Welcome to the Health Plan of San Mateo
About us About Us

Learn about our history, departments, and leadership.

Members Members & Participants

Information about Medi-Cal, CareAdvantage, Healthy Families, Healthy Kids, HealthWorx, the San Mateo ACE Program, and who to call for questions about eligibility and coverage.

Providers Providers

Claims, authorizations, formularies, and other provider resources.