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Renal Management team

Dr Natalie Borman
Care Group Director - Wessex Kidney Centre

I qualified from the University of Wales College of Medicine in 2003 and became a Nephrology consultant at Wessex Kidney Centre in 2014. I completed a research MD in transplant pharmacogenetics from the University of Southampton. I  am the clinical lead for Home Haemodialysis with one of the largest Home Hd programmes in the UK. My areas of clinical expertise is Haemodialysis and Home Haemodialysis and also provide nephrology services in the Salisbury and surrounding areas. I became the Care Group Director for WKC in 2018.


Dr Robert Lewis

I graduated in 1984 from Westminster Medical School, now part of Imperial College London. I trained as a nephrologist in London, working at St Bartholomew’s, Kings College and Guy’s Hospitals. I completed my higher medical degree (MD) at Guy’s Hospital in 1996 and have been a consultant nephrologist at the Wessex Kidney Centre since 1997. I was Director of the service between 2001 and 2008 and took on the role again in 2016. My clinics are held at St Richards Hospital, Chichester and at Bognor Regis War Memorial Hospital.

My particular area of interest is early chronic kidney disease (CKD). I was founder member of the national CKD Strategy Group and helped develop the 2014 NICE guidelines for management of CKD in the UK. I authored a book “Chronic Kidney Disease: a guide for the non-specialist” in 2012. I have held executive committee roles with the Renal Association and British Renal Association and am currently working with NICE to develop clinical guidelines and quality standards.

I am married to a local GP and live with our two teenage kids (and Alfie the dog) in Old Portsmouth. Music is my thing; Beethoven, Wagner, Prog-rock, Hendrix, Blues, Hip-hop - don’t care as long as it’s loud.


Steven Dudfield
Renal General Manager

My role involves day to day management of the department including responsibilities towards workforce, finance, governance, and performance. I am expected to monitor and support the improvement of performance against large variety national and local standards across these responsibilities.  The role also involves service development and improvement generally though the management of programmes of work and individual projects within the department with the aims to improve safety, quality, efficiency, and health within the CSC.  These are broad responsibilities and as the Renal and Transplant team we all need to develop ideas and implement changes that will improve the services we run for patients.

I manage the money and performance within the department and have to ensure there are effective processes to ensure we are utilising resources appropriately. Specifically areas I’m currently involved in are; developing a strategy for haemodialysis across the whole WKC region, developing a CSC wide cost improvement plan, working to improve the patient transport experience, and developing the ward board rounds taking place on the inpatient wards.  There are always a lot of projects on the go.  I’m happy to listen to any ideas you may have so please come and find me, hopefully I can help you. 

I really enjoy my job because every day is different. I get to learn about a wide variety of different roles within the CSC and how they fit into the different patient pathways.  I find that everyone I have spoken to is open to change and have ideas about how to improve the services they run.  I hope that I can take in all of the good ideas everyone has and help to make the changes that people want to make within the CSC.

Outside of work I have a wonderful wife and little one called Sammy. I enjoy spending time with my family and friends.  To relax I enjoy cycling the bike, surfing (once in a blue moon these days), and walking the dog.  


Mr Keith Graetz


Consultant Transplant and General Surgeon and Clinical Director for Transplant

I have been a consultant surgeon in Portsmouth for 8 years. My specialist interests include live donor kidney surgery (donor and recipient) and laparoscopic and open splenectomy surgery.

I have been a consultant surgeon in Portsmouth for over 10 years. My specialist interests include live donor kidney surgery (donor and recipient) and laparoscopic and open splenectomy surgery.

I also offer a high volume renal failure surgery, abdominal hernia and benign biliary surgery service. This is supported by active involvement with emergency transplant/renal failure surgery and general surgery.

I am currently the Clinical Lead for Transplantation in Portsmouth and actively participate in live donor pathway development at a national level. I also have an extended role in mentoring, supervising and training junior surgeons and newly qualified doctors.

   Sheila Humphrey - Renal Head of Nursing


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Last updated - 13 August 2019
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