Medicare Advantage in La Crosse County, Wisconsin
13,710 people in La Crosse County, Wisconsin were enrolled in Medicare Advantage in October 2026, 50.5% of 27,150 eligible beneficiaries (−3.6 pts since October 2025). University of Wisconsin Hospitals and Clincs Autho is the largest parent organization with 57% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 3,672 (highly concentrated). For 2027, 2,841 members here are in plans that terminate or leave the county, and Sanford Health, UnitedHealth Group, Inc. leave. MA plans offered go from 23 to 16.
Parent organizations in La Crosse County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| University of Wisconsin Hospitals and Clincs Autho | 7,804 | −140 | 57.1% |
| CVS Health Corporation | 1,808 | +1,472 | 13.2% |
| Sanford Health | 1,376 | +542 | 10.1% |
| Elevance Health, Inc. | 1,114 | −1,064 | 8.2% |
| UnitedHealth Group, Inc. | 1,012 | −1,480 | 7.4% |
| Humana Inc. | 434 | −69 | 3.2% |
| Network Health, Inc. | 42 | +24 | 0.3% |
| Group Health Cooperative of Eau Claire | 33 | new | 0.2% |
| Molina Healthcare, Inc. | 24 | new | 0.2% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 13 | +1 | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 8,311 beneficiaries in La Crosse County were assigned to 46 Medicare Shared Savings Program ACOs, 88.0% of assignable Original Medicare beneficiaries. Together, roughly 94% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.