Medicare Advantage in Clay County, Iowa
844 people in Clay County, Iowa were enrolled in Medicare Advantage in October 2026, 19.2% of 4,386 eligible beneficiaries (+0.3 pts since October 2025). Blue Cross Blue Shield of Michigan Mutual Ins. Co. is the largest parent organization with 33% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,653 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 265 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 19 to 18.
Parent organizations in Clay County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 269 | +133 | 32.7% |
| UnitedHealth Group, Inc. | 267 | −49 | 32.5% |
| CVS Health Corporation | 177 | −73 | 21.5% |
| Elevance Health, Inc. | 47 | −11 | 5.7% |
| Humana Inc. | 39 | +10 | 4.7% |
| Medica Holding Company | 23 | +10 | 2.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,308 beneficiaries in Clay County were assigned to 22 Medicare Shared Savings Program ACOs, 78.0% of assignable Original Medicare beneficiaries. Together, roughly 82% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.