Medicare Advantage in Valley County, Idaho
1,493 people in Valley County, Idaho were enrolled in Medicare Advantage in October 2026, 41.1% of 3,629 eligible beneficiaries (−4.0 pts since October 2025). PacificSource is the largest parent organization with 47% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,065 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 1,122 members here are in plans that terminate or leave the county, and Trinity Health Corporation leaves. MA plans offered go from 17 to 11.
Parent organizations in Valley County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| PacificSource | 689 | +261 | 47.2% |
| UnitedHealth Group, Inc. | 377 | −249 | 25.8% |
| Humana Inc. | 137 | +55 | 9.4% |
| Trinity Health Corporation | 87 | +72 | 6.0% |
| Gemstone Holdings, Inc. | 83 | −258 | 5.7% |
| Molina Healthcare, Inc. | 42 | +2 | 2.9% |
| CVS Health Corporation | 16 | +1 | 1.1% |
| Cambia Health Solutions, Inc. | 14 | +3 | 1.0% |
| Elevance Health, Inc. | 14 | +2 | 1.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 69 beneficiaries in Valley County were assigned to 24 Medicare Shared Savings Program ACOs, 5.4% of assignable Original Medicare beneficiaries. Together, roughly 44% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.