Medicare Advantage in Dubuque County, Iowa
14,299 people in Dubuque County, Iowa were enrolled in Medicare Advantage in October 2026, 60.9% of 23,493 eligible beneficiaries (+0.1 pts since October 2025). Medical Associates Clinic, P.C. is the largest parent organization with 73% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 5,555 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 127 members here are in plans that terminate or leave the county. MA plans offered go from 11 to 11.
Parent organizations in Dubuque County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Medical Associates Clinic, P.C. | 10,336 | +363 | 72.6% |
| UnitedHealth Group, Inc. | 2,076 | −412 | 14.6% |
| Elevance Health, Inc. | 896 | −18 | 6.3% |
| Humana Inc. | 856 | +386 | 6.0% |
| CVS Health Corporation | 62 | +2 | 0.4% |
| Mitchell Family Office | 16 | +3 | 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 5,150 beneficiaries in Dubuque County were assigned to 50 Medicare Shared Savings Program ACOs, 77.6% of assignable Original Medicare beneficiaries. Together, roughly 91% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.