Medicare Advantage in San Bernardino County, California
239,106 people in San Bernardino County, California were enrolled in Medicare Advantage in October 2026, 67.2% of 355,900 eligible beneficiaries (−0.2 pts since October 2025). Kaiser Foundation Health Plan, Inc. is the largest parent organization with 35% of reported enrollment; 25 parent organizations have 11 or more members and the HHI is 1,857 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 11,539 members here are in plans that terminate or leave the county, and Local Initiative Health Authority for LA County, The Regents of the University of California leave. MA plans offered go from 58 to 49.
Parent organizations in San Bernardino County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Kaiser Foundation Health Plan, Inc. | 83,275 | +3,769 | 34.9% |
| SCAN Group | 40,212 | +7,681 | 16.9% |
| UnitedHealth Group, Inc. | 34,810 | −6,027 | 14.6% |
| INLAND EMPIRE HEALTH PLAN | 19,307 | +135 | 8.1% |
| Elevance Health, Inc. | 11,361 | −2,241 | 4.8% |
| Alignment Healthcare USA, LLC | 9,942 | +1,942 | 4.2% |
| Humana Inc. | 8,112 | +1,209 | 3.4% |
| Molina Healthcare, Inc. | 6,080 | −1,918 | 2.5% |
| California Physicians' Service | 5,945 | +667 | 2.5% |
| Centene Corporation | 5,778 | −2,383 | 2.4% |
| Astiva Health Holdings Incorporated | 4,275 | +2,088 | 1.8% |
| CVS Health Corporation | 3,237 | −1,551 | 1.4% |
| Clever Care Health Plan, Inc. | 3,233 | +1,362 | 1.4% |
| Total Community Options, Inc. | 884 | +3 | 0.4% |
| Champion Health Plans-USA, LLC. | 726 | new | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 8,433 beneficiaries in San Bernardino County were assigned to 178 Medicare Shared Savings Program ACOs, 14.0% of assignable Original Medicare beneficiaries. Together, roughly 72% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.