Medicare Advantage in Golden Valley County, Montana
137 people in Golden Valley County, Montana were enrolled in Medicare Advantage in October 2026, 37.1% of 369 eligible beneficiaries (+2.6 pts since October 2025). Humana Inc. is the largest parent organization with 78% of reported enrollment; 2 parent organizations have 11 or more members and the HHI is 6,543 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 25 members here are in plans that terminate or leave the county. MA plans offered go from 15 to 5.
Parent organizations in Golden Valley County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 91 | +20 | 77.8% |
| UnitedHealth Group, Inc. | 26 | −12 | 22.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 116 beneficiaries in Golden Valley County were assigned to 8 Medicare Shared Savings Program ACOs, 70.5% of assignable Original Medicare beneficiaries. Together, roughly 81% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.