Medicare Advantage in Rio Grande County, Colorado
1,412 people in Rio Grande County, Colorado were enrolled in Medicare Advantage in October 2026, 39.0% of 3,622 eligible beneficiaries (−1.7 pts since October 2025). Humana Inc. is the largest parent organization with 58% of reported enrollment; 3 parent organizations have 11 or more members and the HHI is 5,021 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 1,108 members here are in plans that terminate or leave the county, and Humana Inc. leaves. MA plans offered go from 4 to 0.
Parent organizations in Rio Grande County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 800 | −65 | 58.1% |
| UnitedHealth Group, Inc. | 557 | +14 | 40.5% |
| CVS Health Corporation | 19 | +1 | 1.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 213 beneficiaries in Rio Grande County were assigned to 17 Medicare Shared Savings Program ACOs, 14.4% of assignable Original Medicare beneficiaries. Together, roughly 48% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.