Dr Yiannis Kallis

Consultant Hepatologist and Gastroenterologist
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Dr Yiannis Kallis is a Consultant Hepatologist and Gastroenterologist specialising in liver, pancreas and bile ducts disease. He performs the FibroScan test, and endoscopy.

Gastroenterology, Hepatology
In-person, Phone call, Video call
From £300


Dr Yiannis Kallis is a Consultant Hepatologist and Gastroenterologist at the Royal London Hospital and the Royal Free Hospital London, two of the UK's leading teaching hospitals.

His practice covers a broad range of gastro-intestinal diseases with a particular emphasis on liver disease and disorders of the pancreas and bile ducts. He is a highly skilled diagnostic and therapeutic endoscopist, with a particular expertise in ERCP (endoscopy of the bile duct and pancreatic duct).

He is Clinical Lead for Liver Diseases at the Royal London Hospital and runs the NE London liver transplant network.

He graduated from Cambridge University with distinction and undertook postgraduate specialty training across several leading London teaching hospitals. He was awarded a PhD in 2010 for his research into liver fibrosis and regeneration at Imperial College London and has published his work in high impact peer-reviewed journals. 

He is currently an Honorary Clinical Senior Lecturer at Barts and the London School of Medicine and Dentistry, where he is a principal investigator on several multi centre clinical trials in treatments for advanced liver disease and for inflammatory disorders of bile ducts. He is actively involved in teaching and helps to run Masters and Specialty Certificate Examination courses in gastroenterology.

He sits on the writing group for national guidelines in liver disease, is a specialist advisor to the National Institute of Health and Care Excellence (NICE), and serves on the British Society for Gastroenterology (BSG) liver committee.

More information

116 Harley Street
London W1G 7JL

Dr Yiannis Kallis is available through The London Clinic's Connect service for video consultations.

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  • Consultant Hepatologist and Gastroenterologist
    Barts Health NHS Trust (Royal London Hospital)
  • Honorary Clinical Senior Lecturer
    Barts and the London School of Medicine and Dentistry
  • Honorary Consultant Hepatologist
    Royal Free London NHS Foundation Trust
  • Liver health and FibroScan
  • Fatty liver
  • Abnormal LFTs
  • Pancreatic disease

  • Gallbladder and bile duct disease

  • Endoscopy

  • Viral hepatitis

  • Year qualified 1998
  • Cambridge 1993 - 1998

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Dr Kallis explains some of the effects of a weekend's drinking to Metro.

Fizz-free February

Alcohol-free challenges are now hugely popular, but do they offer lasting benefits? Dr Kallis explains.



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