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HomeAbout usMeet our leadership

Our Leadership

MSI Australia advances our mission, ‘children by choice,’ through our network of clinics – the largest provider of safe abortion and contraceptive services in the country.

Through our clinics and not-for-profit pharmaceutical company, MS Health, we aim to ensure Australian women and men can meaningfully exercise their reproductive rights by providing a full range of high-quality reproductive products and services.

Our executive team features passionate and accomplished professionals who bring expertise from medical, pharmaceutical, nursing, financial, legal, operational and technical fields.

Executive team

Greg Johnson

Greg Johnson

Managing Director

Greg is an experienced chief executive and leader in healthcare. His career has spanned the public, private and for purpose sectors and included hospital pharmacy, executive management of hospitals and medical services, and for purpose leadership.

From 2012-2021, Greg was Chief Executive of Diabetes Australia and led transformational change from a federated structure to a unified national operation – with consumers, clinicians and commercial operations as the cornerstones.  This included responsibility for the Australian Government funded National Diabetes Services Scheme providing services to over 1.4 million Australians, managing expenditures over $250m per year and over 400 staff. Diabetes Australia includes significant consumer (over 90,000) and health professional (over 3,500) membership and engagement both directly and through affiliated organisations – the Australian Diabetes Society and Australian Diabetes Educators Association.

He has held many honorary and advisory roles in healthcare including Expert Advisory for the Australian National Diabetes Strategy; Diabetes Expert Advisory Group for the Australian Institute of Health and Welfare; Chair/member of the Australian Chronic Disease Prevention Alliance; Surveyor with the Australian Council on Health Care Standards; and Professorial appointments at Deakin University and Monash University.

Clare O’Neill

Clare O’Neill

Executive Director of People and Culture

Clare joined MSI Reproductive Choices in 2015 as Global Head of HR Operations based in the London Support Office. Clare transferred to MSI Australia in 2019 to assist with our Change Management program. Following the completion of this program, she accepted a role as Executive Director of People and Culture. Her responsibilities include building our People and Culture infrastructure and developing a comprehensive education, development, and training function while driving the People and Culture strategy and overseeing HR best practices.

Dr Philip Goldstone

Dr Philip Goldstone

Executive Director of Medical Services, Medical Director

Philip joined MSI Australia in 2005, where he first worked as a clinician in our Sydney clinics before being appointed to the role of Medical Director in 2010. Philip is one of Australia’s leading practitioners in abortion and contraception care. He played a crucial role in bringing medical abortion to Australia and published widely on the topic. Philip is responsible for ensuring we deliver safe and high-quality care that meets best practice standards and chairs our National Medical Advisory Committee.

Dr Catriona Melville

Dr Catriona Melville

Executive Director of Clinical Excellence

Dr Catriona Melville is a specialist in sexual and reproductive health and has been providing client-centred reproductive health services for over 25 years. Catriona has spent much of her life working in the NHS in Scotland, pioneering integrated sexual and reproductive healthcare before relocating to Queensland in 2016. Catriona joined MSI in 2018 as a Senior Medical Officer and was appointed as Director of Clinical Excellence in 2023. Catriona is Queensland-based, providing both in clinic and telehealth services. Her role also includes clinical research and education. She has participated in writing State and National SRH guidance and has been published widely; this includes authoring Sexual & Reproductive Health at a Glance (Wiley-Blackwell).

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Media enquiries: 0428 396 391

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