Our Leadership
Our Board of Directors
Dr. Lynne Coleman MNZM
Board chair
Lynne has been a GP on the North Shore for 25 years, previously working as a GP Obstetrician for 15 years. She now focuses on urgent care at Apollo Medical, where she also holds a Clinical Leadership role.
She has a strong interest in sports and injury medicine, travelling with elite teams including New Zealand’s Olympic and Commonwealth Games squads. In 2015, she was made a Member of the New Zealand Order of Merit for services to sport and health. A qualified director, she has been part of the Institute of Directors for 10 years.
Lynne has extensive board experience, including the Waitemata DHB and Wilson Home Trust. She currently serves on the Sports Tribunal of New Zealand and is a Director of Shore Care and Apollo Medical. Passionate about primary care, she is dedicated to promoting healthy communities.
Dr. Judy Blakey MNZM
Director
Judy has a background in education, research, and community health. She contributed health consumer perspectives to Te Tāhū Hauora Health Quality & Safety Commission’s 2016 framework and served on Precision Driven Health’s Independent Advisory Group (2016–23).
A life member of Mairangi Arts Centre, she chaired its Board of Trustees (2016–20). As a member of Auckland Council’s Seniors Advisory Panel (2014–19), she led work that secured Council support for developing an Age-friendly Action Plan, with Auckland joining the WHO’s global Age-friendly Cities network in 2022.
Appointed a Member of the New Zealand Order of Merit in 2018 for services to seniors, Judy was also made a life member of the NZ Association of Gerontology (NZAG), where she serves on the executive and 2023 Conference Committee. She contributes age-friendly perspectives to Counties Manukau’s Brain Health in Older People Advisory Group and is a member of Health Informatics NZ and the Digital Health Association
William Davis
Director
E nga mana, e nga reo, e nga rau rangatira ma tena koutou katoa.
Ko nga maunga whakahi o Tamaki oku maunga hei purea ai, Mahuhu ki te Rangi raua ko Tainui oku waka, Waikato te awa – “He piko he Taniwha”, te Manukanuka o Hoturoa ratou ko, te Wai o te Mata, te Kaipara oku moana – “Hei huru hapi”. Puatahi ki Ngati Hine ratou ko, Reweti, Orakei, Werewere, Nukuhou oku Marae. Ko Ngati Whatua, Waikato, Ngati Tuwharetoa oku Iwi.
Ko William Tamakehu Davis tenei.
My work experience includes director, board member and other roles for community and business organisations, including Whai Maia Ngati Whatua Orakei, Iwi representative for Auckland Council Te Kete Rukuruku and Place Naming project, Board Chair Freemans Bay School.
My academic background includes Indigenous and Health Studies. I graduated from the University of Auckland with a postgraduate diploma in Maori Business Development
Dr. Siobhan Trevallyan
Director
Dr. Siobhan is a highly experienced general practitioner who has served as Clinical Director and GP since 2005. She completed her medical training at the University of Auckland, earning her MBChB and PhD in Medicine (1991–1999). With over 20 years of dedicated practice in primary care, she has built a career centered on patient-focused, holistic healthcare.
Her medical interests are broad and include women’s health, contraception, transgender medicine, diabetes, gout, and heart disease. She is passionate about working in partnership with patients to create health solutions tailored to their individual needs and values the opportunity to care for a diverse community.
Beyond her clinical work, Dr. Siobhan enjoys spending time with her family, staying active, reading, and crochet
Dr. Vivien Wei Verheijen
Director
Vivien is a Chartered Member of the Institute of Directors with a diverse background in governance and advisory roles across the public, private, and not-for-profit sectors. She is a member of the Consumer Advisor Committee, PHARMC, and a Lay Member of the National Standards Committee, New Zealand Law Society.
Vivien holds a Doctor of Philosophy (PhD) in Public Policy from Auckland University of Technology. She is dedicated to advancing diversity and inclusion through robust governance practices and strategic advisory.
Committed to upholding fiduciary responsibilities and legal frameworks, Vivien brings a comprehensive understanding of government processes and focuses on promoting consumer perspectives and inclusion at the board table
Andrew Clews
Director
Andrew Clews is Callaghan Innovation’s Head of Health Technology and leads the sector team working to support NZ based HealthTech businesses in commercialising their R&D.
Andrew represents Callaghan Innovation as part of the Consortium for Medical Device Technologies (CMDT) and sits on the Advisory Board of Te Titoki Mataora – The Medtech Translator. As New Zealand’s national innovation agency, Callaghan Innovation works with ambitious businesses of all sizes, delivering a range of innovation and research and development (R&D) services to suit each stage of their growth.
Callaghan Innovation works with more than 200 Health Technology businesses via the HealthTech Activator (HTA), an initiative to deliver advice, funding support, capability building programmes and connections across the HealthTech sector.
Andrew joined Callaghan Innovation in 2014 following more than 16 years in the US working in complex sectors as diverse as electromechanical devices and life sciences.
He has a background in business internationalisation and the commercialisation of new technology, new products and new brands in complex categories. Andrew has held senior management and leadership team roles in a wide variety of organisations from major corporates to startups and IPO-focused growth companies
Dr Jacqueline Schmidt-Busby
Chief Executive Officer
Jacqueline has significant experience and expertise in systems analysis and design, strategic development, change management, stakeholder engagement and collaboration, and pursuing health equity. She also brings transparency and context to the forefront at Comprehensive Care – enabling the realistic development of plans, services, and opportunities.
Jacqueline is Samoan and holds a PhD in Medicine as well as post-graduate degrees in Business Administration and Health Sciences. As a results driven leader, Jacqueline is passionate about shaping the future of the next generations to be better and more adept than the current.
With a diverse career, she has worked across multiple industries in both the public and private sectors; for the last decade and more largely in health and social settings, providing leadership, consultancy and advise to national and regional agencies.
Our People
Our people are at the heart of Comprehensive Care. Led by experienced experts and practitioners, we deliver holistic, high-quality healthcare rooted in clinical and community knowledge.
Senior Leadership Team
Maria brings more than 30 years of experience in primary health care to her role at Comprehensive Care. She has had a diverse career working across non-government organisations, District Health Boards, and primary health care organisations, as well as being a business owner of a primary health care practice.
Maria is a Nurse Practitioner with skills in leadership and partnering for outcomes. She is committed to improving patient health outcomes, through understanding patient experiences, access, and equity issues in health care. Maria supports the development of the workforce of the future with a special interest in nursing.
Rodney is a highly experienced and strategic information technology leader with over 40 years of driving technology innovation and digital transformation. As the Chief Information Officer (CIO) at Comprehensive Care, he is responsible for shaping the organization’s IT strategy, overseeing day-to-day technological operations, and integrating cutting-edge solutions to enhance business growth and operational efficiency.
With a deep background in healthcare, Rodney has consistently leveraged technology to solve complex challenges, streamline processes, and create measurable value for stakeholders. His ability to align long-term IT vision with practical, day-to-day operational needs has made him a key driver of successful digital transformations. Rodney has led the implementation of state-of-the-art systems that have improved productivity, security, and scalability within the organisation.
Beyond his professional role, Rodney is passionate about sport and theatre and is dedicated to empowering organisations to harness technology for positive societal impact.
Shauna oversees the operating direction for Comprehensive Care as the Chief Operating Officer (COO), converting strategy into executable roadmaps and leading large-scale change across people, processes and innovation. She brings more than 15 years of international experience in Human Resources and Operations across New Zealand, Ireland and the U.K., with strengths in change management, stakeholder engagement and strategy development.
In the COO role, she directs operational performance, workforce and capability, and end-to-end service delivery. She focuses on disciplined prioritisation, outcomes-based metrics and close partnership with clinical, corporate and strategic community stakeholders to deliver sustainable impact.
Ajit is the Director of the inaugural population health programme at Comprehensive Care. Ajit is an experienced senior manager with expertise in strategy development, programme implementation, organisational performance, evaluation, and assurance.
Previously, Ajit was an independent projects consultant working across a range of entities in both the public and private sectors. He has advised DHBs’ planning and funding on the commissioning of services in primary care and hospital specialist services and worked with NGOs on strategy planning and performance-related projects. Most recently, he worked for the national office of HNZ on performance frameworks and with their northern region commissioner on regional team integration and for a Kaupapa Māori provider of social and healthcare services. Ajit was a former Director of audit at HealthShare Limited, who re-developed the audit and assurance programme for the five mid-north island DHBs and held a Crown warrant as a Designated Auditing Agency to independently undertake audits for the certification of NGO and hospital entities.
Ajit holds a Doctorate in Public Policy (Economics, Efficiency Management) and is a member of the Government Economics Network. Ajit serves on the New Zealand Hohenheim (Stuttgart) Healthcare Management Research Board.
Derek Chang has extensive experience in mental health, addictions, youth health, and service development. Originally trained as a doctor in China, Derek has worked in New Zealand Mental Health & Addictions sector for 14 years across clinical, operational, and strategic roles.
As Director of Asian Health, Derek focuses on expanding healthcare services for New Zealand growing Asian community, supporting practices, and improving cultural responsiveness. Previously, he held leadership roles in Mental Health & Addictions services at PHO and Funding & Planning at Health New Zealand. He has also contributed as member of the Health and Disability Ethics Committee under Ministry of Health New Zealand.
Derek holds postgraduate qualifications in Public Health, Mental Health & Addictions, and Child & Adolescent Mental Health. A DAPAANZ-registered Addiction Practitioner, he is also preparing to return to clinical practice as a doctor in New Zealand.
Sisila Jayasiri has an extensive and diverse career in finance, with over 20 years of experience in high-level business process control, financial planning, analysis, forecasting, budgeting, and management. His career spans multiple industries, including the health sector, tourism, and media, across New Zealand, Fiji, and Sri Lanka.
As a Certified Public Accountant (CPA) and Chartered Accountant of Sri Lanka (CA Sri Lanka), Sisila also holds a Bachelor of Business Administration degree. He plays a key role in developing and executing financial strategies that align with and support the objectives of primary healthcare organisations. His focus is on driving sustainable financial growth while ensuring the efficient management of resources to enhance the delivery of primary healthcare services.
Elizabeth has over 13 years of experience in both primary and secondary care. She has built a strong foundation in leadership, relationship management, and performance improvement. With a background in Public Health, her career has focused on connecting with a diverse range of stakeholders – from general practice staff to business owners – and driving sustainable growth in healthcare settings.
Elizabeth is passionate about developing and maintaining meaningful relationships at both operational and strategic levels. Her focus is on business development, contract management, and public health, and she thrives in environments where she can ensure excellent support to our network, always with a focus on delivering positive outcomes for our patients.