Medicare Advantage in Osage County, Missouri
1,616 people in Osage County, Missouri were enrolled in Medicare Advantage in October 2026, 53.8% of 3,004 eligible beneficiaries (−0.5 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 71% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 5,445 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 264 members here are in plans that terminate or leave the county. MA plans offered go from 22 to 25.
Parent organizations in Osage County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,119 | −63 | 71.3% |
| Humana Inc. | 265 | +146 | 16.9% |
| CVS Health Corporation | 138 | +38 | 8.8% |
| Centene Corporation | 19 | new | 1.2% |
| Mitchell Family Office | 18 | +6 | 1.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 11 | −1 | 0.7% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 381 beneficiaries in Osage County were assigned to 14 Medicare Shared Savings Program ACOs, 38.6% of assignable Original Medicare beneficiaries. Together, roughly 72% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.