Medicare Advantage in Keweenaw County, Michigan
399 people in Keweenaw County, Michigan were enrolled in Medicare Advantage in October 2026, 47.7% of 836 eligible beneficiaries (−0.9 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 49% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 3,619 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 68 members here are in plans that terminate or leave the county, and CVS Health Corporation leaves. MA plans offered go from 16 to 11.
Parent organizations in Keweenaw County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 188 | −38 | 48.6% |
| Humana Inc. | 131 | +37 | 33.9% |
| DLP Marquette Health Plan, LLC | 30 | new | 7.8% |
| CVS Health Corporation | 25 | −2 | 6.5% |
| UnitedHealth Group, Inc. | 13 | −1 | 3.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 158 beneficiaries in Keweenaw County were assigned to 12 Medicare Shared Savings Program ACOs, 47.2% of assignable Original Medicare beneficiaries. Together, roughly 72% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.