Medicare Advantage in El Dorado County, California
22,043 people in El Dorado County, California were enrolled in Medicare Advantage in October 2026, 41.7% of 52,918 eligible beneficiaries (−2.3 pts since October 2025). Kaiser Foundation Health Plan, Inc. is the largest parent organization with 63% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 4,415 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 1,146 members here are in plans that terminate or leave the county, and SCAN Group leaves. MA plans offered go from 5 to 5.
Parent organizations in El Dorado County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Kaiser Foundation Health Plan, Inc. | 13,858 | +501 | 63.1% |
| UnitedHealth Group, Inc. | 3,889 | −127 | 17.7% |
| Elevance Health, Inc. | 1,707 | −627 | 7.8% |
| Imperial Health Plan of California | 1,480 | +1,389 | 6.7% |
| California Physicians' Service | 664 | +53 | 3.0% |
| CVS Health Corporation | 203 | −1,925 | 0.9% |
| Humana Inc. | 52 | +23 | 0.2% |
| SCAN Group | 44 | new | 0.2% |
| Alignment Healthcare USA, LLC | 27 | new | 0.1% |
| Total Community Options, Inc. | 18 | +4 | under 0.1% |
| SAN JOAQUIN COUNTY HEALTH COMMISSION | 11 | new | 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, 13,512 beneficiaries in El Dorado County were assigned to 92 Medicare Shared Savings Program ACOs, 65.5% of assignable Original Medicare beneficiaries. Together, roughly 80% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.