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Sonja L. Bjork, JD

Sonja L. Bjork, JD, is the chief executive officer of Partnership HealthPlan of California (PHC), a non-profit community-based Medicaid managed care plan. Prior to joining PHC, Ms. Bjork worked as a dependency attorney representing youth in the child welfare system. During her tenure at PHC, she has overseen multiple benefit implementations and expansion of the Plan’s service area. Ms. Bjork served on the executive team directing the Plan’s $280 million strategic investment of health plan reserves for the purpose of addressing social determinants of health. These included medical respite, affordable housing, and substance use disorder treatment options. Ms. Bjork received her Juris Doctorate from the UC Berkeley School of Law.

Financial Interests 

Partnership HealthPlan of California, employer
Sutter Bay Hospitals, spouse’s employer


Commission on Medical Care (Partnership HealthPlan of California), CEO