Medicare Advantage in Black Hawk County, Iowa
14,306 people in Black Hawk County, Iowa were enrolled in Medicare Advantage in October 2026, 49.5% of 28,903 eligible beneficiaries (−1.7 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 46% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,047 (highly concentrated). For 2027, 1,654 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 22 to 21.
Parent organizations in Black Hawk County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 6,616 | −2,916 | 46.4% |
| CVS Health Corporation | 3,611 | +1,767 | 25.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 1,495 | +24 | 10.5% |
| Humana Inc. | 1,476 | +426 | 10.4% |
| Trinity Health Corporation | 845 | +462 | 5.9% |
| Mitchell Family Office | 93 | +10 | 0.7% |
| Elevance Health, Inc. | 89 | −90 | 0.6% |
| Iowa Health System | 35 | 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, 7,765 beneficiaries in Black Hawk County were assigned to 51 Medicare Shared Savings Program ACOs, 74.1% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.