Medicare Advantage in Grand County, Colorado
1,073 people in Grand County, Colorado were enrolled in Medicare Advantage in October 2026, 32.9% of 3,266 eligible beneficiaries (−0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 42% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 3,194 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 294 members here are in plans that terminate or leave the county. MA plans offered go from 19 to 11.
Parent organizations in Grand County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 429 | −163 | 41.5% |
| Humana Inc. | 298 | +99 | 28.8% |
| CVS Health Corporation | 256 | +62 | 24.8% |
| Devoted Health, Inc. | 50 | +29 | 4.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 192 beneficiaries in Grand County were assigned to 43 Medicare Shared Savings Program ACOs, 12.7% of assignable Original Medicare beneficiaries. Together, roughly 41% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.