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Gastroenterologist Sameer Zar, Private Clinic Treatment, Self Pay Patients

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Dr Sameer Zar, Consultant Gastroenterologist

Specialist Details
Full name

Dr Sameer Zar




Consultant Gastroenterologist



Site specialisation
Site specialisation 2
Clinical interests

Upper and lower gastrointestinal cancer, gastro-oesophageal reflux, Barrett's Oesophagus, bowel screening, IBS, Crohn?s and colitis, pancreas and hepatobiliary disorders. Procedures including endoscopy, colonoscopy, ERCP, EUS, EMR/ESD, capsule endoscopy, oesophageal manometry and pH studies. 

Background Information

Dr Sameer Zar is a Consultant Gastroenterologist at The Royal Marsden. In addition to diagnostic and therapeutic upper and lower GI endoscopy, he performs endoscopic ultrasound, ERCP, endoscopic mucosal resection and endoscopic submucosal dissection of early upper and lower GI cancers. He is also the upper GI cancer lead at Epsom and St Helier NHS trust. 
He completed his postgraduate training in General Medicine and Gastroenterology in South West London in 2005.  He was awarded a PhD by the University of London for his research work on the role of food hypersensitivity in Irritable Bowel Syndrome and its effect on gastrointestinal motility at St George's Hospital Medical School. He has published several peer-reviewed articles in leading international journals. He is an expert endoscopist with special interest in interventional procedures of upper and lower gut and pancreato-biliary system.

Languages spoken

English, Urdu, Hindi, Punjabi

Regular Cromwell clinics


Clinic days

Mon: Tue: Wed: Thurs: Fri: pmSat:

Appointments telephone number

020 7460 5700

Additional Career Information
Year qualified



British Society of Gastroenterology, American Society of Gastrointestinal Endoscopy, American Gastroenterology Association, European Society of Gastrointestinal Endoscopy

NHS hospitals

Royal Marsden


UGI Cancer Lead at Epsom and St Helier Trust

Research interests

Irritable bowel syndrome.

Key published papers

Zar S, Kumar D, Benson MJ. Food hypersensitivity and irritable bowel syndrome. Aliment Pharmacol Ther 2001; 15:439-49. 
Zar S, Kumar D, Benson MJ. Bloating in Functional Bowel Disorders. Aliment Pharmacol Ther. 2002 Nov; 16(11): 1867-76 
Zar S, Benson MJ, Kumar D. Food Specific Serum IgG4 & IgE titres and Skin Prick test to common food antigens in Irritable Bowel Syndrome. American Journal of Gastroenterology. 2005 Jul; 100(7):1550-7 
Zar S, Benson MJ, Kumar D. Rectal Afferent Hypersensitivity and Compliance In Irritable Bowel Syndrome ? Differences Between Diarrhoea Predominant & Constipation Predominant Sub-Groups Eur J Gastroenterol Hepatol. 2006 Feb; 18(2):151-8. 
Zar S, Mincher L, Benson MJ, Kumar D. Food Specific IgG4 Antibody Guided Exclusion Diet Improves Symptoms And Rectal Compliance In The Irritable Bowel Syndrome. Scandinavian Journal of Gastroenterology). 2005 Jul; 40(7):800-7. 


Media coverage

Our health professionals regularly contribute to hospital publications, as well as national newspaper articles and television coverage.