Dr Andrew Thillainayagam

Gastroenterologist in London

MD FRCP

Dr Andrew Thillainayagam areas of expertise:

Professional statement

Dr Andrew Thillainayagam is a consultant physician and gastroenterologist based in London. He specialises in abdominal pain, colonoscopy and endoscopy alongside gastroscopy, liver disease and inflammatory bowel disease (IBD). He practices privately for The London Clinic in central London and Imperial College Private Healthcare in west London and also works for the Imperial College Healthcare NHS Trust as one of the lead interventional endoscopists. 

Dr Thillainayagam always aims to give the best service to his patients; he makes use of cutting-edge techniques and technologies at the forefront of the field of interventional endoscopy.

Dr Thillainayagam graduated from the University of Manchester's highly-regarded medical school in 1984. He undertook further training in the London region at St Bartholomew's and St Mark's Hospitals and in the Oxford region at John Radcliffe Hospital and the Royal Berkshire Hospital.

Dr Thillainayagam's highly-qualified practical expertise is complemented by his respected clinical academic reputation. He has been a consultant lecturer and was promoted to honorary senior lecturer in medicine at Imperial College Healthcare NHS Trust, where he has remained in this top role since 1996. He also manages an undergraduate teaching firm.

Mr Thillainayagam's clinical interests include therapeutic endoscopy, complex functional disorders of the digestive system and hepatopancreaticobiliary medicine as well as inflammatory bowel disease. At present, he is researching into cholangiocarinoma, iron deficiency anaemia and novel endoscopic imaging alongside bile salt malabsorption and the palliation of GI cancer. 

Mr Thillainayagam is chairman of the NW Thames Gastroenterology Group and has written extensively on the subject of gastroenterology. His work has been featured in prominent peer-reviewed journals. He is also on the Clinical Services committee of the British Society of Gastroenterology and an executive committee member of The Medical Council on Alcohol (MCA).

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All reviews are from real patients and have been verified by our Client Relations department to ensure they meet the service standards.

Patient reviews

Verified Patient
18/05/2023

Would you recommend this doctor?

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Patients comments

A wonderful doctor who has helped me hugely over the last couple of years.

Verified Patient
05/12/2022

Would you recommend this doctor?

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Patients comments

I have had many gastro doctors involved in my healthcare but Dr Thillainayagam is my top recommendation. He is professional, caring, thorough and holistic. I feel much more confident and hopeful knowing he is overseeing my care. Dilu his secretary is also wonderful and efficient.

Verified Patient
05/12/2022

Would you recommend this doctor?

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  • Friendliness of the staff
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  • Facility's features

Patients comments

Dr T is outstanding, so holistic, caring and knowledgeable. He has completely changed my overall well-being with his expert advice and support and I cannot recommend him highly enough

Verified Patient
07/11/2022

Would you recommend this doctor?

  • Bedside manner
  • Friendliness of the staff
  • Wait time
  • Facility's features

Patients comments

After suffering a long time with various gastric issues, when it all ended up in pain, I had to see a specialist …and I was very lucky to be advised, by a doctor in my family, to see Dr Thillainayagam - she remembered him since she was a medical student. From my first conversation with Dr T I felt good about my choice: he is a great listener, kind, thoughtful, compassionate and has excellent communication skills. He made me feel at ease talking to him about anything that could have been relevant to my issues. At the end of many laboratory tests and procedures, Dr T took time to explain to me his findings in a simple, friendly, warm and reassuring way. A diagnosis was found and a combination of treatment and some changes in my handling of stress have now changed my life for the better. I simply cannot find enough words to thank Dr T for all his help and kindness. I definitely would recommend him to those I know that are in need to see a brilliant gastroenterologist, a wonderful doctor with great knowledge and a warm and friendly approach.


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Other information about Andrew Thillainayagam

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