Medicare Advantage in Franklin County, Missouri
20,399 people in Franklin County, Missouri were enrolled in Medicare Advantage in October 2026, 74.3% of 27,448 eligible beneficiaries (+0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 54% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,505 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 219 members here are in plans that terminate or leave the county. MA plans offered go from 38 to 40.
Parent organizations in Franklin County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 11,067 | −974 | 54.4% |
| CVS Health Corporation | 3,533 | −621 | 17.4% |
| Humana Inc. | 2,261 | +1,152 | 11.1% |
| Lumeris Group Holdings Corporation | 2,047 | +1,345 | 10.1% |
| Elevance Health, Inc. | 814 | −232 | 4.0% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 430 | −15 | 2.1% |
| Centene Corporation | 130 | +4 | 0.6% |
| Rifkin Managed Care Holding, LLC | 50 | +15 | 0.2% |
| Mitchell Family Office | 16 | new | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,933 beneficiaries in Franklin County were assigned to 49 Medicare Shared Savings Program ACOs, 75.5% of assignable Original Medicare beneficiaries. Together, roughly 94% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.