Contributing to a better, faster recovery for your employees and lower claim costs.

Our California Medical Provider Network (MPN), Berkshire Hathaway Homestate Companies MPN (0145) is a select group of medical providers who treat workers compensation injuries for carriers including Berkshire Hathaway Homestate Insurance Company, Cypress Insurance Company, Oak River Insurance Company and Redwood Fire and Casualty Insurance Company.  The goal is to keep the number of providers in the MPN small enough to gain the benefit of selectivity while still being large enough to ensure that providers will be available in locations throughout the state.

***Note: Please be advised that we have consolidated our existing California Medical Provider Networks (MPN)! Starting immediately, injured workers will receive a notice by mail informing them that BHHC’s new MPN identification code is 0145 (previously reserved only for Cypress and BHHIC clients). With this change, injured workers will not need to take any action, and medical treatment and selected medical provider will not change. Please contact Customer Care at (888) 495-8949 with any questions.***

Our goal is to provide your injured employees with excellent medical care while avoiding unnecessary, risky treatment.  This will lead to a better, faster recovery for your employees and lower claim costs for you. 

Our Medical Provider Network can have a powerful impact on reducing your claim costs while providing your employees with excellent medical care.

To obtain a copy of the complete MPN Employee Notification, or any notification that is required to be given to an employee, please call (855) 924-4272, or

For questions or complaints, an MPN Coordinator can be reached at (888) 495-8949, or

For help finding a doctor, please contact the Medical Access Assistant at (855) 924-4272, or

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