Medicare Advantage in Imperial County, California
14,284 people in Imperial County, California were enrolled in Medicare Advantage in October 2026, 37.2% of 38,409 eligible beneficiaries (+1.7 pts since October 2025). Champion Health Plans-USA, LLC. is the largest parent organization with 30% of reported enrollment; 14 parent organizations have 11 or more members and the HHI is 2,034 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 3,273 members here are in plans that terminate or leave the county, and Molina Healthcare, Inc., SCAN Group leave. MA plans offered go from 8 to 5.
Parent organizations in Imperial County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Champion Health Plans-USA, LLC. | 4,298 | new | 30.3% |
| Molina Healthcare, Inc. | 3,265 | −2,199 | 23.0% |
| Imperial Health Plan of California | 2,963 | −313 | 20.9% |
| Centene Corporation | 1,212 | −1,362 | 8.5% |
| UnitedHealth Group, Inc. | 904 | −461 | 6.4% |
| Elevance Health, Inc. | 634 | +495 | 4.5% |
| IMPERIAL COUNTY LOCAL HEALTH AUTHORITY | 511 | new | 3.6% |
| California Physicians' Service | 223 | +37 | 1.6% |
| Clinicas de Salud del Pueblo, Inc. | 43 | new | 0.3% |
| SCAN Group | 43 | +7 | 0.3% |
| CVS Health Corporation | 30 | +4 | 0.2% |
| Kaiser Foundation Health Plan, Inc. | 28 | −11 | 0.2% |
| Alignment Healthcare USA, LLC | 16 | +3 | 0.1% |
| Sharp Healthcare | 12 | 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, 5,812 beneficiaries in Imperial County were assigned to 51 Medicare Shared Savings Program ACOs, 38.8% of assignable Original Medicare beneficiaries. Together, roughly 62% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.