ACC Board

The ACC Board governs how we function. It delegates day-to-day leadership and management to the Chief Executive.  

The Board has up to eight non-executive members, each appointed by the Minister for three years. The Minister can re-appoint a Board member, or shorten their term.

Chair – Dame Paula Rebstock, DNZM

Appointed September 2012
Member of the ACC Board Investment Committee (BIC), Governance and Remuneration Committee (GRC) and Health Sector Strategy Advisory Committee

Dame Paula is an Auckland-based economist and company director, who was made a Dame Companion of the New Zealand Order of Merit in 2015.

She has a BSc (Bachelor of Science, Economics) from the University of Oregon, and a Diploma and a Master of Science (Economics) from the London School of Economics.

Dame Paula is Chair of the:

  • Ngāti Whātua Ōrākei Whai Maia
  • NZ Defence Governance Board
  • Auckland District Health Board’s Finance, Risk and Assurance Committee
  • National Hauora Coalition.

She's a member of the:

  • Auckland District Health Board’s Human Resource Committee
  • Vector Energy Board
  • Auckland Transport Board
  • SeaLink Board.

Temporary Deputy Chair – James Miller

Appointed March 2013
Chair of ACC Board Investment Committee (BIC) and Member of the Governance and Remuneration Committee (GRC)

James is an experienced company director. He holds a Bachelor of Commerce from the Otago University, and is a graduate of the Advanced Management Program, Harvard Business School (USA). He brings 15 years’ experience in capital markets to the Board.

James chairs NZX and is a Director of Mercury Energy and NZ Refining.

James is also a:

  • Fellow of the Institute of Finance Professionals New Zealand Inc.
  • Fellow of the Institute of Chartered Accountants of New Zealand
  • Certified Securities Analyst Professional
  • Accredited Director of the Institute of Directors in NZ Inc
  • Qualified chartered accountant.

Before this, he was:

  • Director of Craigs Investment Partners in Auckland
  • A member of the Financial Markets Authority Board
  • Head of Equities at ABN AMRO
  • Head of Research at ABN AMRO
  • Research Analyst at Barclays de Zoete Wedde (BZW).

Dr Tracey Batten

Appointed February 2019
Chair of the ACC Board Health Sector Strategy Advisory Committee and Member of the Governance and Remuneration Committee (GRC)

Dr Tracey Batten is a qualified doctor, which she obtained at the University of Melbourne. She later acquired a Masters in Health Administration from the University of New South Wales and a Master of Business Administration from Harvard University.

She is:

  • a Fellow of the Australian Institute of Company Directors
  • a Chartered Member of the New Zealand Institute of Directors
  • a director of Medibank Private Limited (Australia)
  • a director of Abano Healthcare Group Limited
  • on the Board of NIWA.

Her previous roles include:

  • Chief Executive of Imperial College Healthcare NHS Trust (UK)
  • Chief Executive of St Vincent’s Health, the largest charitable hospital group in Australia.

Tracey has worked closely with businesses in the hospital, aged care and medical research sectors in the UK and Australia.

John Brabazon

Appointed February 2019
Member of the ACC Board Investment Committee (BIC) and Risk Assurance and Audit Committee (RAAC)

John is a Chartered Fellow of the NZ Institute of Directors and is an Associate Chartered Accountant, Chartered Accountants Australia & New Zealand. John’s background includes investment banking at Banque Indosuez, Brierley Investments and Bancorp. He has had involvement in all aspects of mergers, acquisitions, capital raisings and due diligence assignments in New Zealand and internationally for over 30 years.

John is a member of the ACC Board Investment Committee and the ACC Board Risk Assurance and Audit Committee.

John is:

  • An Executive Director of Clavell Capital merchant bankers
  • A Director of Dairy Farms NZ Ltd.

His previous directorship roles include:

  • Auckland International Airport
  • Hilton Haulage
  • Manukau City Investments.

David May

Appointed January 2018
Member of the ACC Board Risk Assurance and Audit Committee (RAAC) and Investment Committee (BIC)

David is an actuary by training, and David has enjoyed a long career in the insurance superannuation and investment industries.

He has extensive experience as a Director and CEO in the public and private sector.

He is also a Director of Save the Children NZ.

His previous roles include:

  • Chair of Guardians of New Zealand Superannuation Fund
  • Deputy Chair Government Superannuation Fund
  • Director Southern Cross Hospitals and Southern Cross Health Insurance
  • Director Sovereign Insurance
  • CEO Colonial NZ
  • Acting CEO ACC.

Anita Mazzoleni

Appointed July 2014
Chair of ACC Board Risk Assurance and Audit Committee (RAAC) and Member of the Health Sector Strategy Advisory Committee.

Anita has been Chair of the ACC Board Risk Assurance and Audit Committee since she was appointed and is a member of the ACC Board HSS Advisory Committee.

Anita was appointed in July 2014 until 18 July 2020. Her term now continues on a monthly basis until a replacement is appointed. 

Nō Waikato ia. Ko Venetian Navy te waka, ko Adriatic rāua ko Waitematā ngā moana, ko Rangitoto te maunga, ko Waikato te awa. Ko Ngāti Pākehā te iwi. 

Anita has been an independent company director since 2004. She has a Bachelor of Commerce and Bachelor of Law and was a Fellow of Chartered Accountants Australia and New Zealand and a Barrister & Solicitor of the Supreme Court of New Zealand. She is currently an investor, apiarist and is writing a metaphysical trilogy.


Kristy McDonald ONZM QC

Appointed September 2012
Chair of the ACC Board Governance and Remuneration Committee (GRC)

Kristy is a Queen’s Counsel and Wellington-based barrister and litigation lawyer with extensive experience in criminal, health, public and constitutional, and administrative law.

She has provided advice and representation for private clients and the Crown in a wide range of matters over nearly 40 years in practice. She has undertaken and assisted with a number of independent Ministerial and other inquiries and has chaired and advised a number of statutory bodies and tribunals.

Kristy was made an Officer of the New Zealand Order of Merit in 2019.

Kristy is Chair of the ACC Board Governance and Remuneration Committee.

Kristy is a:

  • Chair of Kiwifruit New Zealand – a primary industry regulator
  • Chair of the Ministry of Social Development Audit and Risk Committee
  • Deputy Chair of the Wairarapa Building Society
  • Director Racing Industry Transition Agency
  • Member NZ Markets Disciplinary Tribunal.
Last published: 5 December 2019