Medicare Advantage in Hanson County, South Dakota
343 people in Hanson County, South Dakota were enrolled in Medicare Advantage in October 2026, 31.8% of 1,077 eligible beneficiaries (−1.8 pts since October 2025). Medica Holding Company is the largest parent organization with 36% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 2,845 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 103 members here are in plans that terminate or leave the county, and Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation leave. MA plans offered go from 16 to 9.
Parent organizations in Hanson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Medica Holding Company | 109 | +32 | 35.5% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 87 | −24 | 28.3% |
| UnitedHealth Group, Inc. | 80 | −14 | 26.1% |
| CVS Health Corporation | 31 | −9 | 10.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 284 beneficiaries in Hanson County were assigned to 70 Medicare Shared Savings Program ACOs, 52.5% of assignable Original Medicare beneficiaries. Together, roughly 68% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.