Medicare Advantage in Lee County, Iowa
2,149 people in Lee County, Iowa were enrolled in Medicare Advantage in October 2026, 24.2% of 8,892 eligible beneficiaries (−0.5 pts since October 2025). Humana Inc. is the largest parent organization with 32% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,389 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 300 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 17 to 9.
Parent organizations in Lee County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 681 | +161 | 32.2% |
| UnitedHealth Group, Inc. | 612 | −499 | 28.9% |
| Centene Corporation | 414 | +270 | 19.5% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 200 | 0 | 9.4% |
| CVS Health Corporation | 139 | +55 | 6.6% |
| Mitchell Family Office | 40 | −1 | 1.9% |
| Elevance Health, Inc. | 32 | −14 | 1.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,617 beneficiaries in Lee County were assigned to 29 Medicare Shared Savings Program ACOs, 29.7% of assignable Original Medicare beneficiaries. Together, roughly 47% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.