Medicare Advantage in Box Butte County, Nebraska
304 people in Box Butte County, Nebraska were enrolled in Medicare Advantage in October 2026, 11.1% of 2,730 eligible beneficiaries (+0.8 pts since October 2025). Medica Holding Company is the largest parent organization with 66% of reported enrollment; 3 parent organizations have 11 or more members and the HHI is 5,255 (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 4 to 4.
Parent organizations in Box Butte County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Medica Holding Company | 193 | +10 | 66.3% |
| UnitedHealth Group, Inc. | 84 | +12 | 28.9% |
| CVS Health Corporation | 14 | +2 | 4.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,358 beneficiaries in Box Butte County were assigned to 19 Medicare Shared Savings Program ACOs, 73.5% of assignable Original Medicare beneficiaries. Together, roughly 76% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.