Staff Executive Committee

Stephen Walker - Chief Executive Officer

Stephen Walker is the Chief Executive Officer of St Andrew’s Hospital in Adelaide a position which he has held for 20 years. Stephen has held a number of senior health management positions in both the public and private sector in Australia and New Zealand. He is currently:

  • Board member of the Australian Council of Healthcare Standards (ACHS) and ACHS International
  • Chair ACHS Finance, Audit and Risk Committee
  • Member Australian Commission of Safety & Quality in Health Care (ACSQHC) Private Sector Committee
  • Fellow of the Australian College of Health Service Management (ACHSM)
  • A member of the Australian Institute of Company Directors
  • Member of Federal Council Australian Private Hospitals Association (APHA)
  • Past President APHA SA Branch
  • Board member Prostate Cancer Foundation Australia (SA)

Stephen holds the following qualifications:

  • Graduate Diploma in Accountancy
  • Bachelor of Business (Health Management)
  • Associate Diploma in Engineering


Ms Jacquie Wiley - Director Nursing and Clinical Services

Jacquie has experience in public, regional and private healthcare and has worked at St Andrew's for 20 years in a variety of leadership roles. Jacquie has responsibility for over 450 nursing and allied health staff and has been a clinical lead for the development of the Chemotherapy Suite and the Eastern Clinical Development as well as a pivotal member of the Theatre Masterplan group.  Jacquie has a passion for quality and safety, clinical governance and strategic planning. Jacquie holds formal qualifications in Intensive Care Nursing, Mediation, has an MBA, as well as being a Graduate of the Australian Institute of Company Directors.


Garry Crispin - Director of Finance

Garry Crispin joined St Andrew's Hospital as the Director of Finance in July 2012. Garry has experience in both public and private health, having worked for eight years at SA Health and three years as the Director of Finance at Calvary Wakefield Hospital. His keen interest and expertise in costing systems were developed in the manufacturing sector with international market leading corporations (Sola Optical and Tenneco Automotive) over a period of twenty years. After graduating in Accountancy from the University of SA, Garry studied with the Australian Institute of Management to support performance at an Executive level. He is now completing a capstone Management Project to achieve his  Masters of Health Administration though Flinders University.


Rachel Stephenson - Human Resources Director

Rachel Stephenson joined St Andrew's Hospital as the HR Manager in April 2017 and was promoted to the position of HR Director in December 2019. Rachel holds a Bachelor of Commerce specialising in human resource management, post-graduate qualifications in workplace training and assessment, and is a chartered member of the Australian Human Resources Institute (AHRI). Rachel has extensive experience managing human resources functions across a wide range of industries including professional and banking services, mining, engineering, and government. Rachel has a keen interest in working collaboratively with leaders to build and maintain cultures that enable employees to perform at their best and love coming to work every day. Rachel is also passionate about ensuring an environment in which workplace safety is optimised, and employees feel empowered to make suggestions to control workplace safety hazards.