Medicare Advantage in Knox County, Nebraska
818 people in Knox County, Nebraska were enrolled in Medicare Advantage in October 2026, 33.9% of 2,412 eligible beneficiaries (−1.5 pts since October 2025). Blue Cross Blue Shield of Nebraska is the largest parent organization with 40% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,779 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 442 members here are in plans that terminate or leave the county. MA plans offered go from 19 to 12.
Parent organizations in Knox County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Nebraska | 316 | +95 | 39.7% |
| Medica Holding Company | 234 | +60 | 29.4% |
| UnitedHealth Group, Inc. | 120 | −93 | 15.1% |
| CVS Health Corporation | 71 | −100 | 8.9% |
| Centene Corporation | 44 | +20 | 5.5% |
| Sanford Health | 11 | 0 | 1.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 712 beneficiaries in Knox County were assigned to 14 Medicare Shared Savings Program ACOs, 61.2% of assignable Original Medicare beneficiaries. Together, roughly 74% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.