Medicare Advantage in Rock County, Minnesota
1,460 people in Rock County, Minnesota were enrolled in Medicare Advantage in October 2026, 60.3% of 2,420 eligible beneficiaries (−1.9 pts since October 2025). Aware Integrated, Inc. is the largest parent organization with 60% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 4,374 (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 16 to 15.
Parent organizations in Rock County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Aware Integrated, Inc. | 866 | −11 | 59.8% |
| Medica Holding Company | 337 | +243 | 23.3% |
| Sanford Health | 234 | +66 | 16.1% |
| UnitedHealth Group, Inc. | 12 | −143 | 0.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 103 beneficiaries in Rock County were assigned to 6 Medicare Shared Savings Program ACOs, 15.3% of assignable Original Medicare beneficiaries. Together, roughly 66% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.