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96 results found in London, UK

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General Surgery
Recommended by 1 specialist
35 years of experience
Colorectal Surgery, Laparoscopic (Key-Hole) Surgery

 Should you require a short notice appointment please contact Emma on 07501 113244

Mr Stephen Warren is a Consultant General, Colorectal & Laparoscopic Surgeon based in London, UK. Following his graduation from University of London in 1986 he soon discovered an interest in laparoscopic surgery, finding that patients experienced less pain compared to traditional methods and also recovered quicker with fewer complications. By 1991 he had performed his first laparoscopic cholecystectomy and as a young consultant was awarded a national scholarship to gain experience at the renowned Cleveland Clinic in USA for a 3 month sabbatical.

He was the recipient of a Master of Surgery MS in Surgery for his published thesis from the University of London.

He has a specialist interest in all abdominal and bowel complaints. He is a highly skilled laparoscopic surgeon and applies his skills to a wide variety of surgical operations, both elective planned and emergencies.

In his personal time he enjoys oil painting, road cycling, and football.

Diseases, Medical Tests and Treatments

His usual patients are referred with:

  • Laparoscopic groin, umbilical and incisional hernias
  • Gallstones and jaundice
  • Bowel cancers and screening
  • Laparoscopic bowel cancer resection
  • Rectal bleeding and piles
  • Change in bowel habit, diarrhoea and constipation
  • Abdominal and pelvic pain, irritable bowel syndrome
  • For the investigation of anaemia and positive blood in stool tests
  • Stomach problems, indigestion and ulcers
  • For colonoscopy or gastroscopy, family/personal history of polyps or bowel tumours
  • Emergencies: appendicitis, abscesses, diverticulitis and abdominal pain
  • Anal and rectal pain, prolapse, fistulas, fissures and painful piles
  • Pilonidal sinus
  • Laparoscopic treatment of diverticulitis, colovesical fistulas
  • Laparoscopic treatment of complicated Crohn’s disease
  • Laparoscopic treatment of complicated colitis
  • Colostomy and ileostomy problems
  • Anal pain and bleeding in children
  • Excision of skin lesions
  • Lipomas
  • Advanced laparoscopic (keyhole) surgery
  • Bowel and rectal surgery
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Recommended by 3 specialists
23 years of experience
Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease

Mr Edward John Despott, Consultant Gastroenterologist and Endoscopist, currently works within the Royal Free Hospital NHS Trust, in the Endoscopy unit. He currently holds the position of Clinical Lead for this unit, as well as Honorary Associate Professor for the University College London (UCL) Institute for Liver and Digestive Health within the same NHS Trust. He is highly experienced in performing device-assisted enteroscopy (double-balloon enteroscopy (DBE)), capsule endoscopy (CE), therapeutic colonoscopy (especially complex polypectomy - EMR and ESD), and transnasal upper GI endoscopy. He also has a wealth of experience in the management and treatment of inflammatory bowel disease.

Mr Despott has developed his experience by undergoing specialist training in gastroenterology and advanced gastrointestinal endoscopy within the North East Thames Rotation of London Deanery School of Medicine. He has also trained in several other prestigious units including St Mark’s Hospital and Academic Institute and abroad in Japan. During his training he received multiple scholarships to undertake training in gastrointestinal endoscopy.

Mr Despott also undertook a research degree, which resulted in him being awarded a MD(Res) for his work by Imperial College London. He has maintained his interest in research with a plethora of peer-reviewed articles and book chapters, as well as him being asked to be a referee for several high impact journals. He is regularly invited as a highly experienced trainer and demonstrator for several international conferences. He is also respected enough within his field to be asked to a member on endoscopy guideline and education committees.

You can find out more about Mr Despott at his website

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General Surgery
Recommended by 1 specialist
32 years of experience
Laparoscopic (Key-Hole) Surgery, Colorectal Surgery

Mr Colin Elton is a respected Consultant General, Colorectal and Laparoscopic Surgeon working at Barnet Hospital and Edgware Community Hospital. He has expanded his colorectal practice to perform laparoscopic and robotic resections for colorectal cancer and rectal prolapse, introducing newer haemorrhoid procedures such as haemorrhoidal artery ligation (HALO). He also runs courses in London, teaching this procedure to other consultants. His other clinical work centres around hernia repairs and he regularly performs laparoscopic repairs on adults and children.

Mr Elton has worked with NHS Barnet to set up a one-stop colorectal service based at Barnet Hospital and is the Clinical Lead for Endoscopy at Barnet and Chase Farm NHS Trust. Although his surgical workload provides a busy schedule, he is also committed to training. He has recently organised an innovative teaching programme for surgical registrars to learn hernia repairs and laparoscopic cholecystectomy and has organised courses for students and junior doctors.

It is important that HCA is transparent about our relationship with those doctors who provide us with clinical guidance on delivering the best possible care to patients and operating our hospitals safely and efficiently. We set out here some of the ways in which we work together and the amount we pay this doctor for such services.

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General Surgery
Recommended by 2 specialists
23 years of experience
Colorectal Surgery, Laparoscopic (Key-Hole) Surgery, Upper GI (Gastrointestinal) Surgery

Mr Pasha Nisar FRCS, is a Consultant Colorectal and Laparoscopic (keyhole) surgeon at Ashford & St Peter’s NHS Trust appointed in 2011. He is lead for colorectal cancer and inflammatory bowel disease surgery at the Trust. He performed the first single incision ‘scarless’ operation for cancer and the first artificial sphincter implant at the Trust. He established the department's research programme with Royal Holloway, University of London and supervises PhD studies on genetic biomarkers for colon cancer. He is co-ordinating development of robotic surgery and is clinical lead for endoscopy at Princess Margaret Hospital.

Mr Nisar grew up in Sunningdale and attended King’s College School, Wimbledon. He read medicine at Trinity College, Cambridge University and Addenbrooke’s. He was awarded a doctorate from The University of Nottingham for his thesis at the Academic Surgical Unit. Specialist surgical training was completed in the London Deanery including St George’s, Frimley Park, Royal Surrey Hospitals. Mr Nisar spent one year at the Cleveland Clinic USA, a world renowned centre of excellence, at the Department of Digestive Disease training under Professor Vic Fazio. Mr Nisar is a high volume surgeon with expertise in all aspects of colorectal disease, hernia repair and endoscopy. His focus is on achieving the best clinical outcomes and excellent results for patients. He is an international conference speaker with over 50 articles and book chapters published. Mr Nisar was voted Global Health and Pharma Colorectal Surgeon of the Year 2019. 

Expert areas: 

Groin and abdominal hernia surgery, laparoscopic and mesh free repair 

Advanced colonoscopy, EMR polypectomy, endoscopy, bowel cancer screening, screening for colitis

Keyhole surgery for bowel cancer and diverticular disease

Surgery for stage IV endometriosis

Laparoscopic rectopexy for prolapse

Sacral neuromodulation for faecal incontinence

Surgery for Crohn’s and colitis including ileo-anal pouch

Treatment for haemorrhoids, anal pain, fistula and fissures

Rafaelo, HALO surgery for piles and botox injections for pain


Diseases, Medical Tests and Treatments

  • Abdominal reconstruction  
  • Abdominoperineal Resection  
  • Abscess Drainage  
  • Anal Fissure Surgery  
  • Anterior Resection of Rectum  
  • Appendicectomy  
  • Bowel Diversion Surgery  
  • Bowel Surgery (Colectomy)  
  • Colonoscopy  
  • Colorectal Cancer Surgery  
  • Endoscopic Polypectomy  
  • Endoscopy  
  • Epigastric Hernia Repair  
  • Femoral Hernia Repair  
  • Gastroscopy  
  • Haemorrhoid Artery Ligation (HALO)  
  • Haemorrhoid Banding  
  • Haemorrhoidectomy  
  • Hernia Repair (Keyhole)  
  • Ileoanal Pouch Formation  
  • Ileostomy and Colostomy Formation  
  • Incisional Hernia Repair  
  • Inguinal Hernia Repair  
  • Laparoscopy  
  • Laying Open of Fistula  
  • Left Hemicolectomy  
  • Lipoma Removal  
  • Open Hernia Repair  
  • Parastomal Hernia Repair  
  • Pilonidal Sinus Surgery  
  • Rectal Prolpse Repair  
  • Removal Of Rectum And Colon (Proctocolectomy)  
  • Right Hemicolectomy  
  • Sacral Neuromodulation  
  • Skin Lesion Removal  
  • Stoma Revision  
  • Subtotal Colectomy  
  • Surgery for Crohn's and Colitis  
  • Surgery for Diverticular Disease  
  • Umbilical Hernia Repair 
  • Abdominal Pain
  • Anal Cancer
  • Anal Fissure
  • Anal Fistula
  • Anal Pain
  • Appendicitis
  • Bowel Cancer
  • Bowel Cancer Screening
  • Bowel Obstruction
  • Chronic Diarrhoea
  • Colitis (Ulcerative Colitis)
  • Colon Cancer
  • Colonoscopy
  • Colorectal Disease
  • Complex Abdominal Hernia
  • Crohn’s Disease
  • Diverticular Disease
  • Diverticulitis
  • Epigastric hernia
  • Faecal Incontinence
  • Femoral Hernia
  • Haemorrhoids
  • Incisional Hernia
  • Inflammatory Bowel Disease
  • Inguinal Hernia
  • Irritable Bowel Syndrome
  • Laparoscopic (keyhole) Surgery
  • Lumps and Bumps
  • Perianal Abscess
  • Pilonidal Sinus
  • Rectal Bleeding
  • Rectal Cancer
  • Rectal Prolapse
  • Skin Lesions
  • Stomas
  • Umbilical Hernia
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Recommended by 5 specialists
23 years of experience

Dr Ameet Dhar is a leading Consultant Hepatologist based at the Liver and Anti-viral Unit at St Mary's Hospital, Imperial College Healthcare NHS Trust, London, and in the Department of Hepatology and Liver Transplantation at the Royal Free Hospital, London. He is also Clinical Lead for Hepatology at Imperial College Healthcare NHS Trust, and current Lead for the Hepatology Clinical Reference Group for the the North West London Intergrated Care System (NHS). He is Lead for cirrhosis and portal hypertension, pre- and post-transplant medical care at Imperial College NHS Trust. 

Dr Dhar qualified in medicine from Guy's and St. Thomas's Hospital in London and went on to complete his training in general internal medicine and gastroenterology in North West London. He undertook a sub-speciality training in hepatology at Imperial College Healthcare NHS Trust and the Royal Free Hospital during which he also obtained his PhD studying the mechanisms of liver fibrosis, including in Hepatitis C pre- and post-transplantation, and the role of coagulation proteins.

Dr Dhar sees and treats patients with all general liver conditions including alcohol-related liver disease, fatty liver disease, viral hepatitis, and autoimmune disorders of the liver. He provides comprehensive care for patients with cirrhosis and its complications, including portal hypertension, ascites and portal hypertension, pre- and post-transplant medical care

Dr Dhar is actively involved in clinical research and has a keen interest in care for patients with cirrhosis and prevention of liver fibrosis. He has co-authored a large number of peer-review publications and regularly presents at national and international conferences. Dr Dhar is also passionate about teaching and he is an Honorary Senior Lecturer at Imperial College London, and is currently responsible for the Hepatology section of the Royal Society of Medicine (RSM).  

His private practice is based at the Wellington Hospital (inpatient, outpatient, endoscopy), Lindo Wing, St Marys Hospital (inpatient and outpatient) and One Welbeck. 

It is important that HCA is transparent about our relationship with those doctors who provide us with clinical guidance on delivering the best possible care to patients and operating our hospitals safely and efficiently. We set out here some of the ways in which we work together and the amount we pay this doctor for such services.

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General Surgery
Recommended by 1 specialist
30 years of experience
Colorectal Surgery

Mr Christopher Chan is a Consultant General and Colorectal Surgeon based at Barts NHS Trust. He sees patients privately at The Lister Hospital and The Harley Street Clinic, where he is also the lead colorectal surgeon for The Endometriosis Centre.

Mr Chan graduated from Guy’s and St Thomas’ Medical School in 1991 and then undertook surgical training in Cambridge and London, He was awarded an MRC Clinical Fellowship for work on pelvic floor dysfunction, which culminatd in a PhD. He continued with further sub-specialist colorectal training fellowships, which took place in Sydney, Paris and St Mark’s Hospital in Harrow. 

He has wide experience in elective and emergency surgery and expertise in open, laparoscopic and robotic techniques, specifically with complex colorectal diseases. These include Colorectal Cancer, Crohn’s Disease, Ulcerative Colitis, Enterocutaneous Fistula, Intestinal Failure, Complex Anal Fistula, Anorectal and Pelvic Floor Problems, such as incontinence, evacuatory difficulty and constipation, and pelvic floor reconstruction. 

His research interests include investigating new techniques for treating faecal incontinence and pelvic floor dysfunction, ultra-low sphincter preserving resections and inflammatory bowel disease. In addition to his clinical work, Mr Chan is active in teaching and lecturing at all levels, including MBBS, MRCA and Intercollegiate FRCS examinations. He also speaks at national and international conferences.

Diseases, Medical Tests and Treatments

  • Colorectal Surgery 
  • Laparoscopic Surgery
  • Colonoscopy
  • Gastroscopy
  • Bowel Cancer
  • Ulcerative Colitis
  • Irritable Bowel Disease
  • Pelvic Floor Problems
  • Crohn's Disease 
  • Anal Fistula
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Recommended by 3 specialists
21 years of experience
Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease, Irritable Bowel Syndrome (IBS)

Dr Aathavan Loganayagam trained in medicine at Guy’s, King's and St. Thomas’ medical schools. He then underwent rigorous structured specialty training in gastroenterology and general internal medicine in the well respected South London training programme.
He then spent two years during postgraduate training as a research and endoscopy fellow at Guy’s and St Thomas’ Hospitals, London. His research was in the fields of pharmacogenetics, inflammatory bowel disease and gastrointestinal malignancy. He has received awards and grants for outstanding research work, including the prestigious NHS Innovation London Award.
Dr Loganayagam has numerous publications in peer reviewed journals on all aspects of gastroenterology. He is actively involved in clinical research. He has particular local expertise in the practice of personalised medicine and the utilisation of novel therapeutic agents in the treatment of complex inflammatory bowel disease. He is currently the lead clinician for endoscopy at Queen Elizabeth Hospital, Woolwich.
Diagnostic and advanced therapeutic endoscopy remains a major part of his clinical expertise, including assessment and treatment of inflammatory bowel disease, strictures, polyps and cancers.
Dr Loganayagam is an approachable doctor who takes pride in his communication skills with patients. He is keen to ensure that patients are fully informed and involved in all aspects of their care. 

Diseases, Medical Tests and Treatments


Endoscopic mucosal resection (EMR)

Breath Testing

Oesophageal manometry

Therapeutic endoscopy


Upper GI endoscopy

Diagnostic and therapeutic endoscopy

Diagnosis and screening or surveillance of gastrointestinal cancers

Inflammatory Bowel disease (IBD)

Bowel/colorectal cancer

Pancreatic cancer

Stomach/gastric cancer

Oesophageal cancer


Bacterial overgrowth/Intestinal Dysbiosis

Food tolerances/allergy

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34 years of experience
Pancreaticobiliary Medicine (Bile Ducts & Pancreas), Hepatology, Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease + 2 more

Dr Ray Shidrawi is a Consultant Gastroenterologist with many over three decades of experience in the treatment and management of G.I conditions, including inflammatory bowel diseases, coeliac disease and food intolerances. He is also well versed in techniques such as upper GI endoscopy, endoscopic ultrasound, percutaneous endoscopic gastronomy intersection, and endoscopic retrograde cholangiopancreatography. He sees private patients at The Wellington Hospital.

Dr. Shidrawi earned his primary medical qualification at the University of London in 1987, after which he completed his basic and specialist training, and joined the specialist register in 1998. He has since practiced at Homerton University Hospital, where he undertakes many endoscopic treatments for bariatric surgical complications in addition to non-invasive procedures to manage obesity. Dr. Shidrawi has also established a Ketogenic Enteral Nutrition diet in the UK with help from his prior colleagues at La Sapienza University, Rome.

Dr. Shidrawi is also an active member of the scientific research community, authoring many peer-reviewed publications regarding nutrition, coeliac disease, and endoscopy in renowned clinical journals.

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General Surgery
Recommended by 1 specialist
38 years of experience
Colorectal Surgery

Professor Sina Dorudi is a Professor of Surgical Oncology previously appointed as a consultant colorectal surgeon to St Bartholomew's and The Royal London Hospital in 1996 where he was Professor of Surgical Oncology and Lead Colorectal Cancer Surgeon before leaving in 2010. He is currently Medical Director at The Princess Grace Hospital where he has continued his busy practice as a colorectal surgeon.

Professor Dorudi qualified in London in 1983, training extensively in general and colorectal surgery in Kent, London and Oxford. He continued to complete a senior speciality fellowship in colorectal surgery in Sydney, developing his skills in pelvic and rectal cancer surgery and undertook a period of research at the CRUK Colorectal Cancer Unit at St Mark's Hospital, London and was awarded his PhD in 1994. 

Professor Dorudi's research focuses on improving the prognostic stratification of colorectal cancer patients following surgery and the immunology of differing colorectal cancer phenotypes. He is a well-established postgraduate trainer in pelvic surgery and is jointly responsible for delineating the new undergraduate surgical curriculum for 2008.

Diseases, Medical Tests and Treatments

  • All aspects of colorectal surgery (open and laparoscopic)
  • Laparoscopic procedures ('keyhole surgery')
  • General surgery (particularly abdominal wall and groin hernia)
  • Gastroscopy OGD
  • Colonoscopy
  • Flexible sigmoidoscopy
  • Fistulas/pilonidal sinus (including laser treatment)
  • Haemorrhoids ('piles')
  • Fistulas/pilonidal sinus (including laser treatment)
  • Bowel cancer
  • Rectal bleeding
  • Colorectal disease
  • Crohns
  • Ulcerative colitis
  • Colon cancer
  • Anal fistula
  • Rectal cancer
  • Hernias
  • Inguinal hernia
Read more
21 years of experience
Pancreaticobiliary Medicine (Bile Ducts & Pancreas), Hepatology, Inflammatory Bowel Diseases (IBD) such as ulcerative Colitis or Crohn's Disease + 2 more

Dr Sukh Chatu, Consultant Gastroenterologist currently works in the King’s College Hospital. He is highly specialised in all matters of gastroenterology, hepatology, and general medicine.

Dr Chatu begun his medical education at St Bartholomew’s and Royal London Medical School where he qualified from in 2000. He then went on to undergo a 5-year specialist training programme on Gastroenterology & General Medicine within the London Deanery, gaining experience from numerous prestigious London hospitals. During his training he was also able to gain experience abroad by undergoing a year long course in Australia. Upon coming back to the UK he undertook a research degree, resulting in him being awarded a MD for his efforts.

Dr Chatu has remained an active researcher with numerous peer-reviewed publications, and a highly successful textbook. He currently holds the position of Honorary Senior Clinical Lecturer at King’s College London, and most recently he was awarded a Medical Research Council grant. His research resulting in him being invited to parliament to discuss how to manage gastrointestinal cancer; a hugely prestigious moment for him. He is currently a member of several organisations including the British Society of Gastroenterology, American Gastroenterological Association, British Medical Association, and The Royal College of Physicians. He is dual-accredited in both general medicine and is an advanced life support instructor, and aims to operate under a holistic approach.

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