Medical specialists – Top Doctors UK
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Professional statement

Mr Alastair Lewis is a leading minimally invasive venous surgeon who specialises exclusively in the treatment of varicose veins. He works in full time private practice mainly based in Belfast and Dublin as well as attending Ballykelly and Hillsborough. He is an expert in the non-surgical management of varicose veins and thread veins with EVLT, radiofrequency ablation of veins, foam sclerotherapy and microsclerotherapy. He is a fully trained and accredited in venous ultrasound. He practises privately at Kingsbridge Private Hospital Belfast, the Fitzwilliam Clinic and Hillsborough Private Clinic as well as Kingsbridge Private Hospital North West, and The Vein Clinic at The Beacon Hospital, Dublin.

Mr Lewis is one of a small number of full-time varicose vein practitioners in the UK and Ireland and the only one working in Northern Ireland. He was appointed as a consultant vascular surgeon to the Southern Health and Social Care Trust in 2007 and played a central role establishing the regional varicose vein service in Northern Ireland.

He enjoys a national reputation as an authority in the management of all aspects of venous disease has been invited to speak on the expert management of varicose veins at the Royal Society of Medicine’s Venous Forum, The British Association of Sclerotherapists and Vascular Society of Great Britain and Ireland meetings on a regular basis in recent years. He has been a member of the board of The British Association of Sclerotherapists since 2021. He holds the prestigious Diploma in Venous Disease from the European Society of Phlebology.

He offers keyhole treatments for thread veins, varicose veins and complications of chronic venous insufficiency. Treatments offered include endogenous laser ablation, foam sclerotherapy, microsclerotherapy and non-injectable treatment of facial veins. He has significant experience in the treatment of veins on the face, chest, hands, feet and in the management of pelvic venous disorders.

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Professional statement

Mr Philip Lim is a leading consultant plastic surgeon in York and Manchester who specialises in both plastic and reconstructive surgery. His areas of expertise include abdominal and breast reconstruction surgery, skin cancer surgery, body contouring (Liposuction), blepharoplasty and wound management.

Mr Lim qualified in medicine in 1995 from the University of Leeds and went on to specialise in plastic surgery in 2013. He underwent a fellowship in microsurgical reconstruction at the Nottingham Breast Institute and Nottingham University Hospital.

He is a member of the European Academy of Facial Plastic Surgery and of the British Association of Head and Neck Oncologists. Mr Lim is a fellow of the Royal College of Surgeons England. He is an honorary senior lecturer at Hull York Medical School.

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Professional statement

Mr Ciaran Scott Hill is a highly accomplished, consultant neurosurgeon and honorary associate professor with over 15 year’s of experience practising in London. He treats a wide range of neurosurgical conditions and possesses expertise in both benign and malignant (cancerous) brain tumours, brain metastasis, cavernoma and facial pain, alongside gamma knife, radiosurgery, skull base tumours and degenerative and painful spinal conditions.

Mr Hill was awarded an MBBS from Barts and The Royal London Medical School at The University of London in 2007, graduating top of his year group with a double distinction. Following this, he undertook neurosurgical training in London with experience in the full spectrum of cranial and spinal neurosurgery. He also obtained subspeciality training with an academic clinical lectureship in neurosurgical oncology at Queen Square, London.

Mr Hill successfully completed a PhD in clinical neuroscience, from the prestigious University of Cambridge.

He is passionate about advancing patient care and developing new treatments, currently holding the role of honorary associate professor at the Cancer Institute of University College London. In his research, he aims to gain insights into fundamental molecular mechanisms of disease and implement these into patient care. He also strives to support other clinicians and to deliver a world-class service of care to both his patients and students, working to improve understanding and treatment of brain tumours and other diseases of the brain and spine.

Mr Hill has an extensive research output with multiple high-impact peer reviewed publications, abstracts and books. He leads several clinical trials to improve outcomes for patients. He is a fellow of The Royal College of Surgeons and the Higher Education Authority.

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Professional statement

Dr Jude Oben is a leading consultant hepatologist based in London who holds additional consultant appointments in gastroenterology. His areas of hepatology expertise include autoimmune liver disease, primary biliary cholangitis, primary sclerosis cholangitis, hepatocellular cancer, obesity, non-alcoholic fatty liver disease (NAFLD), abnormal liver function test and endoscopy and metabolic endoscopy (Intra-gastric balloon) for weight loss.

Dr Oben has a PhD in Pharmacology from University College London. He studied Medicine at Oxford with a period at Stanford University, Palo Alto, USA, as a research fellow in Immunology. After Oxford, his initial Postgraduate Medical training was at the Hammersmith Hospital, Imperial College London, followed by training in Ophthalmology (Eye Surgery) which he left for Hepatology (Liver Medicine). During his specialist medical registrar training, he re-oriented his research career with two years as a postdoctoral fellow at John Hopkins University, USA.

At Johns Hopkins, Dr Oben combined his previous interest in neuroscience with liver medicine, with a particular focus on obesity-related liver disease (NAFLD). After his time at John Hopkins, he was awarded a Wellcome Trust Fellowship in London to start independent research at University College London. He is currently an Associate Professor in Hepatology at University College London, Institute for Liver and Digestive Health, Royal Free Hospital, London.

Dr Oben is a co-founder and Trustee of the Obesity Action launched at the House of Lords. The primary aim of Obesity Action is to raise political and public awareness of obesity and it’s health consequences. He is an invited member of the All-Party Parliamentary Group on Obesity.

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Professional statement

Dr Farooq Maniyar is an internationally acclaimed consultant neurologist who has extensive experience in dealing with all types of neurological problems. He specialises in treating headaches, migraines, cluster headaches and neck pain and offering pain treatment such as Botox and nerve blocks.

Dr Maniyar graduated from the Dr DY Patil Medical College, India in 1999 and then went on to obtain his degree in medicine from the Shivaji University, India in 2002. After moving to the UK and receiving his MRCP from the Royal College of Physicians, he was then granted a clinical research fellowship from the University of California San Francisco in 2012.

In addition to practising privately as a consultant neurologist at the Cleveland Clinic, Dr Maniyar is a reviewer for several international journals and is actively involved in teaching, especially GPs on topics regularly witnessed in general practice such as headaches and epilepsy. He won the Harold G. Wolff Lecture Award consecutively in 2013 and 2014, which is one of the most prestigious awards in headache research granted annually by the American Headache Society.

Dr Maniyar regularly publishes in renowned international journals, enjoys lecturing both in the UK and abroad and has been interviewed by the BBC radio and appeared on various TV programmes.

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Miss Tanaya Sarkhel is a consultant orthopaedic surgeon based at the Surrey Orthopaedic Clinic in Chertsey. After qualifying from the Charing Cross and Westminster Medical School, Miss Sarkhel went on to complete her orthopaedic training at St George's Hospital. She also completed training in two sub-specialty fellowships at the Pulvertaft Hand Centre, Derby and the Epsom Shoulder Unit, and is a full member of the British Society for Surgery of the Hand (BSSH).

Following her sub-specialty training, Miss Sarkhel presented her research at the British Elbow and Shoulder Society for which she gained an award. Miss Sarkhel has been providing specialist orthopaedic and musculoskeletal care as a consultant since 2008 and has expertise in hand and wrist surgery, treating conditions such as carpal tunnel syndrome and Dupuytren's contracture. 

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Mr Jonathan R L Wild is a highly educated and skilled surgeon, based in Manchester. He specialises in in colorectal and peritoneal surgery, alongside a particular focus on colonoscopy and colon cancer. He currently practises at a The Christie Private Care, a private clinic which is located in the Chrisite NHS Foundation Trust.

He began his medical studies at The University of Sheffield, graduating in 2004. He has a wealth of knowledge, completing several degrees. His most recent academic venture was graduating with a pHD in sciences from The University of Sheffield. In 2014, he was the first person to be awarded membership to the Faculty of Surgical Trainers of the Royal College of Surgeons of Edinburgh.

Following completion of his undergraudate degree at The University of Sheffield, Mr Wild commenced foundation and higher training at the Yorkshire School of Surgery. He also completed fellowship training in Leeds, Dublin and Australia, concentrating on areas such as peritoneal surface malignancy and advanced laparoscopic colorectal surgery. He was awarded the 2018 ACPGBI/CSSANZ Travelling Fellowship to Australasia, which permitted him to visit colorectal units in Sydney, Melbourne and Christchurch.

Mr Wild is also a member of numerous medical organisations, including the Royal College of Surgeons of England and the European Society of Surgical Oncology. Furthermore, he is a JAG approved endoscopy trainer.

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Mr Shashank Gurjar is a consultant general and colorectal surgeon specialising in laparoscopic (keyhole) surgery for bowel cancer (colon and rectum), IBD (Crohn's disease and ulcerative colitis) and surgical treatment of diverticular disease.

He offers specialist expertise in laparoscopic groin (inguinal, femoral) and all forms of abdominal wall hernia surgery. He can treat common coloproctology problems including haemorrhoid surgery (THD and Rafaelo), fistula surgery, pilonidal sinus, and anal fissures. He is an accredited endoscopist with expertise in colonoscopy and polypectomy.

Mr Gurjar qualified as a doctor from Imperial College London in 1997, and then undertook basic surgical training at King's College, London. He completed specialist training in colorectal surgery in the Southeast Thames region and gained the FRCS degree in 2009. He has completed a senior post-CCT fellowship in pelvic floor surgery at John Radcliffe Hospital, Oxford which gave him expert training in the management of rectal prolapse and evacuatory disorders. He has an active research interest in clinical surgery and pelvic floor dysfunction and has published various papers in peer-reviewed journals.

He is an MRCS examiner for the Royal College of Surgeons and actively trains young surgeons in laparoscopic keyhole surgery, as well as teaching medical students. Mr Gurjar ensures that all his patients have a high quality, evidence-based approach to their care. He holds a substantive NHS consultant post at Bedfordshire Hospitals NHS Trust, and practises at various independent hospitals in North London and Hertfordshire.

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Dr Pierluigi Costanzo is an experienced consultant cardiologist practicing in Cambridge at Royal Papworth Hospital, leading heart and lung hospital in the UK, where he also serves as the clinical lead for coronary intervention. He also practices at the Nuffield Health Cambridge Hospital. Dr Costanzo has vast experience in the field of general cardiology and interventional & structural cardiology.

He has a large experience in dealing with common heart-related issues (angina or chest tightness, shortness of breath, palpitations, dizzy spells, blackouts). He also undertakes a broad range of key-hole heart interventions, including coronary (heart arteries) angioplasty and stent to relieve angina and provide improved blood flow to the heart muscle. He is a leading cardiologist also in key-hole treatments of heart valve problems (particularly for the aortic valve, for which he performs “TAVI” procedures to replace damaged aortic valves). 

Before starting his consultant post at Royal Papworth Hospital, he spent one year at Toronto General Hospital (Canada) to train in complex coronary intervention, having been awarded the competitive British Cardiovascular Intervention Society training grant. Following that, he was appointed as a structural (heart valves and structure) interventional fellow for one year at St Michael’s Hospital (Toronto, Canada). During this time he trained in  TAVI and other structural procedures, having also the opportunity to participate in several pioneering heart valve procedures.

He graduated with first-class honour and academic distinction from medical school in Italy and then moved to England where he undertook training in general internal medicine, cardiology, and interventional cardiology East Yorkshire, mainly working at Castle Hill Hospital  (Cottingham).  During this time he also obtained a Master of Science (MSc) and Doctor of Medicine (MD)
research degrees from the University of York, focusing on prevention of cardiovascular events, 
particularly in diabetic patients. He published several high-impact research articles and won multiple investigator awards at the European Society of Cardiology and American College of Cardiology conferences.

Alongside his clinical work, he holds senior positions being the audit lead for all the key-hole  (percutaneous) interventions performed at Royal Papworth Hospital. He also leads the regional teaching for the new generation of cardiologists undertaking training in angioplasty, stents, and valve interventions. He leads the research for the TAVI procedures held at Royal Papworth Hospital aimed at making this procedure as safe and effective as possible, sharing the results with the national and the international medical community. He holds an editorial position for Interventional Cardiology Review, which is a scientific journal keeping the community of specialist cardiologists up to date with the most state-of-the-art cardiac interventions.

Finally, he is a proud member of several national and international societies (i.e. British Cardiovascular Society, Canadian Cardiovascular Society, British Cardiovascular Interventional Society, European Society of Cardiology, and others).

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Mrs Kalpana Devalia is a leading London-based consultant bariatric surgeon, with more than 10 years of experience. Mrs Devalia practises at the Cleveland Clinic and Portland Place Outpatient Centre, both in central London. She has been a consultant surgeon at the Homerton University Hospital NHS Foundation Trust since 2011. Some of her areas of expertise include bariatric (weight loss) surgery,  treatment for gallstones, acid reflux and hernia procedures.

Mrs Devalia is also an expert on Semaglutide, a medication used for pharmalogical weight loss. This treatment may be more suitable for patients who are not keen on weight loss surgery, and who suffer from at least one weight related condition. This treatment may also be exceptionally offered to people with a BMI of 30.0 kg/mg² to 34.9 kg/m². This is a part of a specialist weight management service with multidisciplinary input. 

Mrs Devalia has a special clinical interest in surgery for severe obesity, gastrointestinal surgery and advanced laparoscopic surgery. She is one of the UK’s most trusted bariatric surgeons, having performed over 1000 laparoscopic procedures over the course of her career, such laparoscopic gastric bypass and sleeve gastrectomy.  

Mrs Devalia has received extensive training across the UK, India and Belgium. She graduated with an MBBS from the University of Mumbai in 1989, before going on to qualify with a FRCS (Edin) at the Royal College of Surgeons of Edinburgh and a FRCS (Glas) at the Royal College of Surgeons of Glasgow, both in 2000. Mrs Devalia then received her FRCS (Gen Surg) in 2011.

When Mrs Devalia is not treating patients, she carries out research into a wide range of bariatric treatments, and has published numerous articles in peer-reviewed journals. She is also a faculty member for various different medical training courses and international symposiums at Homerton University Hospital. She offers a free consultation to ensure patients know the best treatment options available.

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