Medical specialists – Top Doctors UK
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Professional statement

Dr Martin Wilson is an acclaimed consultant neurologist in Cheshire, who specialises in general adult neurology, multiple sclerosis, autoimmune disorders of the central nervous system, headache, neurological disorders and neurological treatments.

He is a consultant at The Walton Centre NHS Foundation Trust, a position he has held since 2005, as well as at Nuffield Health Chester, The Grosvenor Hospital, where he attends to private patients. 

After qualifying from the University of Nottingham, Dr Wilson undertook further training with the Royal College of Physicians, for which he was awarded membership status. In 2001 he completed his postgraduate research on new MRI scanning techniques for assessing and monitoring multiple sclerosis, resulting in the award of a doctorate of medicine, with distinction. 

In addition to his consultant roles, Dr Wilson's status amongst his peers is exemplified by the positions he holds in some of the most reputable organisations in his field. He is a core member of the National Neurosciences Advisory Group, a specialist clinical adviser for NHS England and the chief clinical information officer for Cheshire and Merseyside Health and Care Partnership. He is also the clinical director for neurology at The Walton Centre.

Throughout his career, Dr Wilson has maintained his passion for clinical research by participating in various phase 2 and 3 clinical trials, and publishing his findings in peer reviewed journals.

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Professor Nick Maynard is a leading consultant Upper GI surgeon based in Oxford, with more than twenty-five years of experience in his field.

He treats patients at The Manor Hospital, Nuffield Health Oxford. He specialises in the treatment of a wide range of Upper GI conditions, including oesophageal cancer, stomach cancer and gallstones. He has extensive experience conducting laparoscopic surgery to treat hiatal hernia, achalasia and reflux disease. Professor Maynard also has particular expertise in revision surgery, which is surgery done to correct or modify a previous surgery that did not have the desired outcome.

As one of the leading Upper GI surgeons in the country, Professor Maynard is particularly experienced in upper gastrointestinal laparoscopy and endoscopy procedures. He is also an expert in treating adults who have had treatment of trachea-oesophageal fistula (TOF) and oesophageal atresia as a neonate - rare birth defects causing the upper part of the oesophagus and the windpipe to be connected to each other.  

Professor Maynard has been Consultant Upper GI surgeon at Oxford University Hospitals NHS Foundation Trust since 1997. He has been the Director for Cancer Services for Oxford University Hospitals from 2017 to 2022, and Associate Professor of Surgery at Oxford University. 

Professor Maynard graduated from the University of Oxford with a BA in Physiological Sciences in 1983, before receiving his Bachelor of Medicine, Bachelor of Surgery from Guy´s Hospital Medical School in 1986. He then went on to receive his MS from the University of London in 1993, and his FRCS from the Royal College of Surgeons of England in 1997. He then trained in various hospitals in south east England, as well as a 15-month stint in Melbourne, Australia.

In 2020, he was awarded FRCS Ed (ad hominem) at the Royal College of Surgeons of Edinburgh in recognition of his contributions to upper GI surgery over the last twenty-five years. 

He serves as the president of AUGIS (Association of Upper GI surgeons of Great Britain and Ireland). He is also the Clinical Lead for the National Oesophago-Gastric Cancer Audit. When not treating patients, Professor Maynard conducts research on a wide range of Upper GI conditions.

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Mr Danilo Miskovic is an exceptionally skilled consultant general and colorectal surgeon based in London.  He is also one of the leading robotic colorectal surgeons in the UK and internationally.

Throughout his career, Mr Miskovic has developed leading expertise in the surgical management of colorectal cancer (bowel cancer), with a focus on advanced minimally-invasive surgery, such as laparoscopic (keyhole) surgery, transanal surgery and robotic surgery. His expertise in his field has led him to become a consultant at the renowned St Mark's Hospital, a specialist bowel hospital in Harrow, West London.

From as early as 2013, Mr Miskovic has been at the forefront of implementing robotic surgery for colorectal procedures. He is incredibly skilled in the use of the novel da Vinci Si and Xi system and performs more than 150 major robotic cancer operations each year. In these major operations, he teaches and trains other professionals from all over the world in the use of this exciting and highly sophisticated technology. He is also a member of the faculty of the European Academy of Robotic Colorectal Surgery (EARCS).

Mr Miskovic's surgical practice also involves other aspects of general and colorectal surgery, such as proctology. He offers a wide range of surgical procedures for the treatment of anal fistula, hernia, pilonidal disease, prolapse and haemorrhoids. 

Dr Miskovic completed his surgical training in Zurich, Switzerland, before relocating to the UK in 2007. After training as a registrar in Surrey and completing his PhD in London, he underwent extensive subspecialist training in minimally-invasive surgery as a fellow at the Queen Alexandra Hospital in Portsmouth. After training at some of the best colorectal units in the country, he was appointed as an Associate Professor and Consultant Surgeon at the University of Leeds and St James’ University Hospital in Leeds. He attends to the needs of patients in both the public and private health care sectors.

He also contributes to his field of work through surgical education and research. Dr Miskovic has a strong commitment to the development of surgical technology, education and quality in colorectal surgery.

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Mr Nimalan Arumainayagam is highly respected consultant urological surgeon in Woking, Chertsey, Windsor and west London. He is renowned for his expertise in prostate cancer diagnosis and benign prostate enlargement and also specialises in kidney stones, recurrent urinary tract infections, erectile dysfunction and haematuria (blood in the urine).

After qualifying in medicine from the University of Nottingham in 2000, Mr Arumainayagam underwent further training in London and Bristol. He was awarded a clinical research fellowship based at University College London Hospitals, where he formed part of a research group on minimally invasive treatment of prostate cancer. He additionally completed subspecialist training in stone surgery at Charing Cross Hospital and obtained an MD in multiparametric magnetic resonance imaging in the diagnosis of prostate cancer from University College London. He achieved the fellowship of the Royal College of Surgeons’ urology section in 2014 and was appointed as a consultant urological surgeon at Ashford and St. Peter’s Hospitals NHS Foundation Trust the following year. Offering expert care for a wide range of urological conditions, including innovative treatments for benign prostate enlargement, Mr Arumainayagam sees private patients at Nuffield Health Woking Hospital, Runnymede Hospital, GenesisCare Woking and the Syon Clinic.

Throughout his esteemed career, Mr Arumainayagam has held a number of senior positions and is currently clinical lead in the department of urology and lead cancer clinician within his NHS base. At the forefront of research in his field, he has also acted as principal investigator on a number of key clinical trials and his academic papers appear in peer reviewed journals. He is a regular speaker at important conferences of fellow urologists and has won awards throughout his career, including being the senior supervising author for the winning presentation of the Royal Society of Medicine’s Geoffrey Chisholm Communication Prize in 2018.

Additional to his clinical and research responsibilities, Mr Arumainayagam is an important figure in medical education in his role as foundation training programme director within his NHS base. He was awarded postgraduate certification in medical education from University College London in 2009 and a diploma in surgical education from Imperial College London, as well as an executive MBA with distinction from the University of Warwick in 2021. Mr Arumainayagam is also a member of the British Association of Urological Surgeons.

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Professor Gideon Lack is a highly experienced consultant in allergy and immunology who specialises in asthma in children, allergies, anaphylaxis, immunity and infection, food allergies, food intolerance, paediatric immunology, and paediatric allergies.

Professor Lack qualified in medicine from Oxford University and proceeded to train as a paediatrician for four years in New York and another four years in Denver, Colorado. He is a current professor and the present head of paediatric allergy at King's College, London.

Thus far in his medical career, Professor Lack has contributed greatly to research regarding severe childhood asthma, food allergies, the treatment and prevention of food allergies, eczema, and hay fever in children and adults. Notably, he is currently on the Steering Committee as a representative of the Leadership Centre for CoFAR to give insights on the best studies to pursue, trouble shoot, and evaluate the progress of studies. 

To add to this, Professor Lack has, impressively, established two of the nation’s paediatric allergy centres and is a co-founder of the Allergy Academy at King’s College London. He is also a director of the Centre of Excellence course for international students and a consultant to the Sean Parker Allergy Centre and Stanford University. He is on the editorial board of the Journal of Allergy and Clinical Immunology as well as the Journal of Allergy and Clinical Immunology in Practice. Profesor Lack is also the secretary to the Food Allergy Section of the World Allergy Organisation. In 2010, Professor Lack was awarded the William Frankland Excellence in Allergy Award by the British Society of Allergy and Clinical Immunology.

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Mr Richard Bowman is a revered consultant ophthalmic surgeon based in London with more than 30 years of experience. He provides care for both children and adults with neurological conditions affecting the eye and is also an expert in treating all forms of strabismus (squint) and performing squint surgery for complex cases. He has additional expertise in nystagmus, cerebral visual impairment (CVI), and cataracts in children. 

Mr Bowman studied medicine at Cambridge University and Guy's Hospital Medical School. He later trained in ophthalmology in Cambridge, Glasgow, Moorfields Eye Hospital, and Great Ormond Street Hospital (GOSH) where he has worked since 2010, after becoming a consultant in 2002. He currently is fellowship director of Child Health at GOSH. He also did an observership at the Mayo Clinic in Rochester, Minnesota. 

Mr Bowman is actively involved in research, having conducted studies on cerebral visual impairment (CVI) and paediatric cataracts, and his work has been widely published. He is a senior lecturer at London School of Hygiene and Tropical Medicine, and also an honorary senior lecturer at the Institute of Child Health, University College London. In addition to being an examiner for the International Council of Ophthalmology, he is a fellow and member of the paediatric sub-committee of the Royal College of Ophthalmologists.  

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Mr Nish Mehta is an extensively trained and skilled consultant ears, nose and throat (ENT) surgeon. He has a subspecialty interest in otology (the branch of medicine related to the ear) and auditory implants. He offers leading care for both adult and paediatric patients.

Among his areas of expertise are cochlear implants, hearing loss, cholesteatoma and ear infections. Patients regularly seek him out for his skill in implantation surgery, endoscopic ear surgery and local anaesthetic ear surgery.  In 2018, he achieved his Fellowship of the Royal Colleges of Surgeons (FRCS) qualification in otorhinolaryngology and head and neck surgery. 

Additionally, he contributes to his field through the education of future ENT specialists. He holds a joint appointment as an associate professor at the globally recognised University College London (UCL) ear institute, which is funded by the Deafness and Hearing Health Biomedical Research Centre. He also supervises PhD and MSc students in training at the UCL. What’s more, his proficiency and understanding of otology have led him to become chairman of the INTEGRATE (UK National ENT research trainee network) otology committee.

Mr Nish Mehta is also an avid researcher. His latest scientific medical research explores the use of artificial intelligence in hearing loss, with the goal to improve outcomes for cochlear implantation, sudden onset hearing loss and ototoxicity (drug-related hearing loss).

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Mr Ashish Rohatgi is a highly proficient, skilled and well-regarded consultant upper gastrointestinal laparoscopic and general surgeon based in London. His areas of expertise include oesophageal and gastric cancer surgery, gallstones, gastric reflux, and hernias. He currently practises at the University College London Hospital as well as the Whipps Cross Hospital.

Mr Rohatgi, who is also an expert when it comes to biliary disease, obtained a MBBS from the prestigious Maulana Azad Medical College in India in 1993. This landmark propelled the revered doctor to go on to then successfully undertake and complete a FRCS at the Royal College of Surgeons Edinburgh in 2005. 

Mr Rohatgi successfully completed both his specialist training and fellowship in upper gastrointestinal laparoscopic and general surgery in the South East Thames region where he notably worked in two major oesophagogastric cancer units. During his specialist training, Mr Rohatgi treated various oesophageal and gastric conditions, developing a particular interest in different types of resection for oesophagogastric cancer, for which he is renowned for in his field today. On top of his clinical commitments, Mr Rohatgi is also actively involved in research, with more than 25 publications and presentations to his name thus far in his esteemed medical career. 

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Dr Georgina Forbes is a highly respected specialist doctor in sexual and reproductive healthcare based in Cardiff. She specialises in testing and treatment for sexually transmitted infections (STIs), including genital wart diagnosis and treatment. She is also renowned for her expertise in contraception, including coil (IUD) and contraceptive implant fitting and removal. Dr Forbes also provides menopause care and treatment of recurrent vulvovaginal thrush.

Dr Forbes qualified in medicine from the University of Exeter in 2009 and then went on to undertake further training, including a diploma in genitourinary medicine. She has also completed a diploma with the Faculty of Sexual and Reproductive Healthcare and is a registered trainer (FRT). In addition, Dr Forbes has achieved letter of competences in intrauterine techniques and subdermal contraceptive implants (insertion and removal). She serves as a medical doctor with the Aneurin Bevan University Health Board. Dr Forbes sees private patients at the Oak Tree Clinic in Cardiff, a renowned centre for excellence in healthcare.

Dr Forbes is an SAS board representative and representative for Wales in the British Association for Sexual Health and HIV (BASHH). Her academic publications appear in peer-reviewed journals.

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Dr Dulmini Kariyawasam is a highly esteemed diabetes, endocrinology, and general internal medicine consultant in central London who specialises in polycystic ovary syndrome (PCOS), type 1 diabetes and technology and obesity, alongside hypoglycaemia, thyroid and adrenal gland disorders. She privately practises at London Bridge Hospital - part of HCA Healthcare and Guy's and St Thomas' Private Healthcare, while her NHS base is Guy’s and St. Thomas’ NHS Foundation Trust where she leads the young adult diabetes and endocrine services at Guy’s and St. Thomas’ Hospital.

Dr Kariyawasam is a fellow of the Royal College of Physicians, London, and holds a Masters in Diabetes and Endocrinology from King’s College London. She's actively involved in undergraduate teaching at King's College London Medical School where she is the teaching lead and a senior lecturer, ensuring the next generation of physicians are equipped with the necessary knowledge and skills in diabetes and endocrinology.

In addition to her clinical and educational work, Dr Kariyawasam is dedicated to research, with interests in managing diabetes during adolescence, supporting young adults with diabetes, and addressing hypoglycaemia.

She has won national awards for her innovative models of care for young adults and is a member of prestigious professional organisations including Diabetes UK, the American Diabetes Association, the British Endocrine Society, and the Society of Endocrinology.

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