Medicare Advantage in Shoshone County, Idaho
1,347 people in Shoshone County, Idaho were enrolled in Medicare Advantage in October 2026, 33.4% of 4,037 eligible beneficiaries (−1.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 72% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 5,495 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 93 members here are in plans that terminate or leave the county. MA plans offered go from 7 to 6.
Parent organizations in Shoshone County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 959 | +309 | 71.9% |
| Gemstone Holdings, Inc. | 189 | −340 | 14.2% |
| Molina Healthcare, Inc. | 141 | +8 | 10.6% |
| Humana Inc. | 29 | +2 | 2.2% |
| CVS Health Corporation | 15 | 0 | 1.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 778 beneficiaries in Shoshone County were assigned to 17 Medicare Shared Savings Program ACOs, 38.7% of assignable Original Medicare beneficiaries. Together, roughly 59% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.