Medicare Advantage in Brown County, Indiana
2,336 people in Brown County, Indiana were enrolled in Medicare Advantage in October 2026, 46.9% of 4,976 eligible beneficiaries (+1.0 pts since October 2025). Humana Inc. is the largest parent organization with 35% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,646 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 49 members here are in plans that terminate or leave the county. MA plans offered go from 44 to 40.
Parent organizations in Brown County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 804 | +174 | 34.9% |
| UnitedHealth Group, Inc. | 750 | +14 | 32.5% |
| Elevance Health, Inc. | 418 | −204 | 18.1% |
| CVS Health Corporation | 101 | −21 | 4.4% |
| SIHO Holding, Inc. | 73 | +44 | 3.2% |
| Centene Corporation | 50 | +23 | 2.2% |
| Devoted Health, Inc. | 48 | new | 2.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 35 | −7 | 1.5% |
| Rifkin Managed Care Holding, LLC | 26 | new | 1.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 721 beneficiaries in Brown County were assigned to 30 Medicare Shared Savings Program ACOs, 44.0% of assignable Original Medicare beneficiaries. Together, roughly 70% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.