SESLHD Board Members

Ms Betty Invanoff is the Board Chair of South Eastern Sydney Local Health District.

Betty's career has spanned 25 years as a corporate lawyer and senior executive with experience across all aspects of corporate and commercial law, corporate governance, mergers and acquisitions, corporate affairs, leadership, and transformation. Betty has served as Chief Legal Officer and Company Secretary in ASX listed companies and international organisations including Crown Resorts, The Star Entertainment Group, Coca-Cola Amatil Ltd and GrainCorp Ltd. Her previous corporate roles were with CSR Ltd, Walter Constructions and Sinclair Knight Merz. Betty is an experienced board director and chairperson having served on boards across the corporate and not for profit sectors including Women’s Community Shelters, The Hellenic Initiative, Paradise Beverages, and Allied Mills and is presently the Chair of the UTS (SYD) Law Advisory Board. Betty is a graduate of the UTS (SYD) and completed the Executive Management and Leadership Program at the Saïd Business School, Oxford University.

Ms Elli Baker is an experienced commercial, financial and major projects executive leader with 30 years' experience working across both the private and public sectors in financial markets, infrastructure and the water and energy utilities sectors.

Elli's former appointments include Non-Executive Directorships at Muscular Dystrophy Foundation, Silver Heritage Group, Tasmanian Gas Pipeline and Merredin Energy. Her former roles include Project Director of the $3.3 billion HumeLink for Transgrid, Director of Major Projects at WaterNSW, Chief Financial Officer at WaterNSW, Director at Allco Finance Group and Equities Research/Sales at Goldman Sachs and JP Morgan.

Elli holds a Masters in Finance Degree from London Business School (1998) and was awarded the University Medal in Civil Engineering from The University of Sydney (1993).

Liam is a Saltwater Freshwater man from the Dunghutti area of coastal Northern NSW, a purpose-driven Aboriginal leader, founder and Chief Executive Officer of GIRA Advisory. He has a proven record of delivering strategic and targeted outcomes across various sectors, including education, government, private, renewables and health, all within the First Nations community context. His background as an Intensive Care Paramedic and clinical educator with NSW Ambulance, along with his role as Co-Chair of the Health Professional Councils Authority, Cultural Safety Advisory and Working Group, highlights his deep commitment to improving health outcomes and cultural safety for First Nations people in the healthcare environment. Liam serves as a Board Member of the NSW Indigenous Chamber of Commerce, is a graduate of the Australian Graduate School of Management (AGSM) and is an alumnus of the Australian Institute of Company Directors. Additionally, Liam is an Adjunct Fellow of the Translational Health Research Institute, with a passion for, and a dedication to, advancing self-determination, in both health care and economic independence for First Nations people. 

Dr Greg Levenston, JP, served as the Medical Director at Bronte Medical Centre from 1997 to 2019) and has special interests in men’s health and paediatrics.

Dr Levenston is the Deputy Chair of the SESLHD Board and a member of the SESLHD Quality, Safety and Cultural Committee. He has also served on the Board of Variety, the Children's Charity NSW/ACT, having recently completed a term as Chair.

A former Grand Master of Freemasonry NSW/ACT, Dr. Levenston is also a member of the Board of Patrons for the Freemasons Foundation for Men’s Health at Adelaide University.

Additionally, Dr. Levenston previously served as Deputy Mayor of Woollahra Municipal Council.

Helene is an experienced senior executive and non-executive director in the public and NFP sectors. She is a graduate of the Australian Institute of Company Directors (GAICD) with executive management experience in governance and assurance, organisational development and corporate services and human services policy and service delivery.

Helene is a, mindfulness educator trained in Mindfulness Based Stress Reduction (MBSR) and has a MA (Health and Social Wellbeing). She teaches mindfulness in professional settings including the health and education sectors for self-awareness, resilience and compassionate connection and leadership and in community settings assisting participants with stress, pain and chronic disease management.

Emeritus Professor Allan Spigelman trained as a surgeon in Sydney before leaving for London to subspecialise in cancer care and research. On his return to Australia, to undertake the role of Chair of Surgical Science at the University of Newcastle, followed by UNSW, he established and led the first clinical governance unit in Australia. This unit developed several patient safety and clinical quality policies since rolled out across NSW and Australia.

He served on the NSW Medical Board for over 20 years. He established and lead the Hunter Family Cancer Service and also the St. Vincent’s Cancer Genetics Unit.  The latter services every local health district in rural and regional NSW via a hub and spoke model.  He is the author of nearly 200 peer reviewed papers, as well as several books and multiple chapters. He brings to the Board his wide and ongoing clinical and research experience.  He has a particular focus on patient safety and clinical quality and a desire to hold management accountable in the delivery of safe, innovative, personalised, efficient and effective care. 

Dr Jan Dudley is a VMO Obstetrician and Gynaecologist who has worked across both public and private hospital sectors on the Randwick campus since 1997 - at The Royal Hospital for Women, Prince of Wales Private Hospital and Sydney Children's Hospital (in paediatric and adolescent gynaecology). She has significant governance experience at a local hospital level.

Dr Dudley is also a Director of Avant (since 2014). Dr Dudley was previously on the Medical Experts committee at Avant for 13 years, as well as working with the NSW Medical Board.

Dr Dudley is a graduate of the Australian Institute of Company Directors.

Mr Diakos has considerable senior executive experience and knowledge in financial and general management, including the operational and strategic aspects of financial management, corporate services and administration. This was gained within commercial and non-commercial operating environments, including the services, finance, health, justice, law and order, emergency services, transport and infrastructure, regulatory, environment and conservation and superannuation sectors. Mr Diakos held senior executive roles, including that of CFO and head of corporate, in large, complex and high-profile NSW and Commonwealth government organisations and was awarded the Public Service Medal in recognition of his achievements. He is a Fellow of the Australian Society of Certified Practicing Accountants.

Mr Diakos brings demonstrated leadership, management and governance skills and capabilities, along with a breadth of expertise and knowledge to add significant value to both the Board and South Eastern Sydney Local Health District.

Dr Estell is a Consultant Physician in Rehabilitation Medicine, with appointments at St George Hospital and Calvary Hospital. Dr Estell is the Co-Director of Aged and Integrated Care Division at St George Hospital, Head of Aged Care and Rehabilitation Medicine at Calvary Hospital and Private Rehabilitation Medicine with appointments to local private hospitals.

Dr Estell is a Rehabilitation Physician with an extensive experience in Spasticity management, Stroke Rehabilitation, Trauma Rehabilitation and able-bodied and disabled sports medicine.

Dr Estell holds multiple appointments with NSW and Australian Rehabilitation Networks including Australian Rehabilitation Outcomes Centre (AROC) and Agency for Clinical Innovation (ACI). He has recently been Chair of the Medical Staff Executive Council of SESLHD.

Dr Estell has been a Board member of Independent Private Hospitals Australia and a number of other Companies.

Anna Guillan is a respected and highly experienced Non-Executive Director. Appointed as a Fellow of the Australian Institute of Company Directors, her extensive service includes Chair of Regional Development Australia (Sydney), Board Member Destination NSW, Board Member Hammons Holdings, Trustee Royal Botanic Gardens and Domain Trust, CEDA Trustee. Her previous roles included Chair Western Sydney Parklands Trust; Deputy Chair Tourism Australia; Board Member CareFlight; Board Member Tourism & Events Queensland; Deputy Chair Australian Tourism Export Council.

Anna has a strong strategic business background with demonstrated success across diverse sectors. Anna is also Co-Founder of cancer charity, the NELUNE Foundation, and is a recipient of the Order of Australia, acknowledging her service to the Australian tourism industry and to the community through support for social welfare and health organisations.