Medicare Advantage in Porter County, Indiana
16,041 people in Porter County, Indiana were enrolled in Medicare Advantage in October 2026, 39.9% of 40,252 eligible beneficiaries (−0.9 pts since October 2025). Elevance Health, Inc. is the largest parent organization with 36% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 2,284 (highly concentrated). For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 38 to 35.
Parent organizations in Porter County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Elevance Health, Inc. | 5,725 | −146 | 35.8% |
| UnitedHealth Group, Inc. | 3,019 | −668 | 18.9% |
| Humana Inc. | 2,966 | +328 | 18.6% |
| CVS Health Corporation | 2,531 | −453 | 15.8% |
| Devoted Health, Inc. | 1,049 | +962 | 6.6% |
| Centene Corporation | 193 | +71 | 1.2% |
| Rifkin Managed Care Holding, LLC | 148 | −22 | 0.9% |
| Health Care Service Corporation | 109 | 0 | 0.7% |
| Zing Health Consolidator, Inc | 107 | +17 | 0.7% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 101 | −3 | 0.6% |
| Highmark Health | 16 | new | 0.1% |
| Franciscan Alliance, Inc. | 11 | new | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 11,588 beneficiaries in Porter County were assigned to 84 Medicare Shared Savings Program ACOs, 65.0% of assignable Original Medicare beneficiaries. Together, roughly 79% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.