Medicare Advantage in Carter County, Missouri
729 people in Carter County, Missouri were enrolled in Medicare Advantage in October 2026, 41.3% of 1,765 eligible beneficiaries (+2.7 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 57% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 3,972 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 17 to 21.
Parent organizations in Carter County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 406 | +100 | 56.9% |
| Humana Inc. | 163 | +100 | 22.8% |
| CVS Health Corporation | 99 | +57 | 13.9% |
| Elevance Health, Inc. | 34 | −167 | 4.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 12 | new | 1.7% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 567 beneficiaries in Carter County were assigned to 12 Medicare Shared Savings Program ACOs, 72.5% of assignable Original Medicare beneficiaries. Together, roughly 84% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.