Medicare Advantage in Montgomery County, Iowa
887 people in Montgomery County, Iowa were enrolled in Medicare Advantage in October 2026, 31.3% of 2,832 eligible beneficiaries (+0.3 pts since October 2025). CVS Health Corporation is the largest parent organization with 27% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 1,810 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 211 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 16 to 13.
Parent organizations in Montgomery County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 237 | −170 | 27.4% |
| Centene Corporation | 177 | +115 | 20.5% |
| Humana Inc. | 138 | +56 | 16.0% |
| UnitedHealth Group, Inc. | 127 | −21 | 14.7% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 96 | +40 | 11.1% |
| Elevance Health, Inc. | 45 | −22 | 5.2% |
| Mitchell Family Office | 33 | +7 | 3.8% |
| Devoted Health, Inc. | 11 | new | 1.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 761 beneficiaries in Montgomery County were assigned to 17 Medicare Shared Savings Program ACOs, 44.8% of assignable Original Medicare beneficiaries. Together, roughly 62% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.