Medicare Advantage in Webster County, Missouri
6,126 people in Webster County, Missouri were enrolled in Medicare Advantage in October 2026, 66.8% of 9,167 eligible beneficiaries (+1.0 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 28% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,011 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 36 to 36.
Parent organizations in Webster County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,716 | −301 | 28.2% |
| Humana Inc. | 1,477 | +316 | 24.3% |
| CVS Health Corporation | 1,072 | −231 | 17.6% |
| Devoted Health, Inc. | 768 | +681 | 12.6% |
| Elevance Health, Inc. | 731 | −290 | 12.0% |
| CoxHealth | 170 | +11 | 2.8% |
| Centene Corporation | 81 | +4 | 1.3% |
| Lumeris Group Holdings Corporation | 49 | +13 | 0.8% |
| Mitchell Family Office | 18 | new | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 919 beneficiaries in Webster County were assigned to 26 Medicare Shared Savings Program ACOs, 42.7% of assignable Original Medicare beneficiaries. Together, roughly 81% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.