The Executive team for both North West London and North Central London ICBs is led by Frances O’Callaghan as Chief Executive Officer:
Katie Fisher is the interim Chief Executive for NHS North Central London and NHS North West London, appointed in January 2026 on a nine‑month secondment from her substantive role as Chief Executive of NHS South West London.
A nurse by background, Katie is a graduate of the NHS General Management Training Scheme. She brings more than two decades of senior leadership experience across the NHS, charitable organisations and the private sector. Her previous roles include Chief Executive at Ashford and St Peter’s Hospitals, Chief Executive at St Andrew’s Healthcare, a specialist mental health charity, and Chief Executive at West Hertfordshire Hospitals NHS Trust.
In North Central and North West London, Katie is leading the next phase of integration and improvement ahead of the creation of the West and North London ICB on 1 April 2026. The new organisation will be England’s largest ICB, strategically commissioning services for 4.5 million residents across 13 boroughs.
Before taking on roles across both ICBs, Steve was Chief Finance Officer and Deputy CEO for North West London ICB.
Under his leadership at North West London ICB, the finance, planning and performance and contracting teams played an important role in reducing health inequalities through linking investment to need, linking business cases to inequality and the core specifications across the system whilst hitting all financial targets across the system.
Jo is a passionate and experienced clinical leader, known for her ability to bring people together to drive meaningful change. With a career spanning frontline general practice, system transformation, and national policy influence, she brings a rare blend of practical insight and strategic vision.
Throughout her career, Josephine has championed inclusive leadership, collaborative working, and a relentless focus on improving outcomes for the communities we serve. She’s led major programmes tackling health inequalities, digital transformation, integrated care pathways, work on air quality and NHS Net Zero, always with a commitment to co-production and partnership. Her leadership style is grounded in compassion, integrity, and a deep belief in the power of people—whether that’s patients, colleagues, or system partners.
Jo is especially proud of her work building strong borough-level integration units, supporting general practice, and mentoring future leaders. She’s driven by a vision of a workplace where people feel valued, connected, and inspired to make a difference.
As we embark on this exciting new chapter for our ICBs, Jo is focused on creating a shared culture that reflects our collective ambition: to deliver equitable, high-quality care, support our workforce to thrive, and ensure our communities feel the impact of our work in their everyday lives. She’s here to listen, to lead, and to work with all of us to shape a healthier future—together.
Jennifer has more than thirty years of experience working in the NHS as a registered nurse, specialising in cardio thoracic nursing and senior nursing leadership roles across a number of acute hospitals in London. In addition, she has undertaken roles as a General Manager and Assistant Director of Operations.
Jennifer is passionate about promoting clinical evidence-based practices, patient safety initiatives and clinical governance and holds an MSc in Nursing and MSc in Integrated Governance. Jennifer has worked previously in a CCG as the Director of Quality and in the last two-years as the Chief Nurse at North West London ICB, bringing a wealth of knowledge in quality, patient safety and patient experience.
Richard’s career in the NHS began as an NHS management trainee, before working in a number of NHS posts in hospitals and commissioning organisations both in Yorkshire and across London.
Richard’s background includes leading complex and large-scale transformation and digital initiatives across organisations. Previous roles have included the development of integrated care systems in north London, operational delivery of the pandemic response, and data driven digital redesign across primary, acute, and community care.
Richard chairs the One London Health Data board that is overseeing the development of the London Secure Data Environment, this will bring together a linked longitudinal health and care record for over 10 million London residents.
He is passionate about supporting teams to work differently in order to tackle health inequalities as well as working closely with residents to deliver tangible improvements to care.
Sarah has been a senior leader in the west and north London area for ten years. For the last three years Sarah has been Executive Director of Place for North Central London ICB covering local care commissioning, place and neighbourhoods. Prior to that she held various board level roles including as Chief Operating Officer at Camden Clinical Commissioning Group. Sarah also worked in north west London as Deputy Chief Operating Officer at Brent Clinical Commissioning Group and across boroughs through the North West London Strategy and Transformation team.
She worked in the PA Consulting Health and Local Government practice and was a senior leader and Board member at the Office for Public Management - an employee owned organisation working across public services, the voluntary and community sector and adjacent industries. She works closely with clinical and professional leaders, partnerships and provider alliances. She is active with the NHS Confederation, with NHS England and is a member of the newly formed London Neighbourhood Board.
Sarah was previously Chief People Officer for North Central London ICB, having joined from her dual roles as Director of Organisational Development at Guy’s and St Thomas’ NHS Foundation Trust, where she started in 2015, and as Director for the South East London ICS Workforce Programme since 2020. Sarah joined the NHS in 2002 as a graduate General Management Trainee working in operational management across acute, mental health and specialist services.
Sarah has since worked for KPMG supporting NHS clients with cost improvement, strategy development, and whole health economy redesign. She returned to the NHS as Executive Director of Development in a mental health and community trust and then joined the Department for Health and Social Care in 2014 to lead the Dalton Review examining new options and opportunities for providers to collaborate. Sarah is passionate about people and leads the ICB’s People and Culture Directorate.
Ian was previously the Executive Director of Corporate Affairs for North Central London ICB, having worked in this capacity, including previously in a CCG, since 2018.
Ian joined the NHS in 2015 and prior to this worked in a range of senior corporate positions in various local authorities in East Anglia and Camden. Ian led the North Central London CCG merger and is led the transition of North Central London CCG to North Central London ICB.