Medicare Advantage in Jackson County, Indiana
5,899 people in Jackson County, Indiana were enrolled in Medicare Advantage in October 2026, 61.1% of 9,654 eligible beneficiaries (+1.4 pts since October 2025). Humana Inc. is the largest parent organization with 40% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,650 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 646 members here are in plans that terminate or leave the county. MA plans offered go from 37 to 31.
Parent organizations in Jackson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,345 | +270 | 39.9% |
| SIHO Holding, Inc. | 1,235 | +544 | 21.0% |
| Elevance Health, Inc. | 1,038 | −532 | 17.7% |
| UnitedHealth Group, Inc. | 1,021 | −120 | 17.4% |
| Centene Corporation | 79 | +44 | 1.3% |
| CVS Health Corporation | 70 | −44 | 1.2% |
| Rifkin Managed Care Holding, LLC | 61 | new | 1.0% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 30 | +1 | 0.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,833 beneficiaries in Jackson County were assigned to 22 Medicare Shared Savings Program ACOs, 83.9% of assignable Original Medicare beneficiaries. Together, roughly 94% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.