Medicare Advantage in Dallas County, Iowa
6,462 people in Dallas County, Iowa were enrolled in Medicare Advantage in October 2026, 37.5% of 17,221 eligible beneficiaries (−0.9 pts since October 2025). CVS Health Corporation is the largest parent organization with 37% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,821 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 1,727 members here are in plans that terminate or leave the county, and Blue Cross Blue Shield of Michigan Mutual Ins. Co., Molina Healthcare, Inc. leave. MA plans offered go from 24 to 25.
Parent organizations in Dallas County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 2,350 | +444 | 36.6% |
| UnitedHealth Group, Inc. | 2,206 | −535 | 34.4% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 966 | +1 | 15.0% |
| Humana Inc. | 479 | +76 | 7.5% |
| Trinity Health Corporation | 246 | +108 | 3.8% |
| Centene Corporation | 125 | +71 | 1.9% |
| Elevance Health, Inc. | 34 | −17 | 0.5% |
| Molina Healthcare, Inc. | 15 | 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, 5,930 beneficiaries in Dallas County were assigned to 56 Medicare Shared Savings Program ACOs, 75.8% of assignable Original Medicare beneficiaries. Together, roughly 85% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.