Executive team

Meet our Executive team

Our executive team is responsible for the day-to-day running of the hospital

Paul Allen
Chief Executive

Paul Allen

Before coming to the RHN Paul was chief executive, and a trustee, of The Abbeyfield Society for six years. Previously, he had been interim chief executive of The Soil Association and chief operating officer and deputy chief executive at the Royal Berkshire NHS Foundation Trust.

Paul initially came to the RHN as the interim chief executive, but was offered the permanent role by the board after being here for six weeks.  He took the permanent role because he had been struck by the obvious need and plight of patients, the real need for the services provided and the incredibly supportive staff.

Paul believes that looking after families is just as important as caring for patients, and that it’s a privilege to be part of the great work of the RHN.

In his spare time he follows Spurs, listens to U2, and goes to Glastonbury every year.

Nanda Ratnavel
Director of Finance

Nanda Ratnavel

Nanda joined the RHN in 2016 and is a professional accountant by background having worked in commerce and a charity before joining the NHS in 1988. Nanda spent 18 years in the NHS before moving on to Finance or Corporate Services Director roles at a number of organisations; most recently he was Deputy Principal, Finance and Resources at Richmond upon Thames College.

Nanda has a track record of helping organisations implement major projects, identify development opportunities, achieve cost reductions and improve financial reporting and performance. All of these are allied with a passion for public service and desire to provide the highest quality service to service users.

He has retained a keen interest in the NHS and is currently on the board of the NHS Confederation where he chairs the audit committee.

Nanda plays football, attends rock concerts and is learning to play the drums in his spare time.

Frances Low
Director of Governance

Frances Low

After studying English at Oxford, Frances became a lawyer by accident.

After qualifying as a solicitor with Hackney Council she  joined London Transport to prosecute on behalf of the British Transport Police. She stayed there for 24 years, becoming Secretary and Legal Director of London Transport and London Underground.

She then had similar positions with The Law Society and The General Dental Council before joining the RHN in 2015.

Frances feels that she has been lucky in the wonderful organisations that she has worked for, but thinks that the RHN is very special in what it does and in the people who live here and work for it. She feels very privileged to be a part of it.

Jane Beaven
Director of Fundraising and Communications

Jane Beaven

Jane began her career on the graduate scheme at Friends Provident (now Aviva), spending time at their Manchester, Salisbury and Dorking offices and becoming ACII qualified.

She then moved into the charity sector in corporate partnerships and business development at Macmillan Cancer Support for eight years.

This was followed by a head of partnerships role at The Children’s Trust, leading the special and gala events, major donors, trusts and foundations and corporate teams.

Jane joined the RHN in April 2014.

Dr Steven Luttrell
Medical Director

portrait of grey haired man with short beard wearing jacket and tie


Steven qualified in pharmacology and medicine at The University of Glasgow and as a barrister at the Inns of Court School of Law in London. He completed his medical training in north London where he practiced as a consultant physician and geriatrician with a special interest in neuro-rehabilitation working with community teams in the boroughs of Camden and Islington, at St Pancras Hospital and the Brain Injury Unit at National Hospital for Neurology.

Steven has had considerable experience in medical leadership and management. He has been a Chief Operating Officer, Medical Director and Group Medical Director. He has worked in leadership roles for for Camden Primary Care Trust, Central and North West London Foundation Trust, Bupa UK and most recently the Circle Health Group/BMI Healthcare.

Steven has an absolute commitment to collaboration, fairness, inclusivity and excellent standards of healthcare. He is known for his empathetic and convincing leadership abilities and exceptional people management skills

Della Warren
Director of Nursing


Della is a highly accomplished international healthcare professional with extensive experience within the NHS and the independent health and social care sector.

She has a national and international reputation for raising standards of care, developing sound governance and clinical leadership, delivering service transformation and driving innovations in patient services to support new business developments and new models of care.

She was awarded Queen’s Nurse title in March 2013 in recognition of her continuing commitment to improving standards of care in the community and to learning and leadership and has maintained the required level of clinical practice and competence to retain this title.

Lesley Mill
Director of Service Delivery



With over 20 years experience in neuro-science, Lesley started her director role in January 2019, after joining the RHN in November 2014 as Head of the Brain Injury Service which expanded to encompass professional lead for Allied Health Professionals in 2016.

Lesley gained her BSc in physiotherapy at Queen Margaret University, Edinburgh and also completed a postgraduate MSc in neuro-physiotherapy. Before joining the RHN, Lesley was Head of Physiotherapy at The Wellington Hospital.

Passionate about access to sport and exercise for physical and mental wellbeing, Lesley volunteers several times a year to support athletes with disabilities at large sporting events.