Medicare Advantage in Jefferson, Louisiana
67,905 people in Jefferson, Louisiana were enrolled in Medicare Advantage in October 2026, 71.2% of 95,376 eligible beneficiaries (−0.2 pts since October 2025). Humana Inc. is the largest parent organization with 53% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 4,394 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 7,309 members here are in plans that terminate or leave the county. MA plans offered go from 34 to 33.
Parent organizations in Jefferson
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 35,806 | +3,956 | 52.8% |
| UnitedHealth Group, Inc. | 26,986 | −1,890 | 39.8% |
| CVS Health Corporation | 2,219 | −361 | 3.3% |
| Louisiana Health Service & Indemnity Company | 1,435 | +104 | 2.1% |
| Centene Corporation | 520 | −77 | 0.8% |
| Devoted Health, Inc. | 397 | new | 0.6% |
| Elevance Health, Inc. | 246 | +67 | 0.4% |
| Mitchell Family Office | 120 | +25 | 0.2% |
| Catholic Charities Archdiocese of New Orleans | 37 | −2 | 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, 10,563 beneficiaries in Jefferson were assigned to 71 Medicare Shared Savings Program ACOs, 62.2% of assignable Original Medicare beneficiaries. Together, roughly 89% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.