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Our consultants

Mr Richard Bell

Clinical Lead

Professor Mark Sullivan


Professor Mark Sullivan is a Consultant Urological Surgeon and Associate Professor with research interests in the area of kidney cancer, laparoscopy and robotic surgery. He took up his appointment as a Consultant Urologist in Oxford in April 2003.

His practice is based at the Churchill Hospital, Oxford and the Horton General Hospital, Banbury. He received his medical training from University College and Middlesex Hospital, and then his surgical training in London and Cambridge, before undertaking two years' full time research, culminating in a Doctor of Medicine degree in 1999.

He completed his urological training in Oxford and then undertook a UroOncology fellowship at Monash University Hospital in Melbourne, Australia in 1999, followed by a fellowship in Laparoscopic surgery in Basingstoke, UK in 2002.

He set up a research collaboration with Dr Valentine Macaulay and more latterly in the Nuffield Department of Surgery supervising PhD students looking into the molecular biology of kidney cancer and novel treatments for small renal masses.

He is the Clinical Lead for Renal Surgery in Oxford and sat on the NCRI Renal Studies Group and SPED, the NCRI Screening Committee. He is on the NHS England GIRFT committee which recently produced new guidance 'towards better care for patients with kidney cancer' which described the key features of a good kidney cancer service and lists the quality actions a team can take in the UK.



Mark Sullivan

Mr Simon Brewster

MB BSc MD FRCS (Urol) (Prostate Cancer Lead)

Simon Brewster specialises in prostate cancer and other prostate disease (PSA kinetics, BPH, prostatitis).

Simon graduated from Charing Cross Hospital in 1986, with honours in Pathology and a 1st class Bsc. degree in Anatomy. Here he worked as an anatomy demonstrator for a year, before moving to Bristol to train in general surgery and urology. During this time he developed his interest in prostate disease, having spent two years in full-time laboratory research, leading to the award of his MD doctorate thesis in 1993 from Bristol University.

He was appointed as a consultant in Oxford in 1998, where he pioneered the prostate cancer diagnostic and active surveillance services, radical prostatectomy, Holmium laser prostate enucleation (HoLEP) and is currently setting up prostate brachytherapy with oncologist Dr Philip Camilleri.

He forged a research collaboration with Dr Valentine Macaulay and has supervised four PhD students studying molecular biology of prostate cancer. Simon has written over 60 peer-reviewed papers and has contributed to two textbooks, including the Oxford Handbook of Urology.

He participates in clinical trials, including focal therapy HIFU for prostate cancer. He is a fellow of Hertford College (Oxford University) and a committee member of the oncology sections of both the British Association of Urological Surgeons (BAUS) and the European Association of Urology (EAU).

He is Chairman (and a named pelvic cancer specialist) of the Thames Valley Cancer Network Urology steering group and he edits the content of several patient information booklets and webpages produced by Prostate Cancer UK and other charities. In 2010 he helped to found the Oxfordshire Prostate Cancer Support Group for patients and their relatives.



Simon Brewster

Mr Jeremy Crew

MA BChir MD (Cantab) FRCS (Urol) (Bladder Cancer Lead)

Jeremy Crew graduated from the University of Cambridge in 1986 and completed his medical training at St Thomas' Hospital, London in 1989. After jobs in London and Guildford, Jeremy commenced his specialist urological training at Oxford in 1984. Jeremy undertook a doctorate into the molecular biology of bladder cancer and was awarded his MD in 1999. His thesis won the European Association of Urology Thesis Award and the Sir Walter Langdon Brown Prize from the University of Cambridge.

Jeremy's training in complex pelvic surgery and pelvic oncology was supplemented by fellowships at The Memorial Sloan-Kettering Cancer Centre, New York, the Berne Institute of Urology, Switzerland, and the Mansoura Institute of Urology, Egypt.

Jeremy was appointed as Consultant Urological Surgeon and Honorary Senior Lecturer in Oxford in 2001 where, alongside the general urological, he offers a specialist interest in pelvic oncology. Jeremy is the lead for bladder cancer in Oxford and is recognized nationally for his work in the field. He has performed over 200 radical cystectomies for pelvic disease and published over 60 peer-reviewed papers on aspects of urology.

Outside of his clinical work, Jeremy is involved in management of cancer services and training at both local and national levels. Jeremy is a member of the British Association of Urology Section of Oncology Committee and National Cancer Research Institute (NCRI) Bladder Cancer Specific Group.

Jeremy continues as a member of the national cancer peer review team and the Advisory and Appointments team of the Royal College of Surgeons. As a trainer and teacher Jeremy was appointed on to the Court of Examiners for the FRCS(Urology) examination in 2011. He is involved in medical student examination within Oxford and acts as an external examiner for Southampton University Medical School. Jeremy is a trustee of the Action on Bladder Cancer charity and the Oxford based UCare charity.



Jeremy Crew

Professor Freddie Hamdy

MBChB FRCSEd MD FRCSEd(Urol) MA (Oxon) FRCS FMedSci (Nuffield Professor of Surgery and Professor of Urology)

Freddie Hamdy joined Oxford in October 2008 as Head of the Nuffield Department of Surgery, Nuffield Professor of Surgery, Professor of Urology and Honorary Consultant Urological Surgeon as well as Fellow of Balliol College.

He has spent over ten years as the Chair of Urology, Director of the Division of Clinical Sciences, then Head of Oncology at the University of Sheffield. He trained in Surgery and Urology at Liverpool, Sheffield and Newcastle.

He is Chief Investigator of many studies including the NIHR ProtecT (Prostate testing for cancer and Treatment) study of case-finding and randomised controlled trial of treatment effectiveness in prostate cancer - the largest of its kind worldwide, the NIHR PART trial of partial ablation in prostate cancer compared with radical treatments, and the Cancer Research UK ProMOTE programme to identify prostate cancer cells during robot-assisted laparoscopic radical prostatectomy using molecular targeting and near-infrared fluorescence.

He co-leads the Oxford NIHR Biomedical Research Centre Surgical Innovation and Evaluation Theme and is NIHR Emeritus Senior Investigator.

He was recipient of the Crystal Matula award from the European Association of Urology in 1996, and the Golden Telescope award from the British Association of Urological Surgeons in 2002.

He has been Chairman of the Scientific Committee at the European Association of Urology between 2004-2012. Professor Hamdy was elected Fellow of the Academy of Medical Sciences in 2007.

He has authored over 400 peer-reviewed articles and raised in excess of £60m in peer-reviewed grants. In 2009, he established a robot-assisted surgical platform at Oxford, which has now expanded to multiple surgical specialties and the recent acquisition of two cutting-edge da Vinci robots.

He is establishing various multidisciplinary research platforms at Oxford and introducing with colleagues a new centre for evaluation of minimally-invasive technology including robotic surgery. He is also involved in basic science research looking into the molecular and epigenetic mechanisms of disease progression in prostate/bladder cancer.

He was Director of the Division of Surgery, Women and Oncology (SuWOn) between 2010-2020 at Oxford University Hospitals NHS Foundation Trust.

Clinically his area of expertise is the management of prostate cancer, and he has mentored and trained many clinicians and academics over the past three decades. He was appointed Editor-in-Chief of the British Journal of Urology International in 2020.



Prof Freddie Hamdy

Mr Tom Leslie

BSc (Hons) MB ChB, D.Phil (Oxon) FRCS (Urol)

Mr Leslie is a Consultant Urological Surgeon in Oxford and Milton Keynes. His main clinical areas of interest are robotic prostatectomy, diagnosis of prostate cancer including targeted and template biopsies, minimally invasive treatments for prostate cancer such as HIFU and brachytherapy, general urology, and vasectomy.

He completed his undergraduate and basic surgical training at the Bristol Royal Infirmary. He moved to Oxford in 2004 and completed a D.Phil in Surgery at the University of Oxford. He was then appointed as a Clinical Lecturer in Urology in the Nuffield Department of Surgical Sciences, University of Oxford; in this post he combined research with specialist training in Urology in the Oxford Deanery. For the final two years of his training, he trained as a robotic surgeon under the mentorship of Prof Freddie Hamdy at the Churchill Hospital, Oxford.

In 2013, he was appointed to his current post as a Consultant Urological Surgeon in Oxford and Milton Keynes.

Mr Leslie is a Honorary Senior Clinical Lecturer in the Nuffield Department of Surgical Science, University of Oxford. He is Principle Investigator for NIHR funded clinical trials such as PART, TRANLSATE, ADD-Aspirin, and the Medical Detection Dogs.

He is LCRN Cancer Subspecialty Lead in Urology for Thames Valley and South Midlands Cancer Network and sits on the NCRI Prostate Group, the national steering group for Prostate cancer research in the UK.

Mr Leslie is the Training Programme Director for Urology specialist training in Urology in the Thames Valley Region.

He is Patron of the Milton Keynes Prostate Cancer Support Group and a Trustee of the Oxford based UCare charity.



Tom Leslie

Miss Heidi Tempest


Heidi Tempest qualified at Cambridge University and trained in Norwich.

She was part of Professor Brading's research group in Oxford and completed a postgraduate research degree (MD) at the Cambridge University Department of Pharmacology.

Her specialist registrar training has been on both the Cambridge and Oxford training schemes. She did a fellowship at the Stone and Bladder Centers in Vancouver, Canada before returning to Oxford. She is a Consultant Urological Surgeon based at the Churchill Hospital in Oxford and visiting Consultant Urologist to Horton General Hospital in Banbury, Oxfordshire.

Heidi Tempest

Professor Ben Turney

DPhil (Oxon) MSc (Oxon) MA (Cantab) FRCS(Urol) PGDipE

Ben Turney is an Associate Professor and Consultant Urological Surgeon in Oxford. His research is primarily focused on improving the diagnosis, treatment and prevention of kidney stones and benign prostate disease.

Ben was an undergraduate at the University of Cambridge and has undertaken both a Masters and DPhil in Oxford as part of his surgical training. He was an NIHR Academic clinical lecturer in Oxford prior to appointment as consultant in 2014.

Since 2007, Ben has led the Oxford Stone Group which has examined many aspects of kidney stone disease and its management. He has led collaborations with multiple departments within the University of Oxford. Ben is the local lead for national NIHR clinical trials in kidney stone treatment. He has supervised many academic and clinical students in research and clinical projects.

Since 2014, Ben has co-directed the Oxford and Cambridge Management Course which aims to educate and inform the next generation of clinicians in non-clinical skills such as leadership, management, business planning and medicolegal issues.

Since 2020, Ben has taken on the role as Director of the MSc in Surgical Science in Practice at the University of Oxford. This modular course covers management skills, quality improvement, leadership, teamwork and patient safety, as well as an introduction to the principles of medical education and clinical research methods.

Ben is a subeditor (EndoUrology) for the British Journal of Urology International (BJUI) and an elected committee member of the national BAUS Section of Endourology.

Professor Ben Turney

Mr Alastair Lamb

MA(Oxon) MBChB(Edin) PhD(Cam) FRCS(Urol)

Alastair Lamb joined the team in April 2017 after completing a one year robotic specialty training fellowship at Peter MacCallum Cancer Centre in Melbourne, Australia.

Prior to this, he studied at Oxford and Edinburgh Universities, with initial surgical training in Edinburgh followed by higher surgical training in Cambridge, including a PhD in cancer biology with Professor David Neal.

He is active in basic science research, funded as a Cancer Research UK Clinician Scientist Fellow with the goal of providing a robust molecular platform for accurate decision-making in early stage prostate cancer. He is co-chief investigator of the TRANSLATE Trial and a local investigator for the PROMOTE, PART and FINESSE trials as well as TROMBONE which is now closed.

Clinically, his focus is to deliver excellent and timely prostate cancer care to men referred from the Oxford regional area, focusing on state-of-the-art diagnostics with multiparametric MRI and targeted transperineal biopsies (LATP), followed by robotic-radical prostatectomy (RARP) or indeed active surveillance where appropriate.

Complimentary treatment modalities such as radiation or brachytherapy are provided by other members of the dedicated prostate cancer team. His particular interest is in developments relating to minimal access surgery (MIS) and simulated training, and in investigating the role of robotic surgery in locally advanced or metastatic disease. He also has an interest in novel molecular imaging techniques such as PSMA PET-CT and the use of such modalities in disease stratification and selection of patients for surgery.

He is keen to train other aspiring robotic surgeons and co-leads the fellowship programme at OUH Urology for which enquiries are invited.



Alastair Lamb

Mr Richard Bryant

BMedSci(Hons) MBChB(Hons) PhD FRCSUrol

Richard Bryant undertook his undergraduate medical training at the University of Sheffield, where he completed an intercalated BMedSci degree in pathology in 1995, and qualified in 1998.

After completing Basic Surgical Training in South Yorkshire in 2003, he was awarded a Medical Research Council Fellowship (2004-2007) and undertook a PhD researching molecular mechanisms of prostate cancer progression. He then undertook higher surgical training in Urology in both Sheffield and Oxford, whilst in parallel continuing to pursue his prostate cancer research interests, leading to numerous scientific publications in this field under the mentorship of Professor Freddie Hamdy.

In 2015 he was appointed Locum Consultant Urologist in Oxford and continued to combine clinical practice, specialising in the diagnosis and management of prostate cancer, with prostate cancer research. In 2016 he was successful in obtaining a Cancer Research UK Clinician Scientist Fellowship (joint with the Royal College of Surgeons of England), which enables him to continue to combine his care of prostate cancer patients with a wide and growing prostate cancer research portfolio, covering the breadth of basic science, translational, and clinical research, at the Nuffield Department of Surgical Sciences at the University of Oxford.

Work from his research collaborations is regularly presented at international meetings and published in peer reviewed journals.

He has been the Lead Clinician for the VANCE (VAcciNation in prostate CancEr) Clinical trial in Oxford since 2015, and in 2017 he commenced his current position as Honorary Consultant Urologist at the Churchill Hospital in Oxford.

Mr Bryant delivers undergraduate teaching in surgery and urology to clinical medical students, and is an executive committee member of the Academic Section of the British Association of Urological Surgeons (BAUS) (2017-2019). He is a full member of BAUS, the European Urology Association (EAU), and the American Urology Association (AUA).


Tel: 01865 227065

Richard Bryant

Mr William Gietzmann

MA (Cantab), MBBS, FRCS (Urol)

William Gietzmann is a Consultant Urological Surgeon who subspecialises in open and minimally invasive renal cancer surgery. He also offers a comprehensive service of general urology and uro-oncology.

He began his medical training at the University of Cambridge gaining his intercalated degree in Medical Sciences and the History and Philosophy of Science in 2007. He completed his clinical studies at Guy's King's and St Thomas' Medical School, London graduating in 2010. He undertook his core surgical training in Sussex before completing his higher surgical training in the East of Scotland rotating through hospitals in Aberdeen, Edinburgh and Dundee.

After undertaking a locum consultant post at the Aberdeen Royal Infirmary he moved to Oxford to take up his substantive post in 2019.

He is actively involved in collaborative research having been appointed an honorary clinical lecturer at Aberdeen University. He has worked on several large systematic reviews including papers on behalf of the European Association of Urologists Guidelines Panel and lead authorship of a Cochrane Review.

William Gietzmann

Mr Musaab Sarmad Yassin


Musaab joined the Oxford team in 2021 as a Consultant Urological Surgeon with a special interest in Male Fertility, Microsurgery, Andrology, and BPH/LUTS surgeries. He trained in Surgery and Urology in Glasgow, Bristol, Oxford and London.

Musaab joined Bristol Urological Institute in 2014 as a research fellow in Urodynamics. He completed his specialist training through the Oxford Deanery Scheme, giving him exposure to comprehensive training in a world-renowned hospital.

He also completed a prestigious fellowship in Male Fertility, Microsurgery and Andrology at Imperial College in London before joining the Oxford team.

Musaab is currently based at the Churchill Hospital in Oxford and holds sessions as a Consultant Andrologist at the Imperial College Hospitals in London.

Musaab's focus is on delivering state-of-the-art Men's Health care. He provides a tertiary Male Fertility and Andrology service enhanced by a multidisciplinary team.

He also has a particular interest in treating Benign Prostate Enlargement using the latest minimally-invasive and cutting-edge treatments, including Holmium and Thulium lasers, Urolift and water vapour therapy (REZUM). Musaab leads the bespoke Oxford One-Stop LUTs clinic offering comprehensive options, tailored to the patient's goals.

Musaab Sarmad Yassin

Mr Ibrahim Jour (Locum)

BS (AUB) MD (BAL) DFMS (Poitiers) FRCS (Urol)

Ibrahim Jour completed a Bachelor of Science in Biology at the American University of Beirut in 2004. He graduated as a medical doctor at the University of Balamand in Lebanon in 2008. After a surgical elective at Memorial Sloan Kettering Cancer centre in New York in 2007, Ibrahim started his specialist urological training at Saint George Hospital University Medical Centre in Beirut.

In 2012, as part of collaboration between the University of Balamand in Lebanon and CHU Poitiers in France, he completed his residency training in France at Centre Hospitalier d’Angoulême and obtained a DFMS (Diplôme de formation médicale spécialisée) in Urology in 2014 and a Specialty Diploma in Urology from the University of Balamand.

During his presence in France he was trained in endo-urology and minimally invasive urological surgery. He completed a diploma in Urodynamics at the University of Paris Diderot, an inter-university diploma in Male infertility and assisted medical reproduction at the University of Montpellier and the University of Paul Sabatier- Toulouse with 'mention Bien' and a diploma in laparoscopic urological surgery at the University of Strasbourg (IRCAD).

Ibrahim completed a Robotic and Laparoscopic fellowship at Nottingham University Hospitals before obtaining his FRCS (Urol). He then started working as a locum consultant urologist since 2018 where his subspecialty interest has been focused on endo-urology including stone surgery, general urology, and minimally invasive surgery.

Ibrahim Jour

Mr Francisco Lopez (Locum)


Francisco Lopez qualified from Universidad de Los Andes medical school in Santiago de Chile. After graduating, he obtained a master's degree in clinical epidemiology at the same University.

He trained at Hospital Militar de Santiago and Hospital Parroquial de San Bernardo, in Santiago de Chile, completing his urological training in 2014.

After working for five years as a consultant in Chile, he came to Oxford in 2019 as a fellow in pelvic uro-oncology and robotic surgery. He was appointed as a Locum Consultant Urological Surgeon at Oxford after completing the fellowship programme on 1 June 2021.

He specialises in prostate and bladder cancer, with a particular interest in robotic surgery.



Francisco Lopez

Mr Sarp Keskin (Locum)


Sarp Keskin joined the team in October 2020 after completing a one-year senior clinical fellowship at Imperial College London NHS Trust.

Prior to this, he studied at Istanbul, with initial surgical training in Izmir followed by higher surgical training in Istanbul, including a postdoctoral fellowship in renal cancers with Professor Jose Antonio Karam and Christopher Wood at the University of Texas, MD Anderson Cancer Center, USA.

He is active in research with the goal of providing better treatment options for kidney stone disease and renal cancers.

Clinically, his focus is to deliver excellent and timely care to all his patients.

He has a particular interest in endourological procedures, particularly new adopting new technology to the well-established operating modalities. He also has interest in andrology and microscopic surgery as well as general urology.

He is keen to train other endourological surgeons as well as teaching medical students. He also is an honorary Professor in Bahcesehir University Istanbul.

Sarp Keskin

Uro-oncology Team

Clinical Oncologists

  • Dr Anne Kiltie
  • Dr Ami Sabharwal
  • Dr Philip Camilleri
  • Dr Rob Stewart
  • Dr Philip Turner

Medical Oncologists

  • Dr Andrew Protheroe
  • Dr Meenali Chitnis

Stoma and Neobladder Care Team

Susan Farrow, Specialist Nurse Practitioner

Last reviewed:04 March 2024