California Medical Provider Network

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 our 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.

Berkshire Hathaway has an approved California Utilization Plan you can review for more information. (September 4, 2020)

For More Information

  • Fax all treatment requests to the Berkshire Hathaway Homestate Companies’ dedicated utilization review at (415) 675-4230.
  • Contact the Medical Access Assistant at (855) 924-4272 or email us at [email protected] for assistance in finding a doctor.
  • Contact Customer Care at (888) 495-8949 or [email protected] for questions or to obtain a copy of the complete MPN Employee Notification.

As of: 11/9/2022

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Medical Networks
Our medical networks are comprised of board-certified physicians from primary treating physicians to specialists who understand how to manage workplace injuries and are dedicated to providing quality medical care to injured workers.

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