• Year founded: 1939
  • Service area: California
  • Annual revenue: $21+ billion
  • Membership: 4.5 million 
  • Total employees: 7,500
  • President and Chief Executive Officer: Paul Markovich
  • Blue Shield is a California taxpaying nonprofit corporation
  • Blue Shield and its affiliates provide health, dental, vision, Medicaid and Medicare health care service plans in California
  • National affiliation: Independent Member of the BlueCross BlueShield Association
  • Corporate Name: California Physicians' Service
  • Blue Shield of California Foundation: Over the last three years, Blue Shield has contributed more than $120 million to the Blue Shield of California Foundation to fund nonprofit organizations that help strengthen the health safety net and address and prevent domestic violence.

View our fact sheet (PDF, 2.8 MB)

Financial strength ratings (as of April 2019)

  • A+ rating from Fitch Ratings for Blue Shield of California 
  • A (excellent) rating from AM Best for California Physicians' Service
  • A+ (excellent) rating by Weiss Ratings for California Physicians' Service

Primary address and phone numbers

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


Large Group Business Unit
100 North Sepulveda Blvd.
El Segundo, CA 90245
(310) 744-2580


Individual, Small Group and Government Business Unit
6300 Canoga Avenue
Woodland Hills, CA 91367
(818) 598-8000


CalPERS Business Unit and Consumer Operations
4203 Town Center Boulevard
El Dorado Hills, CA 95762
(916) 350-7790

Care1st Health Plan
601 Potrero Grande Drive
Monterey Park, CA 91755
(323) 889-6638
Blue Shield also has offices in Rancho Cordova, Fresno, Costa Mesa, Lodi, Ontario, Redding, Sacramento, San Diego, San Jose, Ventura and Walnut Creek.

Blue Shield of California Life & Health Insurance Company

Blue Shield of California Life & Health Insurance Company (Blue Shield Life) is a California corporation founded in 1954 and is licensed as a life and disability insurer. Blue Shield Life is a wholly-owned subsidiary of Blue Shield of California. CA Insurer #: 1450-6, NAIC #: 61557. Corporate headquarters is 601 12th Street, Oakland, CA 94607.