Medicare Advantage in Kootenai County, Idaho
20,185 people in Kootenai County, Idaho were enrolled in Medicare Advantage in October 2026, 41.2% of 49,003 eligible beneficiaries (−4.4 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 39% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 2,756 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 6,326 members here are in plans that terminate or leave the county, and PacificSource leaves. MA plans offered go from 10 to 8.
Parent organizations in Kootenai County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 7,847 | +1,601 | 39.1% |
| PacificSource | 4,985 | +1,815 | 24.8% |
| Gemstone Holdings, Inc. | 4,748 | −3,195 | 23.6% |
| Molina Healthcare, Inc. | 1,356 | −31 | 6.8% |
| CVS Health Corporation | 495 | +24 | 2.5% |
| Humana Inc. | 205 | +35 | 1.0% |
| Elevance Health, Inc. | 199 | +9 | 1.0% |
| California Physicians' Service | 94 | +11 | 0.5% |
| Cambia Health Solutions, Inc. | 83 | −1,614 | 0.4% |
| Highmark Health | 44 | +2 | 0.2% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 14 | +2 | under 0.1% |
| Health Care Service Corporation | 11 | −3 | under 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, 14,030 beneficiaries in Kootenai County were assigned to 102 Medicare Shared Savings Program ACOs, 78.1% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.