Medicare Advantage in Montgomery County, Indiana
4,724 people in Montgomery County, Indiana were enrolled in Medicare Advantage in October 2026, 51.9% of 9,104 eligible beneficiaries (+1.4 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 45% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 3,181 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 96 members here are in plans that terminate or leave the county. MA plans offered go from 38 to 36.
Parent organizations in Montgomery County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 2,126 | +138 | 45.2% |
| Humana Inc. | 1,348 | +125 | 28.6% |
| Elevance Health, Inc. | 778 | −79 | 16.5% |
| CVS Health Corporation | 307 | −38 | 6.5% |
| Rifkin Managed Care Holding, LLC | 72 | new | 1.5% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 39 | 0 | 0.8% |
| Centene Corporation | 36 | +20 | 0.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,245 beneficiaries in Montgomery County were assigned to 28 Medicare Shared Savings Program ACOs, 66.3% of assignable Original Medicare beneficiaries. Together, roughly 84% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.