Organisational Structure

View Tresillian's Organisational Chart HERE

Learn more about Tresillian’s organisational structure and our Board Members and Executive Team.

Board Members

Tresillian’s voluntary Board provide advice on strategy and governance. Members include:


Dr Nick Kowalenko


Elected President 
November 2013 - Current
Director: Governance, Audit & Risk Committee 2014 - Current

Dr Nick Kowalenko is an infant, child and adolescent psychiatrist with clinical, research, education and is committed to promoting the emotional health and well- being of infants, young children and their parents. He’s advised governments, consumer organisations and health service leaders about the most effective strategies to support mothers and fathers parenting under stress. He’s the Deputy Chair of Emerging Minds, an international Faculty member of Zero to Three and delivers workshops and training in Asia/Pacific region.

Vice President

Natalie Boyd

BA (Mass Comm)

Elected Vice-President November 2015 - Current
Chair: Marketing, Advocacy & Fundraising Committee 2018 - Current
Chair: Strategy & Performance Committee 2014-2018
Director: Marketing, Advocacy & Fundraising Committee 2006-2018

Natalie Boyd is the Executive Director, Practice & Innovation at KJA, a stakeholder communications and engagement consultancy. With more than 20 years’ experience in communications and engagement, Natalie is a respected specialist with expertise spanning across a range of sectors. Natalie is passionate about building resilience in individuals, families and communities, something she considers Tresillian makes a significant contribution to for thousands of Australian families every day through its range of services. As well as contributing to the Tresillian Board, Natalie has chaired the Strategy & Performance Committee and was an active member of the Centenary Ball Committee. As current Chair of the Marketing, Advocacy & Fundraising Committee, Natalie’s expertise in communication and engagement continues to support the growing footprint of Tresillian services.


Peter Quinn


Board Director 2008 - Current
Chair: Finance, Audit & Performance Committee 2008 - Current

Peter Quinn is director and principal of Quinn Financial Planning, and director and co-founder of The Quinn Group, an integrated accounting, legal and financial planning practice. It was his own personal experience that led Peter to Tresillian. Peter is committed to ensuring young families are aware of the help that organisations such as Tresillian, can provide to young families.


Mick O’Driscoll

Project Management 
(P.Grad.Dip) Dip Arch Tech

Board Director 2019 - Current

Mick O’Driscoll is a Senior Development Manager at Calvary HealthCare. He has over 25 years’ experience in development in the construction industry across a range of sectors but has specialised in the Health Sector over the last 10 years in both public and private health. His expertise in this area will assist Tresillian in consolidation and growth.


Pam Longstaff

Pam Longstaff


Board Director 2020 - Current

Pam is a commercial lawyer and executive leader with 20+ years’ experience in roles spanning legal advisory, governance and management, policy and strategy, regulatory affairs and government relations. She is currently Head Corporate Governance and Company Secretary, Australian Broadcasting Corporation.
Pam has served in leadership roles in health focussed not-for-profit organisations, including Juvenile Diabetes Research Foundation and Glycemic Index Foundation. She received the NSW Premier’s North Shore Woman of the Year Award in 2020 recognising her community and fundraising leadership.
Pam is thrilled to contribute to Tresillian’s valuable work supporting new parents.

Troy Trgetaric

Troy Trgetaric

B.App.Sc (HIM), M.P.H, Juris Doctor, GAICD

Board Director 2020 - Current

Troy Trgetaric is currently employed as the General Manager of Calvary Care.  Previous to this appointment, Troy was the General Manager of Wagga Wagga Base Hospital, a major rural referral hospital in in the Murrumbidgee Local Health District.  Troy was also employed as the Director of Corporate Services at Tresillian Family Care Centres for 5 years. Troy is an admitted Solicitor in NSW and has spent several years working at the Attorney General’s Department (NSW) and also NSW Crown Solicitor’s Office. Previously, Troy has worked in large metropolitan hospitals in and around Sydney as an Assistant Director for Community and Allied Health, Business Manager and Health Information Manager. In addition to Troy’s corporate services and information management background, he has well developed skills in budgetary management, change and project management, provision of legal advice, strategic workplace relations and hospital redevelopments.

Executive Team

Chief Executive Officer

Associate Professor Robert Mills


Robert is a Registered Nurse and Midwife with almost 30 years’ experience working in the speciality field of maternal and child health. He holds a Masters of Public Health and has been the CEO at Tresillian since 2013. Robert was the former President of the Australasian Association of Parenting and Child Health Inc, and currently Treasurer of the NSW Health Services Association. He is also a Fellow of the Australian Institute of Company Directors.

Director of Clinical Services


Associate Professor Jenny Smit

B.Sc (Nursing), MPH, MBT, MFMH

Jenny has 15 years experience in the management of hospital, nursing and corporate services with particular expertise in project management, safety and quality accreditation systems. Projects such as the implementation of the National Quality Framework within the early childhood sector have prepared her well for her current position where she is responsible for the planning and development needs of the nursing, medical, social work, psychology and childcare services at Tresillian. 


Executive Director, Finance


Jeffrey Taylor


Jeff is a dedicated Finance Professional with over 25 year’s experience, the last 18 in various senior financial management roles. During this time he has worked in and developed an extensive all round knowledge of all operational aspects of a large not for profit organization. Jeff holds a Masters of Commerce and is also a Fellow of the Institute of Public Accountants.


Executive Director, Governance, Risk and Performance


Marie Dickinson

B.App.Sc (Biomedical), MIHM

Ms. Dickinson has a background in the biomedical sciences with additional qualifications in International Health Service Management and has undertaken roles in corporate management and quality management in the acute, non-acute and mental health services.

Ms. Dickinson is the current chair of the Quality and Safety Committee of the Australasian Association of Parenting and Child Health and has worked with Australia’s largest provider of Child and Family Health services, Tresillian. Ms. Dickinson currently overseas the Governance, Risk and Performance portfolio for Tresillian. In addition, Ms. Dickinson is an assessor against Australia’s National Safety and Quality Health Service standards for the Australian Council on Healthcare Standards.

Ms. Dickinson is currently undertaking a PhD at the University of Technology Sydney where she is also an honorary clinical fellow.


Tresillian Ambassador


Erin Molan

Erin Molan is an Australian television sports presenter living in Sydney. She is currently a Primetime Contributor on Sky News Australia, radio presenter on 2Day FM and columnist on The Daily Telegraph.  Erin is also a devoted Mum to daughter Eliza.

Tresillian Ambassador

Yvonne Weldon

Yvonne is a proud Wiradjuri woman and maintains strong ties to her homelands of Cowra and the Riverina areas in New South Wales.  She is the current elected Chairperson of the Metropolitan Local Aboriginal Land Council, a Board member of Domestic Violence NSW and a Board member of Redfern Jarjum College with a passion for improving the lives of all through health, social justice, Aboriginal advancement, children’s rights, education, child protection, research and evaluation.


Tresillian Ambassador

Sarina Andaloro

Sarina Andaloro is a TV journalist for 7 News and Sunrise. She was nominated for a Kennedy award for breaking political stories during her time in the NSW press gallery with 7 regional. She has also reported for Sky News. Sarina has a journalism degree from Sydney University and is about two thirds of the way through a Juris Doctor at UNSW (she will eventually get around to finishing it). Sarina is also Mum to baby Luca.