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Dr Yiannis Kallis
MA(Cantab) MB BChir PhD FRCP
Gastroenterology
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About

Dr Yiannis Kallis is a Consultant Hepatologist and Gastroenterologist at the Royal London Hospital (Barts Health NHS Trust) and the Royal Free Hospital London, two of the UK's leading teaching hospitals, where his practice covers a broad range of gastro-intestinal diseases. He specialises in liver disease and disorders of the pancreas and bile ducts, and runs the NE London outreach liver transplant network. 

He is a highly skilled in diagnostic and therapeutic endoscopy and colonoscopy, with a particular expertise in complex ERCP (endoscopy of the bile duct and pancreatic duct). He is clinical lead for ERCP services at Bart Health. He is at the forefront of research into developing novel endoscopic treatments for pancreato-biliary cancers, and is a specialist advisor to the National Institute of Health and Care Excellence (NICE) in this field.

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, stem cells and regeneration at Imperial College London and Cancer Research UK, and publishes 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, QMUL, where he is a  principal investigator on several multi centre clinical trials in treatments for advanced liver disease. He is undergraduate lead for medical education in gastroenterology and hepatology, and sits on the writing group of national guidelines in liver disease. 

 

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Medical Procedures

  • Gastroscopy
  • Colonoscopy
  • Therapeutic endoscopy
  • ERCP
  • Fibroscan
  • Portal Hypertension
  • ALFA pump for ascites

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Special Interests

  • Abnormal LFTs (liver function tests)
  • Alcohol related liver and GI disorders
  • Fatty liver disease
  • Abdominal Pain
  • Viral hepatitis
  • Liver disease
  • Cirrhosis
  • Pancreas, bile duct and gallbladder diseases
  • Liver Cancer
  • Liver transplantation

Education

  • Trinity College Cambridge, MA(Hons) MB BChir 
  • Royal College of Physicians London, FRCP
  • Imperial College London, PhD
  • Member of the British Society of Gastroenterology, the British Association for the Study of the Liver, and the European Association for the Study of the Liver

Reviews

BY A VERIFIED PATIENT

19-01-2018
Very kind and patient. Willing to answer questions and takes time to explain. Came out with clear next steps. Confident I am in good hands.

BY A VERIFIED PATIENT

14-11-2017
Dr Kallis is a good person who really cares.

BY A VERIFIED PATIENT

02-10-2017
I am glad my met Dr. Kallis, he gave me a thorough explanation of all the issues I presented to him. Thank you doctor. Will not hesitate to recommend him to anyone.

BY A VERIFIED PATIENT

29-09-2017
I am very glad to have met Dr. Kallis . He gave me a thorough explanation of my issues. I will not hesitate to recommend him to anyone.

BY A VERIFIED PATIENT

20-07-2017
I am very thankful to the doctor, got all the answers for the questions I had!

BY A VERIFIED PATIENT

17-05-2017
Excellent

BY A VERIFIED PATIENT

18-04-2017
He is top doctor the best

BY A VERIFIED PATIENT

01-12-2016
Very thorough, very thoughtful, very responsive, very caring. I am a US citizen on business in London. Found myself very ill and in need of a gastroenterologist. Found Dr Kallis on Doctify. Perfect solution. Given the unusual nature of my problem coupled with not being from the UK, Dr Kallis went the extra mile to stay on top of my case, intervene with other medical professionals on my behalf and completely make sure I was well cared for. Top notch. All the way. Highly recommended.

BY A VERIFIED PATIENT

29-10-2016
I saw this specialist recently, with his truly lovely specialist nurse. All my questions about a problem which had been highly concerning were answered and I left the appointment reassured and with a very clear plan of action. A huge thanks to the medical team for the excellent, thorough medical and human care.

BY A VERIFIED PATIENT

26-08-2016
Met Dr Kallis first time today for advice on two questions around colon screening and wellbeing. Dr Kallis offered clear and friendly advice and a good choice for next steps. Very friendly team. Thank you.

BY A VERIFIED PATIENT

06-07-2016
A year ago I had an operation that changed my life. Your support through it all has been amazing, for this I am eternally grateful.

BY A VERIFIED PATIENT

06-07-2016
Dear Dr Kallis. Thank you for your exceptionally skilful assistance today. I was left with genuinely no awareness of the procedure at all, no apparent after effects and was able to meet colleagues for lunch afterwards. I am sure that you did do the endoscopy but I have no actual knowledge of it! Many thanks.

BY A VERIFIED PATIENT

06-07-2016
Thank you for your second letter to my GP and copied to me. Also for explaining so carefully my digestive/metabolic status to me when we met. I felt you appreciated deeply how my experiences had left me so anxious at the slightest thing looking wrong. I am so grateful. Now I know the baseline I can keep things in perspective more easily and I feel much better. Even my hip feels a bit better, probably due to relaxation generally. Anyway I am doing more exercise. It felt a bit of an ordeal coming to such a big hepatic centre but I was very glad to be looked after by you and I wish you every success in your future career.

BY A VERIFIED PATIENT

18-04-2016
We would like to thank you for the care and support and is planning the treatment you provided.

BY A VERIFIED PATIENT

18-04-2016
Thank you all very much for taking me into your care and taking very good care me.

BY A VERIFIED PATIENT

15-04-2016
I really couldn't be more grateful. Thank you for giving me the hope to live...

BY A VERIFIED PATIENT

15-04-2016
Dear Yiannis, thank you very much for taking good care of my daughter. May God bless you and your family.

BY A VERIFIED PATIENT

15-04-2016
Dear Dr Kallis, we just wanted to write to you in person to say thank you for everything you did to care for our Dad, Andrew, both in getting the hospital to take his case seriously and your advice during his final days. We also wanted to mention and say thank you to your team and in particular Dr Alex Zissimopoulos, her care for Dad and her patience with our many questions was was a great comfort to us all. Thanks again and all the best with the great work you do.

Peer Recommendations

BY dr Philip Woodland

14-09-2016
Dr Kallis is an exceptional clinician, and a valuable colleague and opinion. Patients I have referred to him have been delighted. I would trust him to treat my family.
For specialty: Gastroenterology
Connection: Is a colleague

BY dr Gareth Parkes

28-02-2017
Dr Kallis, is a hugely experienced and dedicated physician who is always empathic and patient focussed – I would recommend him without hesitation
For specialty: Gastroenterology
Connection: Is a colleague
I have known Dr Yiannis Kallis for over 12 years. He is a highly skilled, knowledgeable and conscientious hepatologist, who always puts his patients first. His gentle manner and humanity are exemplary and I would certainly recommend him to any of my family members and friends without hesitation.
For specialty: Gastroenterology
Connection: Is a colleague

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