 | +181 | 10.9% |
| Humana Inc. | 290 | 0 | 6.9% |
| Molina Healthcare, Inc. | 18 | new | 0.4% |
| Network Health, Inc. | 15 | new | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,629 beneficiaries in Monroe County were assigned to 23 Medicare Shared Savings Program ACOs, 80.8% of assignable Original Medicare beneficiaries. Together, roughly 88% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.