Medical specialists – Top Doctors UK
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Professor Francesco Rubino is a leading, internationally-renowned bariatric surgeon and a pioneer in the field of metabolic weight loss treatment and surgery, based in London.

Originally, Professor Rubino trained in Rome, Italy, at the Catholic University Hospital doing his residence in general surgery and receiving his MD. His surgery training was furthered during his Fellowship in laproscopic and minimally invasive surgery at The European Institute of Telesurgery in Strasbourg, France, Mount Sinai Medical Center in New York, and Cleveland Clinic in Cleveland, Ohio. Naturally, Professor Rubino became Chief of Gastroinestinal Metabolic Surgery and Director of the Diabetes Surgery Centre at Weill Cornell Medical College. At the same time, he was an attending surgeon at New York Presbytarian Hospital in New York. Not too long after in 2013, he was appointed to King's College Hospital as a Professor of Metabolic Surgery; it was the first of its kind, making him an international ground-breaker in the field.

Since then, he has continued to lead his field with novel procedures and advancing the concept of bariatric surgery. Professor Rubino has transformed bariatrics from simply weight-loss therapy to a surgical treatment for multiple metabolic conditions. In particular, he did a study in 2006 that resulted in positive results for type II diabetes. Pioneering the world of bariatrics, Professor Rubino has gone around the world attending various conferences, holding posts a memberships, publishing more than 100 peer-reviewed scientific journals, receiving innumerable prizes, and even organising his own Diabetes Surgery Summit which was supported internationally. Without a doubt, he has become a reference in his field.

Representing the impact of his expertise, one of Professor Rubino's patients, Jenni Murray, authored a memoir, Fat Cow, Fat Chance, about her journey through weight loss. Murray struggled throughout her life with the idea of weight, obesity, and weight loss. Once she found Professor Rubino, her life was forever changed and, more importantly, saved.

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Dr Benjamin Wakerley is a leading neurologist and specialises in diagnosing and treating all kinds of headaches, as well as other general neurological disorders. He is the clinical lead for headache at the Queen Elizabeth Hospital in Birmingham, where he runs the complex headache clinic. Dr Wakerley sees private patients face-to-face at the Winfield Hospital in Gloucester or by videocall.
 
Dr Wakerley offers extensive diagnostic services and treatment options for all types of headache. He is particularly interested in the treatment of patients with migraine, cluster headache, neck-related headache and can advise on the latest treatment options. For migraine, these include anti-CGRP antibody injection therapy (Aimovig, Ajovy, Emgality) and oral CGRP antiagonists (Rimegepant and Atogepant). He is also very experienced in the administration of botulinum toxin injections (Botox) and greater occipital nerve blocks.
 
Dr Wakerley qualified in medicine from Imperial College School of Medicine, London, and completed training in neurology in both London and Oxford. He also spent two years in Singapore at the National University Hospital as part of his neurology registrar training. He has a PhD in molecular immunology and is a Fellow of the Royal College of Physicians. He is actively involved in research, having published a number of papers, and is an honorary clinical associate professor at the University of Birmingham.
 

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Mr Vimoshan Arumuham is a leading consultant urologist and urological surgeon based in central London and Watford, who specialises in kidney stones, endourology, urinary tract symptoms alongside urinary tract infections, penis scrotal conditions and bladder cancer. His further speciality is prostate cancer. He privately practises at The Harley Street Clinic - The Prostate Centre (Part of HCA Healthcare), University College Hospital for UCLH Private Healthcare and Spire Bushey Hospital. His NHS bases are West Hertfordshire Hospitals NHS Trust and University College London Hospitals NHS Trust.

Mr Arumuham is highly-sought after due to his expertise in the diagnosis and minimally-invasive managment of general urological diseases. He works at the internationally-renowned Endourology and Stone Unit at UCLH and sees patients from around the UK regarding urinary tract stone treatment and prevention.

He has numerous academic awards including a ​​​BMBS in Medicine and ​​​​BMedSci in Biomedical Science from the University of Nottingham. alongside healthcare management and leadership qualifications from Manchester Business School, the Chartered Management Institute and the NHS Leadership Academy, where he obtained a Masters in Healthcare Leadership. 

Mr Arumuham's specialist training in urology took place on the prestigious North Central London Rotation and he was awarded the Markovitz Prize on completion of his course at the Institute of Urology at UCLH. 

Mr Arumuham, who is committed to clear communication and empathy regarding patient care, has had his research published in various peer-reviewed journals. He is an active member of various professional organisations which include the Royal College of Surgeons (RCS), Royal College of Pathologists (RCP) and British Association of Urological Surgeons (BAUS).  This is where he was awarded the Urology Foundation Scholarship and has also undertaken two international urological fellowships in Shanghai, China, and Colombo, Sri Lanka. He is also the Medical Examiner to HM Coroner of Hertfordshire.

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Mr Naim Fakih Gomez is a respected surgeon based in London at The Chelsea Wing – Adults and Paediatrics at the Chelsea and Westminster Hospital. He specialises in weight loss (Bariatric) and upper gastrointestinal (GI) surgeries, as well as other general surgery conditions such as gallstones and hernias.
 
With his expertise, he focuses on various aspects of bariatric surgery, including revisional surgery for failed operations, managing complications after bariatric procedures, performing laparoscopic hernia operations, and gallbladder surgery.
 
His journey in the medical field began at the University of Navarra in Spain, where he pursued his primary degree in medicine and surgery. Following that, he embarked on a rigorous surgical training programme at the renowned "12 de Octubre" University Hospital (Hospital Universitario 12 de octubre) in Madrid.

In 2014 he made his way to London and had the privilege of joining the Imperial College Obesity Centre. During his time there, he underwent an intensive fellowship in bariatric, metabolic, and upper GI surgery. The experience he gained during this fellowship was invaluable, allowing him to refine his techniques and expand his knowledge in the field.

In 2017 he was appointed as a consultant at UCLH (University College London Hospitals), where he performed over 300 bariatric procedures. He built upon his passion for upper GI and bariatric surgery by joining the Upper GI & Bariatric Surgery team at Chelsea & Westminster Hospital in 2020, where he continues to provide comprehensive care to patients, employing the latest surgical techniques and staying updated with advancements in the field.

His commitment to his patients and the field of surgery drives him to continually expand his knowledge and skills. He is dedicated to providing personalised care and ensuring the best possible outcome for each individual that he treats.

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Mr Edward Calleja is a leading consultant in urology and robotic pelvic surgery based in East Sussex at Sussex Premier Health, sub-specialising in pelvic uro-oncology. He has extensive experience with numeorus different urological conditions and procedures, with his areas of expertise including robotic prostatectomy, urinary tract infection, prostate cancer, enlarged prostate, bladder cancer, erectile dysfunction and prostatitis.  

Mr Calleja current practises privately at both Sussex Premier Health Eastbourne and Sussex Premier Health Hastings, where he has a special interest in robotic pelvis surgery. He also has extensive experience working in the NHS, where he currently holds the position of consultant urologist at East Sussex Healthcare NHS Trust.

Mr Calleja first qualified with an MD degree from the University of Malta in 2004. Since arriving in the UK, he has worked at some of the country's most prestigious hospitals. He has been awarded both an MRCS and FRCS from the Royal College of Surgeons. He is highly experienced in performing robotic surgery to treat various pelvic issues. He has been named a Prostate Cancer Clinical Champion by Prostate Cancer UK in recognition of his contributions to the treatment of the disease. He has developed a number of services for his urological cancer patients, such as active sureillance, preoperative optimisation and survivorship. 

In additional to his clinical work, Mr Calleja is also renowned for his contributions to medical research, with numerous articles published in peer-reviewed scientific journals.

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Dr Deepak Joshi is a leading consultant hepatologist practising at private clinics in London. Dr Joshi specialises in liver disease, liver transplant, pancreatic diseases, bile duct diseases, and cirrhosis amongst others. At present, Dr Joshi is practising at the Guthrie Clinic, a part of King's College Hospital, the Institute of Liver Studies, and the London Liver Centre.

After qualifying in medicine from King's College in 2001, he went on to train in hepatology at the Institute of Liver Studies for five years, where he carried out a PhD researching into predictors of fibrosis in patients following a liver transplant. He further honed his skills in adult and paediatric endoscopy and ERCP whilst training at the reputable University College London Hospitals.

An active researcher in the hepatology field, he has published extensively in peer-reviewed papers, contributed to book chapters, and co-authored "Hepatology at a Glance". His main clinical interests include biliary disease, as well as treatment and management of all kinds of conditions to do with the liver or pancreas.

Dr Joshi educates future hepatologists as a clinical lecturer at King's College London outside of his practising and research hours. In addition, he sits on the expert panel of the PSC Support, a leading charity for primary sclerosing cholangitis. Additionally, he is a Liver Committee member for the British Society of Gastroenterology, which he has been a participant of since 2016.

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Dr Pushpakaran Munuswamy is a leading consultant gastroenterologist with practice in Brentwood and Chelmsford who specialises in the diagnosis and treatment of gastrointestinal disorders using endoscopic procedures, for conditions including dyspepsia, bowel cancer, inflammatory bowel disease, irritable bowel syndrome disease and small intestinal bacterial overgrowth. An accredited bowel cancer screening practitioner, Dr Munuswamy is also an expert in colonoscopy procedures, having performed over 5,000 colonoscopies with an adenomatous polyp detection rate double the national target.

Included in his main areas of expertise are also gastroscopy examinations, having performed more than 5,000 gastroscopies, as well as therapeutic procedures for the treatment of gastrointestinal bleeding, percutaneous endoscopic gastrostomy, foreign body removal and variceal banding.

Dr Munuswamy originally qualified from Tamil Nadu Dr MGR Med University in India in 1997. He then relocated to the UK, where he undertook his gastroenterology and liver disease training in London at King’s College Hospital, on the South East rotation, acquiring in-depth expertise in complex, acute and chronic disorders of the digestive system. Dr Munuswamy later obtained a post graduate diploma in digital health leadership, NHS digital academy.

Dr Munuswamy is a fellow of the Royal College of Physicians, London. He is a member of British Society of Gastroenterology and the clinical lead for artificial intelligence in gastroenterology, BSG task group.

Beyond his clinical practice, Dr Munuswamy is passionate about innovation, and went on to develop a highly commended modern design of a naso-gastric tube for feeding. He also maintains an interest in research that improves the management of gastrointestinal disorders and thus, collaborates at present in several national trials, including the CONSTRUCT study for acute colitis management. He has presented in national scientific meetings, NHS digital meetings and has published in peer-reviewed journals.

Dr Munuswamy has held several management roles and as chief clinical information officer introduced several digital innovations including electronic observations, e-prescribing and electronic records. He was clinical director for gastroenterology and currently is a department lead for gastroenterology.

Awards for his work include the BSG highly commended prize for service innovation and a finalist in HSJ awards.

Patient safety is integral to Dr Munuswamy’s practice. With a gentle and comprehensive approach to care, Dr Munuswamy involves and works together with his patients in the decision-making process of their treatment. Alongside his NHS work at Basildon and Thurrock University Hospitals, Dr Munuswamy currently sees private patients at Nuffield Health Brentwood Hospital, Springfield Hospital and Spire Hartswood Hospital.

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Dr Dan Ornadel is a highly respected London-based consultant physician in respiratory and general medicine. He possesses a special interest in a whole host of respiratory medical conditions, such as breathlessness, asthma, chest pain, cough and sleep apnoea. Dr Ornadel formed a London-based clinic in 2006 in conjunction with other top medical experts to study and treat severe snoring and sleep apnoea.

Dr Ornadel is an expert in lung cancer and was awarded a Jules Thorne Fellowship to conduct research into small cell lung cancer and to study targeting treatment in lung cancer patients with monoclonal antibodies. Dr Ornadel was subsequently awarded with his MD degree at London University in 1995 for this impressive and thorough research. 

Dr Ornadel's medical cirriculum is quite notable, as his past and present demonstrates. He was appointed as consultant physician in respiratory, general & intensive care medicine at Central Middlesex Hospital in 1996. He has been lead lung cancer physician at Northwick Park Hospital since 2000 and is currently Honorary Senior Clinical Lecturer at Imperial College School of Medicine, London. Dr Ornadel successfully developed and spearheaded the very first respiratory high dependancy unit at Northwick Park, and has held the position as lead respiratory physician at the hospital since 2008.

At the cutting edge of his field, Dr Ornadel has worked with elite athletes, most notably at the 2012 Olympics, where he was lead respiratory physician for the medical centre at the Olympic Village. An expert in bronchoscopy and endobronchial ultrasound (EBUS), Dr Ornadel offers top quality treatment for an entire range of respiratory conditions and is highly recommended by patients and peers alike.

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Dr Gary Davies is a leading consultant respiratory physician based in central London. He specialises in pleural effusion, obstructive sleep apnoea and fit to fly assessments, alongside aviation medicine, asthma and chronic cough. He privately practices at the Chelsea & Westminster Hospital Private Department, his NHS base is the Chelsea and Westminster Hospital NHS Foundation Trust, where he is the Hospital Medical Director. 

Dr Davies is highly qualified with an MB BS from the University of London, an MD in Aviation Medicine from Imperial College London and an FRCP from the Royal College of Physicians. He investigated the pressure breathing system of the Typhoon (Eurofighter) at the National Heart and Lung Institute and RAF Centre of Aviation Medicine. Dr Davies also undertook a senior fellowship in Respiratory and Intensive Care at The Alfred Hospital in Melbourne, Australia. 

Furthermore he runs a specialist aviation medicine respiratory service, a pleural service and general respiratory clinic at Chelsea and Westminster Hospital. 

Previously, Dr Davies spent over 20 years in the RAF where he was involved in multiple overseas deployments, numerous aeromedical evacuations as well as leading specialist aircrew respiratory and medical clinics. During this time he was the RAF Consultant Advisor in Medicine.
 
Dr Davies' work has been published in various peer-reviewed journals and he's a member of several professional organisations. These include the Society of Acute Medicine, the British Thoracic Society and the American Thoracic Society. He's also a fellow of the Royal College of Physicians (Edinburgh).  

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Dr Kathrin Hammer is a highly revered consultant radiologist with expertise in MRI scans, ultrasound scans, spinal MRI scans and injections, imaging of sports injuries, CT scans, and musculoskeletal ultrasound scans. She currently practises at Alliance Medical Cardiff.

Dr Hammer successfully completed bachelor of science degree in chemistry at the University of Bonn in Germany in 1990, before going on to obtain an MBCHB from the same university a year later. She then notably achieved an MD in 1992, again from the University of Bonn. 

Dr Hammer, who also specialises in orthopaedic radiology, is a member of the British Society of Skeletal Radiologists, the British Sarcoma Group, the Royal College of Radiologists, and the South Wales Radiology Group, She has, to date, published a high volume of peer-reviewed articles in established medical journals and publications.

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