Medicare Advantage in St. James, Louisiana
3,530 people in St. James, Louisiana were enrolled in Medicare Advantage in October 2026, 70.5% of 5,006 eligible beneficiaries (+0.9 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 56% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,935 (highly concentrated). For 2027, 652 members here are in plans that terminate or leave the county. MA plans offered go from 28 to 22.
Parent organizations in St. James
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,978 | −58 | 56.3% |
| Humana Inc. | 900 | +64 | 25.6% |
| CVS Health Corporation | 294 | +4 | 8.4% |
| Louisiana Health Service & Indemnity Company | 220 | +37 | 6.3% |
| Centene Corporation | 48 | +6 | 1.4% |
| Devoted Health, Inc. | 34 | new | 1.0% |
| Elevance Health, Inc. | 21 | +10 | 0.6% |
| Highmark Health | 20 | −2 | 0.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 165 beneficiaries in St. James were assigned to 9 Medicare Shared Savings Program ACOs, 15.9% of assignable Original Medicare beneficiaries. Together, roughly 75% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.