Medicare Advantage in Winneshiek County, Iowa
802 people in Winneshiek County, Iowa were enrolled in Medicare Advantage in October 2026, 14.5% of 5,526 eligible beneficiaries (−5.7 pts since October 2025). CVS Health Corporation is the largest parent organization with 46% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 3,091 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 66 members here are in plans that terminate or leave the county, and Blue Cross Blue Shield of Michigan Mutual Ins. Co. leaves. MA plans offered go from 14 to 14.
Parent organizations in Winneshiek County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 360 | +28 | 45.6% |
| Humana Inc. | 219 | −92 | 27.8% |
| UnitedHealth Group, Inc. | 94 | −42 | 11.9% |
| University of Wisconsin Hospitals and Clincs Autho | 66 | +13 | 8.4% |
| Elevance Health, Inc. | 39 | −7 | 4.9% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 11 | −189 | 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, 1,862 beneficiaries in Winneshiek County were assigned to 22 Medicare Shared Savings Program ACOs, 56.5% of assignable Original Medicare beneficiaries. Together, roughly 63% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.