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

SUBSPECIALTIES

Hepatology

REGISTERED WITH

General Medical Council:

LANGUAGES

english

RECOMMENDED FOR

4

Gastroenterology

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 Clinical Lead for Hepatology at the Royal London Hospital.

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 for the HPB cancer board. 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 serves on the British Society for Gastroenterology (BSG) liver committee.

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 and for inflammatory disorders of bile ducts. He regularly lectures in gastroenterology and hepatology and supervises MSc student projects in liver disease at QMUL. He sits on the writing group for national guidelines in liver disease. 

 

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Medical Procedures

  • Gastroscopy
  • Colonoscopy
  • Therapeutic endoscopy
  • ERCP
  • Fibroscan
  • Portal Hypertension

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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

16-11-2018
Excellent very attentive

BY A VERIFIED PATIENT

12-11-2018
Seemed calmly efficient and to understand the issues involved in my case. I felt greatly reassured by his attitude and proposed line of investigation.

BY A VERIFIED PATIENT

09-11-2018
Good

BY A VERIFIED PATIENT

09-11-2018
Calm, supportive and a gentleman

BY A VERIFIED PATIENT

09-11-2018
Dr Kallis is an excellent doctor. He is professional,kind and understanding. I will definitely recommend him to my friends.

BY A VERIFIED PATIENT

09-11-2018
Took the time to go through the results in detail and even researched my hospital records to find out more about my situation. Listened to all my concerns and questions too. All in all, a great service

BY A VERIFIED PATIENT

02-11-2018
Very easy and reassuring.

BY A VERIFIED PATIENT

28-09-2018
Very friendly,thorough,clear and made me feel comfortable for the process.highly recommend

BY A VERIFIED PATIENT

24-09-2018
Extremely helpful and professional.

BY A VERIFIED PATIENT

10-09-2018
Very efficient friendly and insightful.

BY A VERIFIED PATIENT

03-09-2018
Very clear. Intelligent consultation.

BY A VERIFIED PATIENT

03-09-2018
Very good

BY A VERIFIED PATIENT

03-09-2018
A very clear and concise set of explanations with a good bedside manner

BY A VERIFIED PATIENT

31-08-2018
Excellent very happy with level of service

BY A VERIFIED PATIENT

31-08-2018
Very friendly and knowledgeable doctor. He explained the issues and diagnostic very clear to me. Thank you

BY A VERIFIED PATIENT

27-07-2018
Very pleasant specialist who took the time to explain things in depth and in patient friendly language. Would highly recommend.

BY A VERIFIED PATIENT

27-07-2018
Very helpful as always

BY A VERIFIED PATIENT

02-07-2018
Extremely. Clear and concise excellent

BY A VERIFIED PATIENT

29-06-2018
Good

BY A VERIFIED PATIENT

29-06-2018
Excellent

BY A VERIFIED PATIENT

29-06-2018
Very good

BY A VERIFIED PATIENT

29-06-2018
Wonderful

BY A VERIFIED PATIENT

22-06-2018
Good

BY A VERIFIED PATIENT

22-06-2018
Excellent

BY A VERIFIED PATIENT

15-06-2018
Doctor explained the issue in simple details that was easy for me to understand, I felt very comfortable discussing all this and felt that I was in very safe hands. Highly recommend

BY A VERIFIED PATIENT

01-06-2018
Excellent

BY A VERIFIED PATIENT

25-05-2018
I found Dr Kallis as fantastic consultant in the liver clinic. I will strongly recommend Dr Kallis to anyone looking for a liver specialist.

BY A VERIFIED PATIENT

25-05-2018
Happy

BY A VERIFIED PATIENT

26-03-2018
Very good care

BY A VERIFIED PATIENT

26-03-2018
Went through all diagnostics to eliminate any issue

BY A VERIFIED PATIENT

26-03-2018
Dr Kallis is very helpful in providing the background, the reason of the tests to be done, etc.

BY A VERIFIED PATIENT

19-03-2018
Excellent prompt service

BY A VERIFIED PATIENT

19-03-2018
Very clear. Explained things well. Good doctor.

BY A VERIFIED PATIENT

19-03-2018
Very good and easy to understand in layman’s terms

BY A VERIFIED PATIENT

12-03-2018
Excellent introductory visit, put me at instant ease, was structured in his approach and gave clear feedback, on the next phase of treatment.

BY A VERIFIED PATIENT

12-03-2018
Dr Khallis was excellent. He took his time during the consultation to note my medical history and to discuss my concerns. He did not rush and explained everything complex medical terms. Highly recommended.

BY A VERIFIED PATIENT

05-03-2018
Excellent service. Everything fully explained

BY A VERIFIED PATIENT

05-03-2018
Very good doctor!

BY A VERIFIED PATIENT

05-03-2018
I came to see Doctor Yiannis for my liver problem . The doctor very nice and calm . The way the dr was explaining things was very comforting and the results were all good as well . I would recommend anyone to decide for a private treatment come yianis

BY A VERIFIED PATIENT

05-03-2018
Reassuring and helpful

BY A VERIFIED PATIENT

02-03-2018
I saw dr. Kallis and he’s awesome, he helped me with my problem and went through all tests to make sure everything is sorted :) Thanks to the best Gastroenterologist I’ve ever seen :).

BY A VERIFIED PATIENT

02-03-2018
Good

BY A VERIFIED PATIENT

26-02-2018
Excellent and charming intelligent conversation

BY A VERIFIED PATIENT

26-02-2018
Excellent communication and listening skills. Very pleasant to speak to and very helpful.

BY A VERIFIED PATIENT

09-02-2018
Everyone was super helpful. Great experience. Fast and saw me quickly. I really appreciate it.

BY A VERIFIED PATIENT

09-02-2018
Very friendly and provides good explanation of a health condition. Strongly recommend

BY A VERIFIED PATIENT

09-02-2018
Very reassuring. I know I’m in the right hands.

BY A VERIFIED PATIENT

29-01-2018
Excellent as all very comprehensible and comprehensive in an extremely professional but bedside friendly manner.

BY A VERIFIED PATIENT

26-01-2018
Very approachable, professional and the explanations were easily understood and very helpful. I would personally recommend Dr. Kallis to anyone and look forward to my follow up upon moving to the UK.

BY A VERIFIED PATIENT

22-01-2018
An excellent reassuring liver scan was performed quickly and effectively. Dr Kallis explained the procedure and all results with great clarity and professionalism. Many thanks.

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 Mohamed Shariff

13-06-2018
Yiannis and I were colleagues and he was an excellent teacher and doctor.
For specialty: Gastroenterology
For conditions: Liver disease
For procedures: gastroscopy
Connection: We trained together
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

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

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

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