Medicare Advantage in Weld County, Colorado
32,405 people in Weld County, Colorado were enrolled in Medicare Advantage in October 2026, 56.8% of 57,047 eligible beneficiaries (−0.1 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 40% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,890 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 5,225 members here are in plans that terminate or leave the county. MA plans offered go from 37 to 25.
Parent organizations in Weld County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 12,743 | −782 | 39.5% |
| Humana Inc. | 10,676 | +2,680 | 33.1% |
| Kaiser Foundation Health Plan, Inc. | 4,406 | +67 | 13.6% |
| CVS Health Corporation | 1,815 | −65 | 5.6% |
| Devoted Health, Inc. | 1,293 | +11 | 4.0% |
| Intermountain Health Care, Inc. | 703 | +387 | 2.2% |
| Elevance Health, Inc. | 289 | +40 | 0.9% |
| Health Care Service Corporation | 152 | −1,062 | 0.5% |
| Total Community Options, Inc. | 138 | +3 | 0.4% |
| TRU Community Care | 40 | −9 | 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 36 | +2 | 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, 11,132 beneficiaries in Weld County were assigned to 103 Medicare Shared Savings Program ACOs, 68.4% of assignable Original Medicare beneficiaries. Together, roughly 86% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.