DHS is led by a talented and experienced executive team that is committed to sustaining a high performing health care system that is responsive to the needs of County residents.

DHS Organizational Chart


Christina R. Ghaly, M.D.


Christina R. Ghaly, M.D.


Hal Yee


Hal F. Yee, Jr., M.D., Ph.D.
Chief Medical Officer


Nina Park


Nina J. Park, M.D.
Director, Ambulatory Care Network


Mark Ghaly
Mark Ghaly, M.D.
Director, Community Health & Integrated Programs

Michael Owens
Michael Owens, M.D.
Director and Chief Medical Officer of Managed Care Services
Director of Enterprise Data & Information Management

Arun Patel
Arun Patel, M.D., J.D., M.B.E.
Director, Quality, Patient Safety and Risk Management

Susan Currin
Susan Currin, RN
Chief Nursing Officer and Director, Office of Nursing Affairs

NA Male
Allan Wecker
Chief Financial Officer

Pamela Griffith, M.B.A., RN, FACHE
Pamela Griffith, M.B.A., RN, FACHE
Interim Chief Information Officer
Elizabeth Jacobi, J.D.

Elizabeth Jacobi, J.D.
Director, Human Resources