Medicare Advantage in Macon County, Missouri
1,380 people in Macon County, Missouri were enrolled in Medicare Advantage in October 2026, 31.9% of 4,331 eligible beneficiaries (+1.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 71% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 5,487 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 198 members here are in plans that terminate or leave the county. MA plans offered go from 17 to 16.
Parent organizations in Macon County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 963 | +88 | 70.8% |
| CVS Health Corporation | 274 | +173 | 20.1% |
| Humana Inc. | 111 | +61 | 8.2% |
| Elevance Health, Inc. | 12 | −238 | 0.9% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,735 beneficiaries in Macon County were assigned to 23 Medicare Shared Savings Program ACOs, 73.2% of assignable Original Medicare beneficiaries. Together, roughly 82% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.