Our executive team

The headspace executive team
Jason Trethowan, Chief Executive Officer
Jason Trethowan
Chief Executive Officer

Jason Trethowan commenced as Chief Executive Officer at headspace in February 2017.

Jason has spent the bulk of his career in the health sector where he has been driven by a passion to improve health services and access for Australians. Before beginning at headspace he spent 18 months as CEO of the Western Victoria Primary Health Network where he implemented a new organisational structure and led the transition of three Medicare Locals into a single PHN.

He was also CEO at Barwon Medicare Local in Geelong and CEO of the General Practitioner’s Association of Geelong. Earlier in his career Jason held managerial roles within Ballarat and Geelong Health Services.

Jason is involved in many national health system networks and is currently a company director with Barwon Health and Professionals with Alzheimer’s (PALZ).

Jason holds an MBA from Deakin University and has completed graduate degrees in Health Informatics and Health Management at Monash University and La Trobe University.

Jason lives in Geelong with his wife and three young children and is an active member of the local community.

Julia Smith, Executive Director headspace Services
Julia Smith
Chief Operating Officer

Julia is responsible for the leadership and management of services delivered directly by headspace National Youth Mental Health Foundation Ltd. nationally, including: headspace digital mental health programs that include eheadspace online and telephone counselling service; headspace schools programs; headspace Work and Study and headspace career mentoring services; and the headspace centre network support services, including the headspace Model Integrity Framework and trademark licensing.

Julia has over 27 years’ experience in the Australian health sector, predominately in the private health sector. With a background in business, Julia has significant commercial experience in leading complex assignments including: major health mergers and acquisitions; national health funding portfolios for private hospital groups; organisational wide strategic planning; communications and stakeholder management. 

Julia has worked at headspace since 2010, and has seen the organisation expand from 30 headspace centres to the current network of over 120 funded headspace services. She is a passionate advocate for establishing sustainable services and improving access to high quality health care for all Australians. 

Simone Williams, Executive Director Strategic Communications and Marketing
Simone Williams
Executive Director Strategic Communications and Marketing

Simone Williams is the Executive Director of Strategic Communications and Marketing for headspace, the National Youth Mental Health Foundation. With over ten years experience as a marketing and communication executive, she has worked in organisations that span the public, private and not-for-profit sectors.

Prior to headspace, she worked at Medibank Private driving an industry change agenda to engage health providers and keep healthcare affordable. In the public sector, she led the marketing and communications approach that enabled Health Workforce Australia to deliver contentious, large-scale workforce reforms across health and higher education. She also led the positioning and communications that drove the first overhaul of the WorkCover Scheme in South Australia.

Simone is a Board Director for the Victorian Deaf Society and is actively involved in the 60th Anniversary Communications Council for the Duke of Edinburgh Awards.

She holds a Masters in Communication Management and a Bachelor of Arts in Australian Studies.

Vikki Ryall, Executive Director Clinical Practice
Vikki Ryall
Executive Director Clinical Practice

Vikki Ryall joined headspace National Youth Mental Health Foundation as the Clinical Manager in 2009.

She is trained in a range of different therapies and has continued clinical work with young people with a variety of mental health problems throughout various roles with the organisation.

Vikki has extensive experience in management within youth mental health organisations and has worked in youth mental health for most of her 20 year career.

She has extensive clinical experience with young people who are difficult to engage, high risk, and present with complex needs.

Vikki managed the set up and development of eheadspace, the online and telephone mental health service for young people.

In her current role, Vikki oversees clinical programs for headspace at a national level. 

Debbie Mann, Executive Director People and Culture
Debbie Mann
Executive Director People and Culture

Debbie Mann is the Executive Director of People and Culture at headspace, responsible for Human Resources, Organisational Development and Quality and Risk.  She partners with leaders to identify solutions to service and workforce challenges, to embrace and adapt to change and to proactively seize opportunities to strengthen the quality services for young people. 

Debbie brings a people and commercial lens through her 18 years of experience across the broader health sector including medical publishing, pharmacy and mental health working for both profit and not-for-profit organisations. 

Starting with headspace in August 2008, she has played a key role in the establishment and growth of the headspace Services including eheadspace, headspace in Schools and Digital Work and Study.

Debbie is committed to the values of ‘The headspace Way’ and creating ways for employees to engage in a positive workplace culture setting headspace on the path of being a truly great place to work.   

Holding a Master of Management, Debbie is passionate about building organisational capability through a focus on developing leaders to meet current and future needs.

Anna Hall, Executive Director Digital and Technology Services
Anna Hall
Executive Director Digital and Technology Services

Anna Hall is the Executive Director of Digital and Technology Services at headspace, ensuring that headspace stays at the forefront of delivering digitally enabled youth mental health services. The role is central to providing strategic leadership for the organisation’s digital and technology services which positions headspace as a leading system innovator aligned with the future direction of the organisation.

The Digital and Technology Services domain covers day to day operations, data and reporting services as well as technology and digital innovation and service enablement.

Commercially astute IT Executive with over 20 years of expertise leading organisations through significant technology change. Highly accomplished in corporate governance, strategy and innovation, including designing and deploying new products/technologies into large scale organisations.

Anna joined headspace in April 2018 after spending 4 years as a Principal Consultant pioneering the strategic direction, as related to current and future state business / service delivery requirements for high-profile clients within complex organisations.  This included enterprise architecture and business strategy consulting to Victorian and NSW Government as well as the health, finance and telecommunications sector. Prior to that Anna led large teams of up to 200+ highly specialised Information technology professionals in several General Manager Positions within Telstra.

A people-orientated leader and mentor with a keen interest in empowering employees to reach their full potential and become future industry leaders. Anna has a passion for rural Victoria, and runs a successful farm in Gippsland.

Sam Rosevear
Executive Director, Strategy, Impact and Policy

Sam’s 25-year career spans senior roles in Federal and State Government, higher education and the not-for-profit sector.

Sam joined headspace from Beyond Blue, where he set up the Strategy and Policy Group, developed the organisational strategy, and produced a national mental health policy reform agenda.

Some of Sam’s proudest professional achievements come from his time in the education sector, where he worked closely with government to help to secure ongoing funding for Teach For Australia, an organisation that recruits Australia’s top talent to be teachers and lifelong leaders in schools in low income communities.  Prior to this, Sam’s work as Chief of Staff to University of Melbourne Vice-Chancellor Glyn Davis saw him engage with government to advocate for policies to foster higher education and support University of Melbourne initiatives, and help develop university strategy and projects.

Sam also worked in Federal and State Government for 17 years. In Federal Treasury and Finance, he worked across almost every portfolio in government to develop major policy packages across 10 successive Federal Budgets, and advised Cabinet to support their policy deliberations. Later as Deputy Secretary, Policy, in the Victorian Government innovation and industry portfolio, Sam developed a range of policies and initiatives to support economic growth in Victoria.

Sam lives with his wife and young son – The Hurricane – in Brunswick East. He is passionate about continuing to advocate for increased access to mental health support for young people.