Our radiologists

We work with a variety of radiologists who each have their own speciality, allowing us to match patients’ clinical indications with the best radiologist to ensure the highest quality reporting.

Dr Na'eem Ahmed

Dr Na’eem Ahmed, Non-Executive Clinical Director

Qualifications: MBBS BSc PGCert FRCR FHEA

Specialities: Clinical Leadership, Quality Improvement, and Clinical Governance

Dr Na’eem Ahmed is a Consultant Radiologist and our Non-Executive Clinical Director. He brings a wealth of experience to Oryon Imaging, having been recognised many times for his commitment to healthcare and other endeavours, including being awarded the Point of Light award from Prime Minister David Cameron and the British Empire Medal in the Queen’s Birthday Honours 2019.

Dr Ahmed completed undergraduate medicine at Guy’s, King’s and St Thomas’ Hospital, winning the St Thomas’ Hospital Cup. He began Academic Foundation Training at King’s College Hospital, before completing Radiology training with subspecialty imaging Fellowship at Chelsea and Westminster Hospital.

His advisory roles include:

  • The National Advisory Group for the Keogh Review, which looked at care quality in trusts with higher death rates
  • NHS think tank, REFORM, where he reviewed clinical leadership development
  • UK Aid’s youth engagement strategy, working for former Secretary of State for International Development Rt Hon Justine Greening MP at the Department for International Development (DFID)
  • NHS England and Improvement’s response to the impact of COVID-19 on Black, Asian and Minority Ethnic (BAME) staff during the Coronavirus pandemic
  • Mayor of London’s Team London
  • Trustee for Macmillan Cancer Support
  • Associate Policy Fellow (Technology and Public Policy) at the Tony Blair Institute of Global Change
  • Governor at Kingston Grammar School

Dr Ahmed is also Founder of Selfless, a global health NGO, co-Founder of the MedTech start-up ImproveWell and Consultant Radiologist at Chelsea and Westminster Hospital.

Dr Ali Zavareh

Dr Ali Zavareh, Consultant Radiologist

Qualifications: MD, FRCR

Specialities: Sports, Rheumatology, Orthopaedic and Spinal imaging

Dr. Zavareh did his training in clinical radiology at University College London Hospital. He then went on to Royal National Orthopaedic Hospital (Stanmore) and Nuffield Orthopaedic Centre (Oxford) for his musculoskeletal (MSK) subspecialty training, followed by a one-year MSK Radiology fellowship at the North Bristol NHS Trust. Since 2014, he has been an MSK Radiology Consultant at Guy’s and St Thomas’ Hospitals NHS Foundation Trust. His academic interests are in education and research, regularly teaching at courses and publishing in peer reviewed journals.

Dr Nyree Griffin

Dr Nyree Griffin, Consultant Radiologist

Qualifications: MB ChB, MD, MRCS, FRCR

Specialities: Ultrasound, Gastrointestinal imaging

Dr Nyree Griffin graduated with Honours in Medicine at the University of Bristol and was awarded the prestigious Gold Medal Award for coming first in her year. She undertook a 2-year Research Fellowship at the University of Nottingham and received a Doctorate in Medicine.
She was appointed a Consultant Radiologist at Guy’s and St Thomas’ NHS Foundation Trust in 2008, having trained in general radiology at Chelsea and Westminster Hospital, followed by a 1 year Cross-sectional fellowship at Addenbrooke’s Hospital in Cambridge. She is the Gastrointestinal radiology lead in her trust, having set up a successful CT colonography and MR enterography service. She has extensive experience in hepatobiliary, gastrointestinal and pelvic imaging.
Dr Griffin has published over 50 peer-reviewed publications, as well as numerous book chapters. She has co-authored and co-edited a best selling major 1 volume (1000 page) radiology textbook – Grainger & Allison’s Diagnostic Radiology Essentials (Lee A Grant, Nyree Griffin, 1st and 2nd Edition, Elsevier, May 2013/Dec 2018). She is currently the Radiology Regional Training Programme Director for South East London.
In additional to oncology/abdominal cross sectional reporting, Dr Griffin can offer general/pelvic ultrasound (including transvaginal ultrasound), small bowel ultrasound, small parts and vascular ultrasound.

Dr Naga Kandasamy

Dr Naga Kandasamy, Consultant Diagnostic and Interventional Neuroradiologist

Qualifications: MB BS DMRD FRCR

Specialities: Spinal, Head, Neck imaging

After completing his general radiology training at the Royal Free hospital (London) with neuroradiology training at the National hospital for neurology and neurosurgery (Queen’s square, London) and Great Ormond street hospital, (London) Dr Kandasamy undertook further diagnostic and interventional neuroradiology training as part of the pan-London neuroradiology “fellowship” working in leading hospitals and neuro-sciences centres (Charing Cross hospital, King’s College hospital and St George’s Hospital). Since 2009 Dr Kandasamy has been a substantive Consultant in Diagnostic and Interventional Neuroradiology at King’s college hospital, one of the country’s leading and reputed neuro-sciences centre. He does most aspects of Brain and spine imaging with particular interest in neuro-oncology (brain tumour) imaging, stroke (imaging and treatment) and neurovascular (brain aneurysm, brain / spinal cord vascular malformations) imaging and their treatment. Dr Kandasamy routinely offers consultation for patients with brain and spinal cord vascular abnormalities for discussion and treatment under a joint neurovascular multidisciplinary (neuroradiology, neurosurgery and neurology) set up. Dr Kandasamy lectures extensively both within the UK and abroad.

Dr Jean Marie U-King-Im

Dr Jean Marie U-King-Im, Consultant Neuroradiologist

Qualifications: MB BS MRCS PHD FRCR

Specialities: Spinal imaging, Vascular Imaging, Paediatric neuroimaging

Dr. Jean Marie U-King-Im is a Consultant Neuroradiologist at King’s College Hospital and Guy’s and St Thomas Hospitals, part of King’s Health Partners Academic Health Sciences Centre, In London. He trained in general radiology at Addenbrooke’s Hospital in Cambridge and completed a 2 year diagnostic fellowship in adult and paediatric neuroimaging as well as head and neck/ENT/maxillofacial imaging at the University of Toronto in Canada. He has special interests in spinal imaging, vascular imaging and imaging of stroke/cerebrovascular disease, imaging of cognitive impairment as well as paediatric neuroimaging. Dr U-King-Im has published extensively with more than 60 peer-reviewed articles in high impact radiology journals as well as several book chapters. He holds a PHD in the field of neurovascular imaging from the University of Cambridge, and has won several prizes for his research and during his clinical training. He is also actively involved in teaching radiology trainees.

Professor Janani Pillai

Professor Janani Pillai, Consultant Radiologist

Qualifications: MBBS FRCR EDiR

Specialities: Musculoskeletal Radiology, Ultrasound, MRI, Imaging Guided Injections, CT, X Ray interpretation

Professor Janani Pillai is a Consultant Radiologist with a special interest in multimodality imaging of skeletal injuries using Ultrasound, MRI, X-rays and CT. She is also an expert at providing imaging-guided musculoskeletal injections. She is experienced in elite sports, has worked as a Sports Radiologist in the XXII Commonwealth Games and continues to work with a Professional Sports club.

After completing her general radiology training at King’s College Hospital, London, she obtained her FRCR and the EDiR (European diploma in radiology). Whilst at King’s, the extensive exposure to trauma and musculoskeletal radiology, King’s being one of the 4 major trauma centres in London, kindled her interest in musculoskeletal imaging, prompting her to obtain the sought-after musculoskeletal fellowship at Chelsea and Westminster Hospital, London. As a part of the training, she also did an Honorary Fellowship at Royal National Orthopaedic Hospital, Stanmore. Prof Pillai has qualified in European Diploma in Musculoskeletal Radiology and is now a substantive Consultant Radiologist in the London North West Health Care NHS Trust (Northwick Park and Central Middlesex Hospitals).

Prof J K Pillai (Previously Dr J Kumaraguru) is a recipient of the Institute of Leadership and Management endorsed Award as a Radiology Registrar in 2015. She is an invited member of the European Society of Skeletal Radiologists Sports, Arthritis and Ultrasound Subcommittees and was previously part of the British Society of Skeletal Radiologists Expert panel for iREFER.

Prof Pillai has been nominated for The Trainer of the Year Award in 2017 for her commitment to teaching. She is GMC recognised Trainer, Medical Educator and an Honorary Professor of MSK Radiology, passionately enjoys teaching radiology including Ultrasound imaging to Radiologists, Doctors and other Healthcare Professionals. She is involved in teaching/ examining medical students from Brunel University, Imperial College. Additionally, she serves on the interview panel for recruiting Radiologists. She continues to teach, lecture, and chair various regional meetings, national and international arenas on invite.

Dr Syed Babar

Dr Syed Babar, Consultant Radiologist

Qualifications: MBBS, MCPS, FCPS, DMRD, FRCR

Specialities: Orthopaedic, sports and musculoskeletal imaging,
Gynaecological imaging

Dr. Syed Babar is a Consultant Radiologist and lead specialist in musculoskeletal, orthopaedic & rheumatological imaging at the Hammersmith Hospital. He is a Senior Lecturer at Imperial College, London, and also runs private diagnostic and interventional clinics at a number of locations across London. Dr Babar has expertise in a number of modalities including MRI and ultrasound scanning. Dr. Babar trained in Radiology at the Royal Free Hospital in London and did his fellowship in body MRI imaging at St Bartholomew’s Hospital in London. He is the
Assistant Editor of Clinical Radiology, President of the London Sheffield Imaging Conference, and an invited Speaker at various National and International Imaging Conferences.

Dr Sajid Butt

Dr Sajid Butt, Consultant Radiologist

Qualifications: MB BS, FCPS, FRCR

Specialities: Musculoskeletal disorders, Image guided injections

Dr. Sajid Butt is a Consultant Radiologist specialising in musculoskeletal disorders. Since 2005, he has worked as a Consultant Radiologist at the Royal National Orthopaedic Hospital, NHS Trust, Stanmore. This tertiary care centre is an international centre of excellence. His areas of special interest are sports injury imaging, bone and soft tissue tumours and spinal imaging. He also performs image guided therapeutic and diagnostic injections for spinal and orthopaedic disorders. Dr. Butt completed his radiology residency from Guy’s & St. Thomas’ Hospital NHS Foundation Trust in 2003. He then completed a one-year fellowship in radiology of musculoskeletal and spinal disorders from the Robert Jones & Agnes Hunt Orthopaedic Hospital, Oswestry in 2004. He has been an active organiser of training and teaching activities at national and international levels.

Dr Kevin Lotzof

Dr Kevin Lotzof, Consultant Radiologist

Qualifications: MB BCh FRCR

Specialities: Interventional radiology, MRI of TMJ, Head and Neck,
Musculoskeletal imaging

Dr Lotzof is a Consultant Interventional Radiologist. He performs the whole range of interventional procedures from simple ultrasound guide injections and biopsies through placement of venous access lines and filters to complex angioplasty, evar and embolisation. He has a special interest in the treatment of venous and arteriovenous malformations. His other main interest is MRI of the TMJ. He also reports on all CT examinations except cardiac and all MRI examinations except cardiac and breast.

Dr Giles Rottenberg

Dr Giles Rottenberg, Consultant Radiologist

Qualifications: MB BS FRCR

Specialities: Abdominal radiology, Urogenital tract radiology, Ultrasound,

Dr. Giles Rottenberg is a Consultant Radiologist at Guys and St Thomas Hospital NHS Foundation Trust and at the London Bridge Hospital. He has been a Consultant Radiologist since 1997 with a special interest in abdominal and urogenital tract radiology. He performs general and specialised ultrasound including endoluminal, transrectal and trans vaginal. He also performs a wide range of body CT and specialises in MRI of the pelvis and urogenital tract. Giles writes extensively on the imaging of renal masses, renal cancer and the staging of renal malignancy. He lectures extensively in the UK as well as in North America and Japan. Dr. Rottenberg qualified in medicine from St Mary’s Hospital, London and trained in Radiology at The Middlesex and University college Hospitals.

Dr Dhiren Shah

Dr Dhiren Shah, Consultant Radiologist

Qualifications: MA (Cantab), MBBS, MRCS, FRCR

Specialities: Musculoskeletal, sports and spinal imaging.
Ultrasound, MRI, musculoskeletal intervention.

Dr. Dhiren Shah is a Consultant Radiologist at Northwick Park Hospital.

He trained in radiology at Guy’s and St. Thomas Hospitals, and specialised in musculoskeletal radiology after completing two prestigious fellowships in Oxford and Toronto.

Dr Shah has co-authored two books in MSK radiology, published in peer-reviewed radiology journals, and has lectured extensively at general and MSK radiology conferences.

He has particular expertise in sports imaging, having provided MSK radiology services to elite athletes at international sporting events including the Commonwealth Games in Glasgow, 2014, European Games in Baku, 2015, Asian Indoor Games in Ashgabat, 2017, and World Athletics Championships in London, 2017.

Professor Philip Gishen

Professor Philip Gishen, Consultant Neuroradiologist

Qualifications: MB BCh DMRD FRCR

Specialities: Imaging, diagnosis and treatment of lower back pain

Professor Gishen is Head of the Department of Imaging at Hammersmith, Charing Cross and St Mary’s Hospitals.

He specialises in the diagnosis and treatment of lower back pain and sciatica using all radiological modalities (plain film, lumbar spine, screening, CT, MR, and Isotope scanning including SPECT-CT and PET-CT) to establish the most accurate diagnosis and treatment possible. He readily reports on plain films, CT and magnetic resonance scans.

He has published widely on topics related to back pain and sciatica.

Dr Phil Rich

Dr Phil Rich, Consultant Neuroradiologist

Qualifications: MB FRCS FRCR

Specialities: Adult and paediatric neuroradiology. Spinal imaging.

Dr Philip Rich is a Consultant Adult & Paediatric Neuroradiologist based in the Atkinson Morley Neuroscience Centre at St George’s Hospital in London and also attending The Royal Marsden Hospital and Kingston Hospital. He has a comprehensive diagnostic neuroradiology practice encompassing the entire age range from foetal MRI and paediatric neuroimaging to the full spectrum of adult neurological disease including spinal imaging. His research interests are currently centred in brain tumour imaging having previously published on cerebrovascular disease and other topics.

Dr Kunwar Bhatia

Dr Kunwar Bhatia, Consultant Radiologist

Qualifications: B Med Sci MBBS MRCS DLO FRCR (England)

Specialities: Head and Neck imaging including CT, MRI and Ultrasound

Dr Kunwar Bhatia is a consultant head and neck radiologist at Imperial College Healthcare NHS Trust, London. His background includes a substantive academic appointment in Hong Kong as an Associate Professor for the Chinese University of Hong Kong. He has lectured extensively and published numerous book chapters and original research papers and reviews on a range of head and neck topics, and is still an active researcher and educator in this field.

Dr John Stevenson

Dr John Stevenson, Consultant Metabolic Physician

Qualifications: MBBS FRCP FESC MFSEM

Specialities: Metabolic disorders, coronary disease prevention, bone disease and calcium metabolism, general endocrinology, general internal medicine.

Dr John Stevenson is a consultant metabolic physician, based at Royal Brompton Hospital, who treats private and NHS patients.

In 1972, Dr Stevenson qualified in medicine at King’s College Hospital Medical School (now part of King’s College London), then completed his training in general medicine in London and Southampton.

Following that, he completed specialist training in endocrinology and metabolism at the Royal Postgraduate Medical School at Hammersmith Hospital (now part of Imperial College London). He went on to extend his research and expertise into the effects of sex hormone deficiency and replacement both on the skeleton and on the cardiovascular system.

In 1993, he jointly established the UK’s first female heart disease clinic at Royal Brompton Hospital.

Samir Alwan

Samir Alwan, Consultant Radiologist

Specialities: Paediatric and Cardiothoracic Imaging

Samir Alwan is a Consultant Radiologist with a subspecialist interest in Paediatric and Cardiothoracic imaging at Chelsea & Westminster Hospital NHS Foundation Trust, having been appointed in 2019.

He completed undergraduate training from Guy’s, Kings and St Thomas’ Medical School, as well as obtaining an Intercalated BSc in Radiological Sciences. He undertook radiology training at Northwick Park Hospital with subspecialty training at Chelsea and Westminster Hospital as well as higher-level training at Great Ormond Street and Royal Brompton Hospitals.

He has extensive experience in a wide range of Paediatric and Cardiothoracic imaging as well as general body CT, ultrasound and MRI reporting. He also has a keen interest in teaching and is currently the Training Programme Director for the Radiology training scheme.

In 1993, he jointly established the UK’s first female heart disease clinic at Royal Brompton Hospital.

Sangoh Lee

Dr Sangoh Lee, Consultant Radiologist

Qualifications: MBBS, BSc, MRCP, FRCR

Specialities: Musculoskeletal, sports and trauma imaging. Image-guided musculoskeletal intervention.

Dr Sangoh Lee is a Consultant Radiologist at Imperial College Healthcare NHS Trust, working at St Mary’s, Charing Cross and Hammersmith Hospitals. He completed general and specialist radiology training at University Hospitals of Leicester and Royal National Orthopaedic hospitals. His regular practice includes imaging of musculoskeletal and spinal conditions, image-guided intervention, major trauma, and other complex orthopaedic and rheumatological disorders. He is very keen on medical education and currently lectures and examines several national and international courses.

Dr Ziyad Saloojee

Dr Ziyad Saloojee, Consultant Neuroradiologist

Qualifications: MBBS, BSc(Hons), MRCP, FRCR

Specialities: Neuroradiology

Dr Ziyad Saloojee is a Consultant Neuroradiologist at University Hospital Southampton NHS Trust. He undertook dual sub-speciality and fellowship training in both Head & Neck and Diagnostic Neuroradiology on the pan-London Neuroradiology fellowship programme before taking up a substantive Consultant post on the South Coast. He reports on the full gamut and complexity of ENT and Diagnostic Neuroimaging. He has a strong interest in teaching and provides both formal educational and clinical supervision to radiology registrars in his department. He has a number of research interests predominantly focused on the role of quantitative MRI biomarkers in diagnosis and surveillance of neurodegenerative and movement disorders.

Book an appointment

  • MRI from £275
  • Ultrasound from £295
  • X-ray from £70
  • DEXA from £115

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020 7042 1888



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