Medicare Advantage in Door County, Wisconsin
5,427 people in Door County, Wisconsin were enrolled in Medicare Advantage in October 2026, 47.1% of 11,524 eligible beneficiaries (−0.1 pts since October 2025). Humana Inc. is the largest parent organization with 36% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,761 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 659 members here are in plans that terminate or leave the county, and Sanford Health leaves. MA plans offered go from 29 to 17.
Parent organizations in Door County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,942 | +897 | 36.0% |
| Network Health, Inc. | 1,747 | +1,529 | 32.4% |
| UnitedHealth Group, Inc. | 1,030 | −1,757 | 19.1% |
| HealthPartners, Inc. | 287 | +67 | 5.3% |
| CVS Health Corporation | 188 | −12 | 3.5% |
| Elevance Health, Inc. | 135 | −650 | 2.5% |
| Sanford Health | 50 | +27 | 0.9% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 12 | +1 | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,034 beneficiaries in Door County were assigned to 34 Medicare Shared Savings Program ACOs, 20.8% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.