Medicare Advantage in Fremont County, Iowa
527 people in Fremont County, Iowa were enrolled in Medicare Advantage in October 2026, 27.0% of 1,953 eligible beneficiaries (+0.1 pts since October 2025). CVS Health Corporation is the largest parent organization with 44% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,893 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 89 members here are in plans that terminate or leave the county. MA plans offered go from 19 to 17.
Parent organizations in Fremont County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 224 | +33 | 43.8% |
| UnitedHealth Group, Inc. | 111 | −31 | 21.7% |
| Humana Inc. | 103 | +24 | 20.2% |
| Centene Corporation | 45 | +23 | 8.8% |
| Elevance Health, Inc. | 17 | −6 | 3.3% |
| Devoted Health, Inc. | 11 | new | 2.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 641 beneficiaries in Fremont County were assigned to 13 Medicare Shared Savings Program ACOs, 54.0% of assignable Original Medicare beneficiaries. Together, roughly 66% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.