Medicare Advantage in Delaware County, Iowa
1,642 people in Delaware County, Iowa were enrolled in Medicare Advantage in October 2026, 36.8% of 4,463 eligible beneficiaries (−0.4 pts since October 2025). CVS Health Corporation is the largest parent organization with 32% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,085 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 311 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 27 to 29.
Parent organizations in Delaware County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 514 | +167 | 31.8% |
| UnitedHealth Group, Inc. | 300 | −221 | 18.6% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 272 | +25 | 16.8% |
| Medical Associates Clinic, P.C. | 253 | −12 | 15.7% |
| Humana Inc. | 226 | +50 | 14.0% |
| Centene Corporation | 27 | +7 | 1.7% |
| Elevance Health, Inc. | 24 | −8 | 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, 336 beneficiaries in Delaware County were assigned to 15 Medicare Shared Savings Program ACOs, 14.5% of assignable Original Medicare beneficiaries. Together, roughly 46% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.