HPSJ is governed by a diverse 11-member San Joaquin County Health Commission, which was formed and appointed by the San Joaquin County Board of Supervisors. A Chief Executive Officer and a professional Executive Staff, all of who have considerable experience working in managed care, administer Health Plan of San Joaquin.

HPSJ Commissioners are:

• Ken Cohen, Chairman
  San Joaquin County Health Care Services
• Paul Gutierrez
  Community Outreach Consultant
• Patricia Hatton, M.D.
  Obstetrics & Gynecology
• Rosa Lee
  Assist. County Administrator, San Joaquin County Administrator's Office
• John LeVeck
  Attorney, Community Representation
• Rene Marasigan, M.D.
  Pediatrician
• Victor Mow
  Supervisor, San Joaquin County Board of Supervisors
• Larry Ruhstaller
  Supervisor, San Joaquin County Board of Supervisors
• Marvin H. Primack, M.D.
  Anesthesiologist
• Jerry A. Royer, M.D.
  Chief Medical Officer, San Joaquin General Hospital
• Scott Seamons
  Regional Vice President, Hospital Council