Our People

Mark is an experienced Non-Executive Director and CEO, predominantly in healthcare and life sciences organisations including the Australian Securities Exchange (ASX) listed companies. He is a Fellow of the Australian Institute of Company Directors; Fellow Australasian College of Health Services Management; Fellow Australian Institute of Management and Fellow of the Royal Society (NSW). Mark is Adjunct Professor in management at Macquarie University, Sydney, Australia and spent 8 years on the board of Macquarie University Private Hospital, integral to establishing MQ Health, Australia’s first academic health sciences centre.

Mark is Chairman and Non-Executive Director of Sonic Healthcare Limited (ASX: SHL), a global medical diagnostics and healthcare organisation. He is also a non-executive director on the board of Next Science Limited a medical technology company and Chairman of St Luke’s Care a not for profit health and aged care organisation.

Mark is an active volunteer firefighter with the NSW Rural Fire Service in the Southern Highlands of New South Wales, Australia. He has volunteered with St John Ambulance for over 45 years.

Sir Andrew joined the NHS as a fast-track graduate management trainee and has been a chief executive for more than 20 years. He has worked at the local, regional and national level. He has worked by invite at the Department of Health, Whitehall on a number of occasions. He is a visiting Professor in Leadership Development at the Universities of York and Sheffield. Sir Andrew was Chief Executive of Sheffield Teaching Hospitals NHS Foundation Trust from 2004 to 2018 and is currently the part time Chief Executive of the South Yorkshire and Bassetlaw Integrated Care System. He joined the SJEHG Board as Chair in September 2018.

David Verity was appointed to the Board in June 2016 and became the Order’s Hospitaller in September 2018. He is a surgeon at Moorfields Eye Hospital, the President of the British Oculoplastic Surgery Society, the Treasurer for the European Society (ESOPRS), and the immediate past Editor-in-Chief of the international journal ‘ORBIT’. In 2015, with the ophthalmic Hospitallers of the Order, he founded the St John Ophthalmic Association (SOA), a professional organisation dedicated to the postgraduate work of SJEHG. The SOA is formed of 5 worldwide hubs, engaging medical expertise across the Priories and supporting our staff with training courses and medical exchanges. As a surgeon, he also undertakes regular working visits to our hospitals in Jerusalem and Gaza.

Chris Hoult joined the Board of Trustees in January 2022 as Treasurer bringing over 25 years of board level experience in roles that have encompassed Finance, IT, Procurement, Estates and Facilities as well as international trading which included 2 years spent living and working in Denmark.

He qualified as a Chartered Accountant in 1987 and since then he has worked in a variety of commercial and not-for-profit organisations including 4 years as the Director of Finance of Plymouth Hospitals NHS Trust and 9 years advising NHS organisations in London on major strategic reorganisation projects.  He is currently the Director of Finance of Royal Voluntary Service a UK focused charity that promotes volunteering as well as supporting the NHS and its patients.

Avey Bhatia is Chief Nurse at Guy’s and St Thomas’ Trust. Avey qualified in 1991 and her clinical experience includes theatres, general intensive care, coronary care and cardiothoracic nursing. She held various staff nurse and sister posts at hospitals in London before becoming Chief Nurse and Director of Infection Prevention and Control at St George’s University Hospitals NHS Foundation Trust in 2017. Avey holds a postgraduate diploma in health services management and a Masters in Public Administration.

She is also the Trust’s Director of Patient Experience, and the executive lead for adults and children’s safeguarding, and for infection, prevention and control. Beyond Guy’s and St Thomas’, Avey is Vice President for the Florence Nightingale Foundation and Honorary Vice President of The Nightingale Fellowship. Avey joined the Board in January 2022.

Jamie Ingham Clark is a Chartered Accountant and pursued a career in the Lloyd’s insurance market, where he had many years board experience as either Finance or Compliance Director. He was first elected to the Court of Common Council (the local authority for the City of London) in 2013 and was the Chairman of its Finance Committee until March 2022.. He sits on a number of other committees within the City. He is a Liveryman of the Clothworker’s and Pattenmaker’s Companies and is a member of the Knights Templar. Jamie has been involved with the Order of St John for over 40 years as a member of the Ceremonial Staff and is currently the Sword Bearer. He joined the board in 2017.

Diane Corner has been British Consul-General in Jerusalem since July 2021. Diane was British Ambassador to the Democratic Republic of Congo (2013-14) and prior to that British High Commissioner to Tanzania. From 2014-17 Diane was Deputy Special Representative of the UN Secretary-General (Political and Protection of Civilians) in the Central African Republic. Other diplomatic postings have included Kuala Lumpur (1985-88), New York (1989), Berlin (1994-98), Harare (2001-3) and Sierra Leone (2008-9). Diane holds a BAHons in French and Politics from the University of Bristol, and an MA in International Relations and Contemporary War from King’s College London. She also has a diploma from the NATO Defence College Senior College which she attended in 2000. Diane joined the Board in July 2021.

Helen is an international lawyer and board member with over 30 years’ experience in the legal and financial services sectors. She is a solicitor, a CEDR accredited mediator and a Senior Honorary Fellow of the British Institute of International and Comparative Law. Helen is currently also a board member of the UK Human Tissue Authority, a director of LegalUK and a member of the development board of the Bingham Centre for the Rule of Law. Previously she was Global Head of Legal, Dispute Resolution at Standard Chartered Bank, and a non-executive director of the London Court of International Arbitration. She joined the Board in January 2022.

Paul Hackwood is CEO and General Secretary of Toc H, a national Community Development Charity. Paul is ordained in the Church of England and a Canon at Leicester Cathedral. He is a trustee of the Henry Smith Charity where he chairs the Clergy and Christian Projects grant making committee. He was recently appointed as a fellow of the Edward Cadbury Centre for the Public Understanding of Religion at the University of Birmingham. Paul joined the Board in January 2022 and chairs the Fundraising Committee.

Ismat Levin trained and practiced as a solicitor at City law firm Dentons following which she has spent 25 years as General Counsel for commercial, international growth and technology-led industries listed on NASDAQ or in private equity contexts. She has substantial experience of intellectual property licensing, governance, risk management and regulation. Ismat has served as a committee member for the Royal College of Radiologists (2016-2020) and since April 2015 as a Magistrate on the North West London Bench. In February 2022, Ismat joined the Board of LXi REIT plc, a real estate investment trust and FTSE 250 company, listed on the London Stock Exchange, as Non-Executive Director. Ismat joined the Board in January 2022 and Chairs the Digital and IT Committee.

John Macaskill was a Founding Partner and Managing Director of Groton Partners, a Private Equity firm based in New York. Mr Macaskill joined Groton Partners in March 2005 and focused his efforts on alternative investments, including Private Equity. Mr Macaskill is a General Partner in a number of private equity and real estate funds and has spent the last forty years in the financial services industry in New York and London. He is a member (retired) of the Institute of Chartered Accountants of Scotland, and a Chapter Member of the Priory in the United States of the Order of St John. He joined the board in January 2018. He has been appointed as the treasurer of the Priory of the USA.

Tim Jones is a retired solicitor, Chair of the trustees of homelessness charity The Connection at St Martins, a trustee of the Safer London charity and of the National Botanic Garden of Wales, a director of the Sport and Recreation Alliance and a school governor. Tim was formerly a partner in the law firm Freshfields Bruckhaus Deringer LLP working on a wide range of corporate and commercial projects internationally. He was managing partner of the London office between 2007 and 2011 and worked in the Madrid office between 1994 and 2000. Upon retirement from Freshfields he became General Counsel of England 2015, the organising committee for the Rugby World Cup. Tim joined the Board in November 2019.

Dr David Pyott is the former Chairman and CEO of Allergan Inc. During his tenure, Allergan was transformed from a small eye care business with about $1 billion in sales to a global company, with sales over $7 billion. Dr Pyott is a member of the Board of several U.S. pharmaceutical companies and a member of the Supervisory Board of Royal Philips. He is Deputy Chairman of the Board of Governors of London Business School, a Trustee of the California Institute of Technology, President of the newly created Ophthalmology Foundation, successor to the International Council of Ophthalmology Foundation, President of the Advisory Board of the Foundation of the American Academy of Ophthalmology and is also involved on the Boards of many other U.S. and international eyecare charities. Dr Pyott and his wife, Molly, are Members of the Priory of the USA and stalwart supporters of SJEHG. Dr Pyott joined the Board in October 2020.

Joachim von Einem was a lawyer and notary public in his own office for more than 40 years in Bremen, Germany. He joined the Johanniterorden in 1976 taking over several functions within the order. From 2008 to 2022 he was the Governing Commander of the Hannover Commandery, covering most parts of Northern Germany. Joachim joined the Board in June 2023.

Dr Ahmad Ma’ali joined SJEHG in 1990 as a student nurse, cementing his education at Al Quds University, Greenwich University and Moorfields Eye Hospital, as well as being awarded a PhD from De Montfort University – Leicester in 2017. He became Head of our School of Nursing in 2001 and in 2009 became our first Palestinian Nursing Director. He was appointed Joint CEO in October 2017, and has been CEO since June 2019.

Peter Khoury joined SJEHG as Deputy Financial Controller in 2008, and became Financial Controller in 2014. He gained his financial qualifications at North Park University in Chicago where he earned the prestigious ‘Who’s Who Among Students in American Universities’ award for outstanding academic achievement. Peter was an auditor for KPMG, and was Accounts Manager at The Lutheran World Federation / Augusta Victoria Hospital. Peter is also a member of the American Institute of Certified Public Accountants, The Texas Society of Certified Public Accountants, and the Arab Society of Certified Accountants. He was appointed Joint CEO in October 2017 and has been Director of Finance since June 2019.

Director of Development & Grants