Medicare Advantage in Webster, Louisiana
4,855 people in Webster, Louisiana were enrolled in Medicare Advantage in October 2026, 49.2% of 9,875 eligible beneficiaries (+0.1 pts since October 2025). Humana Inc. is the largest parent organization with 48% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 3,529 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 861 members here are in plans that terminate or leave the county. MA plans offered go from 20 to 19.
Parent organizations in Webster
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,338 | +320 | 48.5% |
| UnitedHealth Group, Inc. | 1,517 | −56 | 31.5% |
| Louisiana Health Service & Indemnity Company | 521 | +145 | 10.8% |
| CVS Health Corporation | 393 | −383 | 8.2% |
| Elevance Health, Inc. | 33 | +18 | 0.7% |
| Mitchell Family Office | 17 | −5 | 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, 2,660 beneficiaries in Webster were assigned to 24 Medicare Shared Savings Program ACOs, 69.1% of assignable Original Medicare beneficiaries. Together, roughly 84% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.