Medicare Advantage in Gilpin County, Colorado
680 people in Gilpin County, Colorado were enrolled in Medicare Advantage in October 2026, 49.9% of 1,362 eligible beneficiaries (−1.0 pts since October 2025). Kaiser Foundation Health Plan, Inc. is the largest parent organization with 34% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,378 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 173 members here are in plans that terminate or leave the county, and CVS Health Corporation leaves. MA plans offered go from 30 to 15.
Parent organizations in Gilpin County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Kaiser Foundation Health Plan, Inc. | 224 | −2 | 33.7% |
| UnitedHealth Group, Inc. | 175 | −98 | 26.3% |
| Humana Inc. | 125 | +43 | 18.8% |
| CVS Health Corporation | 76 | +38 | 11.4% |
| Devoted Health, Inc. | 53 | +27 | 8.0% |
| Intermountain Health Care, Inc. | 12 | +1 | 1.8% |
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 Gilpin County were assigned to 15 Medicare Shared Savings Program ACOs, 52.6% of assignable Original Medicare beneficiaries. Together, roughly 76% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.