Medicare Advantage in Del Norte County, California
300 people in Del Norte County, California were enrolled in Medicare Advantage in October 2026, 4.4% of 6,781 eligible beneficiaries (+0.4 pts since October 2025). Imperial Health Plan of California is the largest parent organization with 37% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 2,423 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 2 to 2.
Parent organizations in Del Norte County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Imperial Health Plan of California | 100 | +27 | 36.6% |
| UnitedHealth Group, Inc. | 61 | +15 | 22.3% |
| California Physicians' Service | 47 | +2 | 17.2% |
| Elevance Health, Inc. | 35 | −11 | 12.8% |
| CVS Health Corporation | 30 | −2 | 11.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,523 beneficiaries in Del Norte County were assigned to 29 Medicare Shared Savings Program ACOs, 32.1% of assignable Original Medicare beneficiaries. Together, roughly 35% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.