Medical specialists – Top Doctors UK
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Professional statement

Mr Jeremy Granville-Chapman is a consultant upper limb orthopaedic surgeon practising in Berkshire and Surrey.

 After graduating from St Bartholomew’s and The Royal London Medical School in 2001, Mr Granville-Chapman pursued further training as an army doctor, excelling as the top candidate in entry officer medical training at Sandhurst Royal Military Academy. He then served as regimental medical officer with the Royal Scots Dragoon Guards in Germany before commencing surgical training in 2005.
 
He attained his MRCS qualification in 2007 during his junior surgical training and then conducted impactful research into resuscitation strategies for military wounding, earning a Doctorate of Medicine (MD) degree. His military career included surgical deployments to Iraq and Afghanistan, as well as coordinating care for repatriated wounded service personnel in Birmingham.
 
Specialist orthopaedic training in the London (South West Thames) region prepared Mr Granville-Chapman for his role as a consultant orthopaedic surgeon. Towards the end of this, he excelled in the FRCS (Tr&Orth)exams, winning the Sir Walter Mercer Gold Medal for the top performance nationwide 2013. He was selected as the British Orthopaedic Association’s Young Ambassador to Hong Kong in 2104

Fellowship training at Wrightington Hospital and Brighton refined his specialist skills in advanced upper limb and trauma surgery.
 
Mr Granville-Chapman took up his consultant post at Frimley Health in 2016. He retired from the Army in 2019 as a Lieutenant Colonel.

Mr Granville-Chapman contributes to the advancement of orthopaedic surgery through research and education. He has published in scientific journals, presented at international and national meetings, and received recognition, including the Ram Kumar Chatterjee BOA Travelling Fellowship. He shares his expertise through teaching engagements on shoulder arthroscopic and open surgery and fellowship exam preparation courses. 
 
Mr Granville-Chapman is affiliated with several professional organisations, including the British Orthopaedic Association, The British Elbow and Shoulder Surgery Society, the Combined Services Orthopaedic Society, and the Old Etonian Medical Society.
 
His private practice focuses exclusively on the upper limb, addressing conditions from shoulder instability to elbow arthritis.

Committed to patient-centred care, Mr Granville-Chapman utilises advanced surgical techniques to restore function and alleviate discomfort for his patients. He has particular expertise in the arthroscopic (keyhole) management of the shoulder and elbow and in shoulder replacement surgery.

 

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Mr Jan Herzog is a consultant spinal surgeon with practices in Stanmore, Bushey and Central London who specialises in complex paediatric and adult spinal deformities, including scoliosis and kyphosis. He also has a special interest in degenerative pathologies of the spine, including spinal stenosis, sciatica, lower back pain and disc disease. He is an expert in spinal fusion for neurogenic pain and minimally invasive spinal procedures, and uses spinal navigation regularly.

Mr Herzog performs surgeries at the Royal National Orthopaedic Hospital and currently sees patients at Spire Bushey Hospital and at St John & St Elizabeth Hospital.

Mr Herzog qualified from Humboldt University of Berlin in 2004 and then obtained his MSc in Diagnostic Imaging from Oxford University, before going on to complete his surgical training in trauma and orthopaedics in Germany. He then received a visiting fellowship to Harvard university teaching hospital in Boston and was later appointed trauma and orthopaedic consultant at Charité in Berlin, where he developed his medical interest in spinal surgery. To pursue this speciality, Mr Herzog relocated to the UK, where he accomplished three spinal fellowships: at Frimley Park Hospital, at St George’s and at the Royal National Orthopaedic Hospital.

Further to his spinal surgery practice, Mr Herzog is actively involved in the research of scoliosis, spinal myeloma, and spinal navigation. He is the author of several publications, has lectured both nationally and internationally, and has a special interest in back pain in athletes due to his background in international rowing for Germany (both as an athlete and a national team doctor).

Mr Herzog is on the GMC’s specialist register for trauma and orthopaedic surgery and is a member of the British Scoliosis Society and the Deutsche Wirbelsäulengesellschaft.

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Mr Deep Malde is a consultant hepatobiliary and pancreatic surgeon based at the University Hospitals of Leicester, providing specialist care to both private and NHS patients who have problems relating to the gallbladder, pancreas and liver across Leicestershire and its surrounding counties. He practises at the Nuffield Health Leicester, Spire Leicester, Woodland Hospital (Kettering) and Blakeland Hospitals (Milton Keynes) where he consults every week.

Mr Malde specialises in laparoscopic (keyhole) surgery for gallstones (cholecystectomy) and performs over 400 gallbladder operations annually. Mr Malde is a member of the multi-disciplinary team (MDT) for liver, pancreas and gallbladder cancers in Leicester. He also carries out major laparoscopic and open liver and pancreas surgery, predominantly for cancer. He has carried out over 10,000 gallbladder operations and over 500 liver and pancreas cancer operations.

Other interests include management of benign conditions such as liver and pancreatic cysts, in addition to pancreatitis (and its complications).He specialises in carrying out microwave ablation (destroying tumour cells using heat from microwaves) of liver tumours to help make previously inoperable disease operable and in patients with widespread neuroendocrine tumours, to improve prognosis and survival.

Furthermore, he specialises in diagnostic and therapeutic endoscopic procedures such as endoscopic ultrasound scans (EUS). He has worked with centres across Europe to help pioneer Robotic HPB Surgery in Leicester.

Mr Malde’s work has been published in peer reviewed journals on various topics including gallbladder surgery, laparoscopic bile duct exploration, acute pancreatitis, colorectal liver metastases, pancreatic cancer surgery in the elderly and pancreatoduodenal trauma. He has presented at over a hundred national and international meetings.

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Mr Christopher Young is a highly regarded cardiothoracic surgeon who specialises in artificial heart valve surgery, cardiac surgery, coronary artery surgery and heart bypass surgery.

He graduated from Sheffield University Medical School in 1980 and completed his cardiothoracic training at various esteemed hospitals in the UK, including St Bartholomew's Hospital, St Thomas Hospital, Great Ormond Street Hospital for Sick Children, and Queen Elizabeth in Birmingham.

Additionally, Mr Young conducted two years of research at the Rayne Institute, St Thomas', as a BHF Junior Research Fellow, earning an MD for his work on myocardial protection. His specialised surgical expertise encompasses all facets of aortic valve surgery, aortic root replacement, and transcatheter aortic valve implantation (TAVI). Moreover, he played a pioneering role in introducing TAVI at London Bridge Hospital.

Beyond his proficiency in aortic valve surgery, Mr Young is an expert in addressing thoracic aortic aneurysm disease, including aortic dissection, aortic arch replacement, hybrid vascular procedures, and endovascular stenting. He heads the thoracic aortic vascular program at St Thomas' Hospital and oversees patients in aortic surveillance clinics for the long term.

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Dr Boon Lim is one of London's leading cardiologists and electrophysiologists. He specialises in heart rhythm disturbances, pacing and syncope at Imperial College and at his Harley Street clinic. He leads the established Imperial Syncope Diagnostic Service at Hammersmith Hospital and is frequently invited to national and international meetings to share his experience. He has a special interest in the mapping and ablation of atrial fibrillation (AF) and is highly-skilled at using modern 3-D mapping technologies.

Dr Lim has been awarded the prestigious Top Doctors Award in each of it's editions in 2017, 2018, and 2019-20. The Top Doctors Awards are peer-nominated by other medical specialists of the doctors that they would recommend to friends and family in times of medical need.

Dr Lim was awarded several distinguished prizes during his medical training at Cambridge University where he obtained a double First Class Honours Degree. He has continued his passion for education and research serving as an Honorary Senior Lecturer at Imperial College where he supervises several PhD students. He is very actively engaged in all aspects of research with a particular interest in developing the best techniques for treating atrial fibrillation. He is invited to speak both nationally and internationally to discuss his findings and to teach other physicians about the best techniques for complex mapping and ablation of atrial fibrillation and other complex arrhythmias.

He leads a very active syncope research team based at the Imperial Syncope Diagnostic Unit and is looking to improve healthcare delivery for patients through use of effective online education to help improve the quality of life for patients across the UK. 

Dr Lim is the author of the Penguin Life Experts book 'Keeping Your Heart Healthy' published in September 2021.

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Dr Sathish Harinarayanan is a distinguished consultant clinical oncologist based in the south coast of England providing expertise services for patients with bowel cancers, head & neck cancers, non-melanomatous skin cancers arising in the head & neck area, and complex thyroid cancers requiring radiotherapy.

His areas of expertise also include the MRL-SABR treatment for oligometastatic cancer, a complex and modern radiotherapy technique which delivers high-dose radiotherapy more precisely to cancer with limited spread to other parts of the body - which is otherwise not possible with conventional CT guided radiotherapy machines. Dr Harinarayanan is also accredited to provide Proton radiotherapy treatments.

Dr Harinarayanan is dedicated to providing the highest standard of care in clinical oncology. After graduating with a medical degree and doing various medical rotations across renowned London and West Midlands hospitals, he undertook higher specialist oncology training around Wessex hospitals and London Hospitals before taking up his consultant post at University Hospital of Southampton.

With a demonstrated commitment to excellence, he undertook and completed a prestigious proton therapy clinical education programme at the University of Pennsylvania and the MRL-SABR accreditation from GCUK and PGC, from the Institute of Cancer Research, London.

Beyond clinical practice, Dr Harinarayanan holds membership with the British Association of Head & Neck Oncology, served as co-chair of the Wessex Head and Neck Cancer alliance group, is member of the panel for the Wessex clinical oncology trainees, and is the elected governor for medical and dental staffing for Southampton attending the trust board meetings with executive and non-executive members of the trust.

Dr Harinarayanan actively participates in research, being the principal investigator for the country’s leading trials like PATHOS, APHRODITE for organ preserving strategies with radiotherapy for rectal cancer patients who wish to avoid permanent stoma bags. He has also acted at a co-investigator capacity for other leading UK clinical trials in Wessex like CHECKMATE 642, LiTEFORM, KEYNOTE 412, INNOVATE and ToRPEDO and recruited several patients so far.

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Mr Moataz El-Husseiny is a consultant orthopaedic surgeon based in London, Windsor, and Ascot who specialises in hip replacement, knee replacement, hip arthroscopy, knee arthroscopy, anterior cruciate ligament tears and sports injuries alongside revision hip replacements and revision knee replacements. He privately practises in Harley Street Specialist Hospital, Princess Margaret Hospital, and Spire Thames Valley Hospital. His NHS base is Frimley Health NHS Foundation Trust. 

Mr El-Husseiny, who is highly recommended by his patients, has an esteemed educational history. He has a Bachelor of Medicine and Surgery degree from Cairo University, a post-graduate diploma in Sports & Exercise Medicine and an MD (Res) in Biomedical/Medical Engineering from University College London (UCL). 

Mr El-Husseiny then went on to do his higher surgical training in trauma and orthopaedics on the North East Thames London Deanery Rotation. He gained further experience at leading UK hospitals including The Royal London Hospital, Great Ormond Street Hospital, University College London Hospitals, and The Royal National Orthopaedic Hospital. He undertook a further higher sub-speciality fellowship in lower limb arthroplasty and revision replacements for a year in Vancouver, Canada.

Alongside Mr El-Husseiny's impressive career, training and studies, he is well-respected for his research. His work has been published in various peer-reviewed journals and he has presented his findings both nationally and internationally. He is a fellow of The Royal College of Surgeons of Great Britain and Ireland (FRCS Tr and Orth) and a member of the Faculty of Sports and Exercise Medicine (MFSEM).

Mr El-Husseiny is also a noted name in teaching; he is an Advanced Trauma Life Support (ATLS) instructor and has been an examiner for various FRCS (Tr and Orth) preparation courses. He also runs a national FRCS (Tr & Orth) program for senior surgeons sitting the fellowship exit exam, to help them pass and become fellows of the Royal College of Surgeons.

He leads on professional development, too, as the current arthroplasty lead at Heatherwood and Wexham Hospitals (part of Frimley Health NHS Foundation Trust).  

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Dr Zachary Whinnett is a highly established consultant cardiologist based in London, renowned for his exceptional expertise in a broad spectrum of cardiac disciplines. His remarkable skills encompass the management of atrial fibrillation, pacemaker and defibrillator implantation, electrophysiology studies, cardiac (catheter) ablation, arrhythmia and cardiomyopathy.

Dr Whinnett's journey in medicine commenced at the University of Nottingham, where he earned his BM.BS degree, followed by a PhD from Imperial College London. His formative years as a junior doctor on the prestigious Barts and the London Medical Rotation set the foundation for his illustrious career.

Dr Whinnett has cultivated profound sub-specialties within the realm of cardiology, particularly in the areas of supraventricular tachycardia (SVT), cardiac MRI, cardiac (catheter) ablation and ventricular fibrillation. His contributions extend beyond clinical practice, as he is an avid educator, actively supervising Ph.D. students and imparting advanced techniques in pacemaker implantation to fellow cardiologists.

Dr Whinnett is a prolific researcher, currently leading a pioneering research programme at Imperial College London, focused on advancing treatments for heart rhythm disorders, with a primary focus on cardiac resynchronisation therapy. His extensive publication history attests to his commitment to advancing the field of cardiology.

His influence extends to significant roles within public organizations, notably the European Heart Rhythm Association and the Heart Rhythm Society. These positions underscore his dedication to enhancing the knowledge and practice of cardiology on a global scale.

In the dynamic landscape of cardiology, Dr Zachary Whinnett's contributions are indispensable, shaping the future of cardiac care through clinical excellence, cutting-edge research, and mentorship. His presence enriches the field and his contributions continue to resonate as he leads the charge in pushing the boundaries of medical science and patient care.

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Mr Andrew Smith is an expert consultant general surgeon in Leeds who specialises in treating pancreatic cancer, pancreatitis, gallbladder diseases and performing laparoscopic surgery for abdominal wall hernias, gallstones and hiatus hernias (reflux disease).

Mr Smith qualified from St Mary's in 1991 and joined as a Fellow of the Royal College of Surgeons in 1995. His postgraduate training took place in Leicester and Nottingham and then he went on to complete his laparoscopic and advanced HPB training at the Cleveland Clinic Foundation in the United States.

He has a vast amount of experience in his areas of expertise, performing over 80 major pancreas resections every year. He is also the Surgical Lead and Vice-Chairman for pancreatic disease within the Yorkshire Cancer Network and runs a research programme in benign and malignant pancreatic disease and medical education.

Mr Smith currently practices as an NHS consultant and privately in Leeds at the Spire Hospital and the Nuffield Health Hospital. As well as this, he also finds time to offer courses to GPs, which look at how to effectively manage gallstones, what to do with abnormal LFTs and how to treat acute and chronic pancreatitis and pancreatic cancer.

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Dr Federico Foschi is a top consultant endodontist based in Richmond and London. Specialising in root canal therapy and endodontic treatment, he is well-versed in all aspects of oral health and is registered as an endodontic specialist with the GDC as well as being a member of the British Endodontic Society.

Dr Foschi graduated from the University of Bologna with honours and went on to complete postgraduate endodontic training and a PhD in Endodontic Microbiology with a collaboration as a visiting student at the Department of Cytokine Biology of the Forsyth Institute in Boston, USA. He has enjoyed an impressive career as both a practising endodontist and a teacher, including his current position as chair of Endodontology and head of the Endodontic unit at the Eastman Dental Institute.

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