Medicare Advantage in St. Joseph County, Indiana
30,313 people in St. Joseph County, Indiana were enrolled in Medicare Advantage in October 2026, 55.6% of 54,542 eligible beneficiaries (+0.6 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 46% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,969 (highly concentrated). For 2027, 46 members here are in plans that terminate or leave the county. MA plans offered go from 43 to 39.
Parent organizations in St. Joseph County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 13,934 | −863 | 46.2% |
| Humana Inc. | 6,613 | +668 | 21.9% |
| Elevance Health, Inc. | 4,947 | −1,030 | 16.4% |
| Devoted Health, Inc. | 2,459 | +2,086 | 8.2% |
| CVS Health Corporation | 1,236 | −113 | 4.1% |
| Centene Corporation | 365 | +63 | 1.2% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 281 | −3 | 0.9% |
| Rifkin Managed Care Holding, LLC | 202 | −22 | 0.7% |
| Trinity Health Corporation | 131 | +6 | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 13,466 beneficiaries in St. Joseph County were assigned to 94 Medicare Shared Savings Program ACOs, 73.6% of assignable Original Medicare beneficiaries. Together, roughly 88% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.