Medicare Advantage in Madison County, Missouri
1,781 people in Madison County, Missouri were enrolled in Medicare Advantage in October 2026, 50.3% of 3,540 eligible beneficiaries (−0.1 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 63% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 4,426 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 170 members here are in plans that terminate or leave the county, and CVS Health Corporation leaves. MA plans offered go from 24 to 19.
Parent organizations in Madison County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,113 | +68 | 62.9% |
| Humana Inc. | 331 | +136 | 18.7% |
| CVS Health Corporation | 178 | +40 | 10.1% |
| Elevance Health, Inc. | 61 | −225 | 3.4% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 43 | −2 | 2.4% |
| Rifkin Managed Care Holding, LLC | 24 | −8 | 1.4% |
| Devoted Health, Inc. | 20 | new | 1.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 492 beneficiaries in Madison County were assigned to 17 Medicare Shared Savings Program ACOs, 34.9% 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.