Medicare Advantage in Woodbury County, Iowa
9,245 people in Woodbury County, Iowa were enrolled in Medicare Advantage in October 2026, 45.3% of 20,428 eligible beneficiaries (−1.1 pts since October 2025). CVS Health Corporation is the largest parent organization with 53% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,368 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,219 members here are in plans that terminate or leave the county, and Blue Cross Blue Shield of Michigan Mutual Ins. Co., Centene Corporation, Molina Healthcare, Inc. leave. MA plans offered go from 15 to 11.
Parent organizations in Woodbury County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 4,857 | +655 | 52.7% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 1,499 | −75 | 16.3% |
| Humana Inc. | 1,308 | +239 | 14.2% |
| UnitedHealth Group, Inc. | 984 | −734 | 10.7% |
| Iowa Health System | 230 | +18 | 2.5% |
| Centene Corporation | 201 | −14 | 2.2% |
| Elevance Health, Inc. | 67 | −52 | 0.7% |
| Mitchell Family Office | 50 | −4 | 0.5% |
| Molina Healthcare, Inc. | 22 | new | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 6,078 beneficiaries in Woodbury County were assigned to 39 Medicare Shared Savings Program ACOs, 73.7% of assignable Original Medicare beneficiaries. Together, roughly 86% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.