Welcome to Blue Shield of California. We are here to help, whether you're already a member or just want to know more about our plans.

Head office

Blue Shield of California

601 12th Street
Oakland, CA 94607
(510) 607-2000

Healthcare fraud

If you suspect illegal or wrongful billing practices, call our Fraud Hotline, email us, or fill out an online form in our Fraud section.

Report fraud

Call our Fraud Hotline or email us to report suspected fraud.

Technical support

Fill out our technical support form or call us for assistance with technical difficulties with your password or registration, or if you are having trouble getting to a page or downloading a file.

Blue Shield holiday schedule

Please note that we may have to forward your call in order to serve you best. Operation centers will be closed in observance of Blue Shield of California's holiday schedule.

Health plan sales

Call to speak with a sales agent about your health plan choices.

  • Toll free: (888) 568-3560
    Monday - Friday, 8 a.m. to 5:30 p.m. PST
  • TTY: 711
    Monday - Friday, 8 a.m. to 5 p.m. PST


Blue Shield Corporate Headquarters

Blue Shield of California
P.O.Box 272540
Chico, CA 95927-2540