Medicare Advantage in Rio Blanco County, Colorado
477 people in Rio Blanco County, Colorado were enrolled in Medicare Advantage in October 2026, 31.2% of 1,528 eligible beneficiaries (−1.8 pts since October 2025). Humana Inc. is the largest parent organization with 62% of reported enrollment; 2 parent organizations have 11 or more members and the HHI is 5,291 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 80 members here are in plans that terminate or leave the county. MA plans offered go from 6 to 3.
Parent organizations in Rio Blanco County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 288 | +121 | 62.1% |
| UnitedHealth Group, Inc. | 176 | −140 | 37.9% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 711 beneficiaries in Rio Blanco County were assigned to 11 Medicare Shared Savings Program ACOs, 91.7% of assignable Original Medicare beneficiaries. Together, roughly 94% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.