Medicare Advantage in Marinette County, Wisconsin
9,406 people in Marinette County, Wisconsin were enrolled in Medicare Advantage in October 2026, 67.3% of 13,978 eligible beneficiaries (+0.9 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 38% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 2,662 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 607 members here are in plans that terminate or leave the county, and Centene Corporation, DLP Marquette Health Plan, LLC leave. MA plans offered go from 34 to 33.
Parent organizations in Marinette County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 3,547 | −674 | 37.9% |
| Humana Inc. | 2,898 | +936 | 30.9% |
| Network Health, Inc. | 1,283 | +1,030 | 13.7% |
| HealthPartners, Inc. | 705 | −185 | 7.5% |
| CVS Health Corporation | 372 | +41 | 4.0% |
| Elevance Health, Inc. | 260 | −750 | 2.8% |
| Centene Corporation | 154 | +30 | 1.6% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 110 | 0 | 1.2% |
| Sanford Health | 26 | +7 | 0.3% |
| DLP Marquette Health Plan, LLC | 13 | new | 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, 2,953 beneficiaries in Marinette County were assigned to 25 Medicare Shared Savings Program ACOs, 82.4% 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.