Medicare Advantage in Cass County, Missouri
13,162 people in Cass County, Missouri were enrolled in Medicare Advantage in October 2026, 53.9% of 24,430 eligible beneficiaries (−1.0 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 52% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 3,930 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 672 members here are in plans that terminate or leave the county, and Health Care Service Corporation leaves. MA plans offered go from 30 to 29.
Parent organizations in Cass County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 6,825 | −1,140 | 52.1% |
| Humana Inc. | 4,443 | +3,683 | 33.9% |
| CVS Health Corporation | 987 | −2,678 | 7.5% |
| Devoted Health, Inc. | 388 | +280 | 3.0% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 209 | −4 | 1.6% |
| Centene Corporation | 137 | −5 | 1.0% |
| Health Care Service Corporation | 119 | −17 | 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, 961 beneficiaries in Cass County were assigned to 44 Medicare Shared Savings Program ACOs, 12.3% of assignable Original Medicare beneficiaries. Together, roughly 60% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.