Executive directors
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Jonathan Warren, Chief Executive

I have a track record of improving NHS Trusts by creating the conditions where staff are provided with the skills, space and support to lead improvement with service users and carers.

A senior manager and clinical leader with over 35 years’ experience in a variety of healthcare settings, but predominantly within mental health, I was recently Deputy Chief Executive and Chief Nurse for Surrey and Borders Partnership NHS Foundation Trust, which included 10 months as Acting Chief Executive. Before that, I occupied a similar role at East London NHS Foundation Trust. 

At both Surrey and East London, I led the work that enabled both organisations to improve their Care Quality Commission rating. At East London, this led to the Trust becoming the first combined mental health and community health services trust to achieve ‘outstanding’. 

I am dedicated to creating cultures where staff and senior management are connected through a joint ambition to deliver the very best care, maximising staff talents, experience and fulfilment at work.  

I also have a national profile as a specialist advisor to the Care Quality Commission and the National Mental Health Patient Safety Project. In addition, I have received international recognition for my work on quality improvement.​


​Mason Fitzgerald, Deputy Chief Executive and Director of Strategic Partnerships

I am responsible for external facing relationships with the Norfolk and Waveney Sustainability and Transformation Partnership (STP) and North East Essex and Suffolk STP and a range of stakeholders, including the Third Sector. 

Leading NSFT’s new strategy, I work closely with our service and clinical directors to support them in their ongoing engagement, helping to bring the strategy to life.

I joined NSFT from East London NHS Foundation Trust (ELFT) where I was Director of Planning and Performance, having joined the Trust in 2002. I have had numerous roles and responsibilities, including playing a leading part in ELFT’s CQC inspections which led to the trust being rated outstanding and developing and rolling out ELFT’s successful strategy.

Originally from, New Zealand, I trained as a lawyer in my homeland and America. I have been ELFT’s Trust Secretary, led the governance process toward Foundation Trust status, and played a major role in the acquisition of community services in east London.

Stuart Richardson, Chief Operating Officer

Before jo​ining NSFT, I was Managing Director of Mental Health and Specialist Services with Pennine Care NHS Foundation Trust, where I successfully introduced a cultural change programme to support quality improvement and financial sustainability. I am a registered learning disability nurse, and have held senior roles in community services and the learning disability service.

I am very impressed with everyone’s commitment and willingness to enhance the quality of services which NSFT provides and am excited that I’ve been given the opportunity to be involved in the improvement journey at the Trust.

My focus is on getting care right for the people who use our services and the staff working in them. We want to make sure that we are listening to the workforce while also engaging with our service users to ensure we are providing the care which they want and need. It’s also vitally important that staff feel empowered and able to make positive changes to improve quality so that they too can be part of the Trust’s transformation. ​

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Daryl Chapman, Chief Finance Officer

I am delighted to be the Trust's Chief Finance Officer, a position I fulfilled on an interim basis from October 2017 through to the substantive position I secured in July 2020. 

Prior to this I held Finance Director roles with a variety of private sector companies, and most recently spending 16 months working as Finance Lead for the Norfolk and Waveney Sustainability and Transformation Partnership (STP).

i have a long history with NSFT, having previously held the position of Deputy Director of Finance at the Trust around seven years ago.

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Diane Hull, Chief Nurse

I joined NSFT in November 2018 after spending two years as Chief Nurse with Sussex Partnership NHS Foundation Trust, where I helped drive through significant improvements to patient care. Before this, I held several senior roles at East London Foundation Trust, including Interim Director of Services, Deputy Director of Nursing and Associate Director for Forensic Nursing.

I qualified as a Registered Mental Health Nurse in 1990 and worked at St Clements in East London before moving to Hackney, where I fulfilled roles such as Nurse Specialist, Matron and Lead Nurse.

At NSFT, I will be responsible for improving safety and the experience which service users have when accessing care, as well as their confidence in our services. Recruiting and retaining high-​quality staff will also be important – our aim will be to offer something really exciting which enthuses people while also looking after our existing staff and making sure they feel valued.

I am looking forward to helping create the right conditions and culture so that we can make the necessary changes to improve mental healthcare for everyone in Norfolk and Suffolk.

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Dr Dan Dalton, Chief Medical Officer 

I qualified in medicine in 1999 before going on to complete my core psychiatric training in East London and higher training in forensic psychiatry in the Eastern Deanery. I have worked as a consultant psychiatrist since 2009, gaining experience in both inpatient and community services.

Responsible for providing strong clinical leadership at our Trust, I play a key role in inspiring and supporting colleagues as we continue to develop our new model of care. I sit on the Board as lead executive for clinical risk management, medical management and professional development, pharmacy and research, and provide advice on the quality and safety of all clinical matters.

I passionately believe that Norfolk and Suffolk need and deserve mental health services of the highest quality. By empowering the workforce with a strong clinical voice and adopting a creative approach to the way services are coproduced and delivered, I know that we can develop services which excel.