Medicare Advantage in Gibson County, Indiana
3,377 people in Gibson County, Indiana were enrolled in Medicare Advantage in October 2026, 43.2% of 7,822 eligible beneficiaries (+0.1 pts since October 2025). Humana Inc. is the largest parent organization with 34% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,314 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 101 members here are in plans that terminate or leave the county. MA plans offered go from 40 to 31.
Parent organizations in Gibson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,123 | +150 | 33.5% |
| UnitedHealth Group, Inc. | 984 | +34 | 29.4% |
| Elevance Health, Inc. | 397 | −369 | 11.8% |
| UMWA Health and Retirement Funds | 301 | −12 | 9.0% |
| SIHO Holding, Inc. | 298 | new | 8.9% |
| CVS Health Corporation | 169 | −38 | 5.0% |
| Rifkin Managed Care Holding, LLC | 44 | new | 1.3% |
| Centene Corporation | 35 | −14 | 1.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,336 beneficiaries in Gibson County were assigned to 25 Medicare Shared Savings Program ACOs, 60.8% of assignable Original Medicare beneficiaries. Together, roughly 78% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.