Medicare Advantage in Kauai County, Hawaii
8,693 people in Kauai County, Hawaii were enrolled in Medicare Advantage in October 2026, 48.4% of 17,959 eligible beneficiaries (−0.4 pts since October 2025). Humana Inc. is the largest parent organization with 39% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 2,635 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 1,019 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 16 to 18.
Parent organizations in Kauai County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 3,390 | −135 | 39.3% |
| Hawaii Medical Service Association | 1,926 | +123 | 22.3% |
| UnitedHealth Group, Inc. | 1,820 | −276 | 21.1% |
| Devoted Health, Inc. | 1,031 | +326 | 11.9% |
| AlohaCare | 211 | +15 | 2.4% |
| CVS Health Corporation | 85 | −1 | 1.0% |
| Centene Corporation | 84 | −40 | 1.0% |
| Elevance Health, Inc. | 58 | −1 | 0.7% |
| California Physicians' Service | 15 | −2 | 0.2% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 13 | −1 | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 131 beneficiaries in Kauai County were assigned to 55 Medicare Shared Savings Program ACOs, 2.4% of assignable Original Medicare beneficiaries. Together, roughly 50% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.