Canary Wharf clinic: 0207 132 1440
Orpington clinic: 01689 490 111


Yiannis Kallis

Consultant Hepatologist and Gastroenterologist



Dr Yiannis Kallis works as a consultant hepatologist and gastroenterologist at the Royal London and the Royal Free hospitals, where his clinical practice covers a broad range of liver and pancreato-biliary diseases. He became a consultant in 2011 and has expertise in viral hepatitis, fatty liver, alcohol related liver disease and inflammatory diseases of the bile ducts and pancreas.

A specific focus of his work is liver transplantation, in particular from living related donors, and he runs an outreach liver transplant network across NE London. He is a highly skilled endoscopist and colonoscopist with a particular expertise in complex ERCP, whose research has helped develop novel endoscopic treatments for pancreato-biliary cancers.

Dr Kallis holds an Honorary Clinical Senior Lecturer position at Barts and the London School of Medicine and Dentistry, and is a principal investigator on multi-centre clinical trials in treatments for advanced liver disease. His research has previously focused on the role of stem cells in liver fibrosis and regeneration, and on the interaction between blood clotting abnormalities and liver disease. He publishes and lectures widely, and sits on the writing group of the national guidelines on the use of blood products.

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+44 (0)207 132 1440
+44 (0)1689 490 111
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Yiannis Kallis

Special interests

Abdominal pain
Pancreatic, biliary & gallstone disease
Advanced endoscopy
Fatty Liver disease
Alcohol related GI / liver problems
GI and Liver Cancer
Viral hepatitis
Abnormal LFT’s
Liver health check

Yiannis Kallis is in practice at the following clinic

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