Medicare Advantage in Shelby County, Indiana
6,183 people in Shelby County, Indiana were enrolled in Medicare Advantage in October 2026, 56.7% of 10,901 eligible beneficiaries (−0.9 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 46% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 3,008 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,055 members here are in plans that terminate or leave the county. MA plans offered go from 46 to 38.
Parent organizations in Shelby County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 2,813 | −91 | 45.8% |
| Humana Inc. | 1,534 | +99 | 25.0% |
| Elevance Health, Inc. | 988 | −217 | 16.1% |
| CVS Health Corporation | 190 | −19 | 3.1% |
| Zing Health Consolidator, Inc | 180 | +66 | 2.9% |
| Devoted Health, Inc. | 175 | new | 2.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 145 | −6 | 2.4% |
| Centene Corporation | 65 | +45 | 1.1% |
| Rifkin Managed Care Holding, LLC | 39 | new | 0.6% |
| SIHO Holding, Inc. | 19 | new | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,819 beneficiaries in Shelby County were assigned to 24 Medicare Shared Savings Program ACOs, 78.4% of assignable Original Medicare beneficiaries. Together, roughly 91% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.