Medicare Advantage in Callaway County, Missouri
5,575 people in Callaway County, Missouri were enrolled in Medicare Advantage in October 2026, 53.2% of 10,472 eligible beneficiaries (−0.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 60% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 4,266 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 669 members here are in plans that terminate or leave the county. MA plans offered go from 31 to 30.
Parent organizations in Callaway County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 3,324 | −263 | 60.0% |
| Humana Inc. | 1,110 | +655 | 20.0% |
| CVS Health Corporation | 896 | +52 | 16.2% |
| Centene Corporation | 84 | +27 | 1.5% |
| Elevance Health, Inc. | 63 | −400 | 1.1% |
| Rifkin Managed Care Holding, LLC | 38 | +12 | 0.7% |
| Lumeris Group Holdings Corporation | 26 | +15 | 0.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,033 beneficiaries in Callaway County were assigned to 30 Medicare Shared Savings Program ACOs, 31.8% of assignable Original Medicare beneficiaries. Together, roughly 68% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.