Medicare Advantage in Vilas County, Wisconsin
4,260 people in Vilas County, Wisconsin were enrolled in Medicare Advantage in October 2026, 44.0% of 9,683 eligible beneficiaries (−1.5 pts since October 2025). Sanford Health is the largest parent organization with 46% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,919 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 1,254 members here are in plans that terminate or leave the county, and Aspirus, Inc. leaves. MA plans offered go from 19 to 15.
Parent organizations in Vilas County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Sanford Health | 1,969 | +102 | 46.5% |
| Humana Inc. | 784 | +372 | 18.5% |
| UnitedHealth Group, Inc. | 763 | −111 | 18.0% |
| Aspirus, Inc. | 286 | +181 | 6.8% |
| Elevance Health, Inc. | 214 | −599 | 5.1% |
| CVS Health Corporation | 137 | −4 | 3.2% |
| Health Care Service Corporation | 33 | +1 | 0.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 26 | +3 | 0.6% |
| Network Health, Inc. | 18 | +5 | 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, 215 beneficiaries in Vilas County were assigned to 51 Medicare Shared Savings Program ACOs, 5.1% of assignable Original Medicare beneficiaries. Together, roughly 47% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.