Group Chair
David Roberts
David is an experienced healthcare leader who has worked for more than 35 years across public, private and government sectors in the UK and internationally. His previous roles include Chief Executive of University Hospitals Coventry and Warwickshire NHS Trust, Director General of Health and Human Services in Tasmania and Board member of the King Faisal Specialist Hospital & Research Centre in Saudi Arabia. He also served as Global Health Industry Leader at EY. David has held several academic and advisory appointments across the UK, Australia and the Middle East and brings extensive expertise in governance, transformation, leadership development and system leadership. Appointed October 2025.
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Group Chief Executive
Professor Lesley Dwyer
Lesley has more than 30 years' experience in healthcare leadership across the NHS and Australia. Before joining the Group, she served as Chief Executive of Norfolk and Norwich University Hospitals NHS Foundation Trust and previously led the Central Adelaide Local Health Network in South Australia, one of Australia's largest health services. She was also Chief Executive of Medway NHS Foundation Trust, where she helped lead the organisation out of Special Measures and secure a "Good" rating from the Care Quality Commission. Lesley brings extensive experience in operational leadership, quality improvement, workforce development and delivering large-scale change across healthcare systems. Appointed May 2025.
She was Chief Executive of Medway NHS Foundation Trust in Kent between 2015 and 2018, where she helped lift the organisation out of quality Special Measures and into a well-led “Good” rating from the Care Quality Commission.
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Non-executive Directors
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Sally Collier, Senior Independent Director
Sally has held a number of senior leadership positions within the Civil Service, most recently serving as Head of Place for the Cabinet Office in the East of England. She was the first Chief Executive of the Crown Commercial Service and later served as Chief Regulator and Chief Executive of Ofqual. Sally brings extensive experience in governance, regulation, organisational leadership and public sector reform. Appointed July 2025.
She was the first Chief Executive of the Crown Commercial Service from 2014-16, and worked as the Chief Regulator and Chief Executive of Ofqual, a non-ministerial department reporting to Parliament, from 2016-20.
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Dr Tanvir Alam
Tanvir is a GP Partner at East Lynne Medical Centre in Essex and previously served as Deputy Medical Director at the former Suffolk and North East Essex Integrated Care Board. He has held a range of clinical leadership roles, including Clinical Director of the Clacton Primary Care Network and Lead GP for Acute Mental Health Services. He brings expertise in primary care, clinical leadership and tackling health inequalities. Appointed July 2025.
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Professor Philip Baker
Philip is Pro-Vice-Chancellor for the Faculty of Medicine and Health Sciences at the University of East Anglia. He joined UEA from the University of Leicester, where he served as Pro-Vice-Chancellor for Research and Enterprise. His career has focused on medical education, research and healthcare innovation, and he brings significant experience in academic leadership and partnership working. Appointed July 2025.
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Jack Bowman
A technology entrepreneur and senior board-level leader with expertise in digital transformation, data infrastructure and healthcare innovation, Jack has founded and led organisations operating across the UK and internationally and has extensive experience in digital governance, risk management and organisational growth. He brings expertise in data, technology and strategic transformation. Appointed July 2025.
He has built and led multiple organisations across the UK and internationally, including platforms focused on data accuracy, consent, interoperability and safer digital pathways in both clinical and community settings.
As a founder and chief executive, he works at system level, designing data and connectivity infrastructure that improves intake, triage and access while supporting resilient, secure mission-critical services. Alongside his executive roles, he chairs and advises a portfolio of ventures through Oxbridge Investments and Capulet Group and other non-executive and advisory positions, bringing disciplined governance, risk and audit oversight to complex digital programmes.
His style is calm, collegiate and analytically rigorous, with a strong emphasis on public value, inclusion and measurable improvement in outcomes.
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Jo Churchill
Jo served as Member of Parliament for Bury St Edmunds between 2015 and 2024 and held several ministerial positions across health, environment and employment. As Parliamentary Under Secretary of State for Prevention, Public Health and Primary Care, she helped lead the Government's response to the Covid-19 pandemic. She brings extensive experience in public policy, health improvement and stakeholder engagement. Appointed July 2025.
She became the first female MP for Bury St Edmunds in 2015 and was re-elected in 2017 and 2019. She sat on the Women and Equalities and Environmental Audit Select Committees as well as several All Party Parliamentary Groups (APPGs) and founded the personalised medicine APPG.
In 2019, Jo was appointed Parliamentary Under Secretary of State for Prevention, Public Health and Primary Care, helping to lead the Government’s response to the COVID pandemic. Health is a lifelong passion, especially using data and science to help the system function more effectively, deliver results and free up time to care.
In 2021, Jo was appointed as Parliamentary Under Secretary of State with responsibility for Waste and Air Quality as well as Agri-Innovation. In 2022, she became Vice-Chamberlain of the Household and a Government Whip. In November 2023, she was appointed as Minister for Employment. She did not stand for re-election in 2024.
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Nikki Gray
Nikki qualified as a chartered accountant with Ernst & Young before building a successful career across the financial services and energy sectors. She has held senior executive roles with organisations including Aviva and Zurich and has led major transformation programmes. Nikki is currently Chief Operating Officer of Pikl Insurance Services and brings expertise in finance, operations, governance and organisational change. Appointed July 2025.
Nikki is currently the Chief Operating Officer at Pikl Insurance Services Ltd, a local Insurtech. She has been a Governor at City College Norwich since 2018, where she currently sits on the Business Committee with previous roles on both the Curriculum & Standards Committee and the Audit Committee.
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Stephen Javes
Stephen was Chief Executive of Orwell Housing Group for 27 years, leading the organisation through significant growth and development. Throughout his career he has focused on housing, care and community services and has served on a number of public and private sector boards. He is currently Chair of the Lowestoft Place Board and brings considerable experience in leadership, governance and partnership working. Appointed July 2025.
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Andrew McKechnie
Andrew has more than 30 years' experience in senior leadership roles within national and international banking organisations, with expertise in digital banking, ecommerce and organisational transformation. Since leaving executive leadership, he has continued to support organisations through non-executive roles and brings extensive experience in strategy, governance and business change. Appointed June 2025.
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Susan Putters
Susan has held senior executive roles across the science and technology sector, specialising in human resources, IT strategy, digital transformation and mergers and acquisitions. She continues to provide consultancy support and has extensive experience as both a trustee and non-executive director, including within the care sector. Susan brings valuable expertise in workforce, organisational development and strategic change. Appointed June 2025.
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William Van't Hoff
William served a consultant paediatric nephrologist at Great Ormond Street Hospital and former Chief Executive of the National Institute for Health and Care Research Clinical Research Network (NIHR CRN). He has held several regional and national clinical leadership roles and played a significant role in supporting research delivery during the Covid-19 pandemic. He brings extensive expertise in clinical leadership, innovation and healthcare research. Appointed July 2025.
In early 2020, he was appointed Chief Executive of the National Institute for Health Research's Clinical Research Network (NIHR CRN), a role he’s now retired from, having led the organisation through Covid-19 and delivering the research response to the pandemic.
Some of his earlier positions include Chair of the Joint Medicines Committee at the Royal College of Paediatrics and Child Health, NIHR National Co-Director of the Medicines for Children Research Network and NIHR Director for NHS Engagement.
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Marcus Bailey, Group Associate Non-Executive Director
A registered nurse and former paramedic with leadership experience across ambulance services, community healthcare and integrated care systems, Marcus is currently Director for Health and Care (Central England) at the British Red Cross and serves as Chair of Governors at City College Norwich. He brings expertise in frontline healthcare, system leadership and workforce development. Appointed July 2025. Non-voting
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Gee Cook, Group Associate Non-Executive Director
Gee has held senior leadership roles across the education sector, including as Executive Principal and Chief Executive of academy trusts. She is currently Chief Executive of New Routes Integration, a charity supporting some of Norfolk and Waveney's most marginalised communities. Gee also holds non-executive positions with the Young Foundation and Premier Foundation and brings expertise in leadership, education and community engagement. Appointed July 2025. Non-voting.
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Group Executive Directors
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Jo Segasby, Chief Delivery Officer and Deputy Group Chief Executive
Jo is responsible for supporting the development of the Group's operating model, overseeing performance and driving clinical transformation across the organisation. Alongside her Group responsibilities, she is currently providing leadership support for The Queen Elizabeth Hospital King’s Lynn and oversees delivery of the new hospital programmes at both The QEH and James Paget University Hospital. Jo brings extensive experience in operational leadership, improvement and organisational change. Appointed May 2025.
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Marcus Thorman, Chief Finance Officer and Deputy Group Chief Executive
Marcus joined the NHS through the national graduate management scheme and has since held Chief Finance Officer roles across district general, specialist, teaching and group-model NHS organisations. Most recently, he worked within the group model at Manchester University NHS Foundation Trust. Marcus brings extensive experience in financial leadership, governance, operational performance and organisational transformation. Appointed May 2025.
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Dr Rob Sherwin, Chief Medical Officer
A consultant obstetrician and gynaecologist with extensive experience in provider, commissioning and system leadership roles in both the UK and New Zealand, Rob previously served as Medical Director for Specialised Commissioning and Health and Justice within NHS England and has held a range of senior clinical leadership positions. These include Director of Women's Health in Auckland and National Lead for Women's Health for the Getting it Right First Time programme. Rob brings expertise in clinical governance, service improvement, specialised services and medical leadership. Appointed December 2025.
He trained in medicine at Pembroke College, Cambridge, and the Charing Cross and Westminster Medical School in London. After initial clinical posts in London, he returned to the East of England to train in Obstetrics and Gynaecology at the Rosie Maternity Hospital, Cambridge, Hinchingbrooke and West Suffolk Hospitals.
Following his PhD and completion of his subspecialty training in Urogynaecology, he was appointed Consultant Obstetrician and Gynaecologist at the Whittington Hospital in North London. During his time there, he held several leadership roles, including Clinical Director for Obstetrics and Gynaecology, Director of Research and Development and Associate Medical Director with responsibility for Appraisal and Revalidation. He also served as a Specialist Advisor to the Care Quality Commission, Secondary Care Representative on Bedfordshire CCG, and National Lead for Women’s Health for the Getting it Right First Time (GIRFT) programme.
Rob subsequently worked in Auckland, New Zealand, as Director of Women’s Health at Auckland District Health Board, where he led a large multi-disciplinary team and oversaw regional and national services including maternal-fetal medicine, gynaecological oncology and community midwifery.
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Rachael Cocker, Group Chief Nurse
Rachael began her career at Norfolk and Norwich University Hospitals as a student nurse in 1991 and later qualified as a registered midwife through the University of East Anglia. During more than 30 years with the organisation, she has held a wide range of nursing leadership roles and gained experience across acute healthcare services. Rachael is committed to delivering high-quality patient care, workforce development and multidisciplinary working. Appointed December 2025.
Rachael has worked at NNUH for over 30 years, commencing with her registered general nurse training in 1991 with Broadland school of nursing and she later undertook training with the University of East Anglia as a registered midwife.
Throughout her career she has held various nursing leadership roles, gaining experience across all areas of healthcare delivery within the organisation. She is committed to upholding high standards of patient care, fostering interdisciplinary collaboration and ensuring the smooth operation of nursing, midwifery and AHP services.
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Dr Shane Gordon, Executive Managing Director, Norfolk and Norwich University Hospitals
Shane previously served as Interim Executive Managing Director at James Paget University Hospital and was Director of Strategy, Research and Innovation at East Suffolk and North Essex NHS Foundation Trust. He has nearly 20 years' experience in NHS leadership. A GP by background, Shane is passionate about improving services, quality and patient experience. He has previously served as Chief Executive of an NHS commissioning organisation and Associate Medical Director for NHS East of England, leading local and large-scale service change. He is also a founding council member of the East of England Clinical Senate. Appointed December 2025.
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Jonathan Gardner, Executive Managing Director, James Paget University Hospital
Jonathan joined the Group from Whittington Health NHS Trust, where he served as Chief Strategy, Digital and Improvement Officer. He has also held senior leadership roles at University College London Hospitals and North Middlesex University Hospital, alongside earlier roles within the Department of Health and management consultancy. Jonathan brings extensive experience in service improvement, partnership working and digital transformation. Appointed January 2026.
Prior to this role, he worked on cancer programmes and strategic development projects at University College London Hospitals NHS Foundation Trust. Jonathan’s previous NHS roles include operational management in specialist services at UCLH, followed by surgery and then the A&E and Medicine divisions at North Middlesex University Hospital NHS Trust. He has a varied background in both private and public sectors, having previously held several roles at the Department of Health as well as working as a management consultant and in business as a conference organiser.
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Non-voting members of the Board
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Ian Walker, Group Director of Governance
Ian has more than 20 years' experience in NHS executive leadership roles covering governance, risk management, communications and legal services. He previously served as Director of Corporate Affairs at both Cambridge University Hospitals NHS Foundation Trust and Barts Health NHS Trust. Ian leads the development of the Group's governance and risk management arrangements.
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Ed Prosser-Snelling, Group Digital Director
Dr Ed Prosser-Snelling is a practising consultant obstetrician and gynaecologist and has led major digital transformation programmes across Norfolk and Waveney. He was instrumental in developing collaborative digital leadership across the system and securing approval for the region's digital strategy and electronic patient record programme. Ed combines clinical expertise with a strong track record in digital innovation, information systems and service improvement. Appointed September 2025.
He trained in the East of England, completing his specialist training in 2018. During this time, he joined the NHS England National Medical Director’s Clinical Fellowship programme at the Royal College of Obstetricians and Gynaecologists, giving him insights into health policy and governance. He also represented the East of England on the RCOG Council.
Ed joined the Norfolk and Norwich University Hospital in 2018 as a consultant and, shortly after, became Chief Clinical Information Officer and executive lead for digital health, joining the Trust Board as a non-voting member in 2022. He’s been instrumental in building the network of clinical and digital leads across Norfolk and Waveney hospitals that was essential in driving collaborative digital transformation. As an alumnus of the NHS Digital Academy, he’s led initiatives to improve IT infrastructure, cybersecurity and clinical systems, securing both board support and national approval for a digital strategy that includes a new Electronic Patient Record system.
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Simon Nearney, Group Chief People Officer
Simon leads the Group's people services directorate, which includes the development and delivery of the group people strategy, leading workforce transformation, organisational development, leadership and staff experience across the Group. He has held several HR Director roles in the public sector and brings extensive experience in people leadership, cultural change, EDI and developing organisations and, importantly, their people to be the best they can be; to provide great services for our patients and their families. Simon will play a key role in supporting and delivering the Group strategy, key priorities and workforce ambitions. Appointed September 2026.
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Ben White, Group Director of Communications
Ben leads communications, engagement and public affairs across the Norfolk and Waveney University Hospitals Group. He is responsible for strengthening engagement with staff, patients, partners and communities while supporting delivery of the Group's strategic objectives and organisational change programmes. He brings significant experience in communications, stakeholder engagement, reputation management and strategic leadership across complex organisations in both the public and private sector. Appointed May 2026
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