For providers
Provider Login
Dr Yiannis Kallis

Dr Yiannis Kallis

Gastroenterologist

London, W1B 6BW

Verified profile
25 years of experience
Verified profile
25 years of experience

Patient Trust Score

4.93

249 patient reviews

11 professional endorsements

4.93
Overall Experience
4.93
Bedside Manner/Professionalism
4.92
Explanation

167 recommendations for:

FibroScan(31)
Fatty Liver Disease(19)
Liver Disease(17)
Other(100)

Recent patient review

27 Mar 2024

Dr Kallis is a very attentive and caring doctor. He’s also very knowledgeable and explained...

Call

Email

Book

AboutFeesLocationReviewsEndorsementsFAQ

About

Please be aware that during the COVID-19 outbreak Dr Kallis will be undertaking face-to-face consultations if required. Video and telephone consultations are also available, please contact for further information.

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 and Network Director for Hepatology across NE London integrated care service.

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 and the British Liver Transplant Group 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.


Areas of expertise

Based on patient reviews & endorsements by other professionals

  • FibroScan (19%)
  • Fatty Liver Disease (11%)
  • Liver Disease (10%)
  • Stomach / Abdominal Pain (7%)
  • Endoscopy (OGD) (7%)
  • Others (47%)

Subspecialties
  • Pancreaticobiliary Medicine (Bile Ducts & Pancreas)
  • Hepatology
  • General (Internal) Medicine

All conditions and treatments
  • Fatty Liver Disease
  • Liver Disease
  • Stomach / Abdominal Pain
  • Gallstones
  • Hepatitis
  • Primary Billiary Cholangitis (PBC)
  • Upper Gastrointestinal Conditions (Oesophagus & Stomach)
  • Bile Duct Diseases
  • Cholestasis
  • Gallbladder Disease
  • FibroScan
  • Endoscopy (OGD)
  • Gastroscopy
  • Liver Function Tests
  • Colonoscopy
  • ERCP Procedure
  • Liver Biopsy
  • Colonic Stent
  • Enteral Feeding
  • Liver Transplant

Registered with

General Medical Council

No. 4583211


Qualifications
  • 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

languages spoken
  • English
consultation fees
  • New appointment: £250
  • Follow-up appointment: £200

insurers
  • AXA PPP Healthcare
  • Bupa Fee Assured
  • Bupa
  • WPA
  • Simply Health
  • Healix
  • Aviva Health
  • Allianz Worldwide Care
  • Vitality Health
  • Cigna
  • Aetna
  • Freedom Healthcare

Location

All locations

The London Clinic

4.88
(1276)
20 Devonshire Place, London, United Kingdom, W1B 6BW
20 Devonshire Place, London, United Kingdom, W1B 6BW
Monday
09:00 - 15:00
Tuesday
Enquire
Wednesday
Enquire
Thursday
Enquire
Friday
09:00 - 12:30
Saturday
Enquire
Sunday
Enquire
4.8
(227)
Pond Street, London, United Kingdom, NW3 2QG
Pond Street, London, United Kingdom, NW3 2QG
Monday
Enquire
Tuesday
Enquire
Wednesday
Enquire
Thursday
Enquire
Friday
17:00 - 19:00
Saturday
Enquire
Sunday
Enquire
5
(16)
Available
38 Giltspur Road, London, United Kingdom, EC1A 7BS
38 Giltspur Road, London, United Kingdom, EC1A 7BS
Monday
Enquire
Tuesday
Enquire
Wednesday
Enquire
Thursday
17:30 - 19:30
Friday
Enquire
Saturday
Enquire
Sunday
Enquire

Reviews

All reviews(249)
Replies
Last 7 days
Last 30 days
Last 6 months
Filter by condition:
FibroScan (29)
Fatty Liver Disease (18)
Liver Disease (13)
Stomach / Abdominal Pain (11)
Endoscopy (OGD) (10)

94 %

5 %

0 %

0 %

< 1 %

*Star rating based on patient reviews

249 reviews

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

Dr Kallis is a very attentive and caring doctor. He’s also very knowledgeable and explained everything in great detail. I feel confident in the treatment plan.

27 Mar 2024verified patient
Patient seen for:
FibroScan
Hepatitis
Autoimmune Hepatitis

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

He was informative and kind, reassuring and pragmatic. I feel lucky to be under his care.

22 Mar 2024verified patient
Patient seen for:
Primary Billiary Cholangitis (PBC)
Hepatology
Liver Function Tests

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

Excellent, professional and reassuring manner

22 Mar 2024verified patient
Patient seen for:
FibroScan

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

very happy

09 Mar 2024verified patient
Patient seen for:
Fatty Liver Disease

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

Dr Kallis was great and communicated well throughout my treatment, and I would highly recommend

28 Feb 2024verified patient
Patient seen for:
Liver Disease
Colonoscopy
FibroScan

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

DR Kallis clearly described the process of checking my liver through blood samples and scans and followed up with a clear explanation of the results. The process was fast and efficient and did not involve delays or long waits. I would recommend his services to others.

27 Feb 2024verified patient
Patient seen for:
Liver Function Tests

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

He was very good, excellent manner, great level of concern and insight into my condition and what to do.

06 Feb 2024verified patient
Patient seen for:
Gastroscopy
Fatty Liver Disease
Stomach / Abdominal Pain

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

It's always worrying when you are referred to see a medical consultant, but Dr. Kallis was reassuring, calm, a clear communicator and very professional. Highly recommended.

02 Feb 2024verified patient
Patient seen for:
Liver Function Tests
FibroScan

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

I instantly felt that Dr. Kallis was interested in me and willing to patiently ellucidate details of the procedure. I did not feel that I was on a conveyor belt.

24 Jan 2024verified patient
Patient seen for:
Gastroscopy
Endoscopy (OGD)

5

5.00
Overall Experience
5.00
Bedside Manner/Professionalism
5.00
Explanation

Dr Kallis, was very detailed, professional and reassuring. Thank you for your time to go through my reports.

23 Jan 2024verified patient
Patient seen for:
Liver Disease
Hepatology
FibroScan
Your trust is our top concern, so providers can't pay to alter or remove reviews.
Learn more here

Endorsements

Have you worked with this specialist?

Most endorsed treatments/conditions
All endorsements
Gastroenterology (10)
Liver Disease (4)
FibroScan (3)
Gastroscopy (2)

11 endorsements

06 Mar 2024
Endorsed for
Pancreaticobiliary Medicine (Bile Ducts & Pancreas)
Pancreatitis

Professor Dorota Dworakowska

Endocrinology & Diabetes
Is a colleague

Excellent, highly regarded colleague and my go-to GI/Liver Specialist. Highly recommended!

19 Mar 2023
Endorsed for
Gastroenterology
FibroScan
Liver Function Tests

Dr. Christos Tziotzios

Dermatology
Is a colleague

Dr Kallis is an excellent physician. He is my to go to when it comes to ERCP and complex liver issues.

09 Oct 2022
Endorsed for
Gastroenterology
Gallbladder Cancer
Alcohol Related Liver Problems

Dr Ahmed Albusoda

Gastroenterology
Is a colleague

Dr Kallis has worked collaboratively with me for many years, and is an excellent clinical colleague. I consider his opinion to be extremely thorough, accurate and professional, and he is held in high esteem by all specialists in our area.

03 May 2022
Endorsed for
Gastroenterology
Liver Disease
FibroScan
+ 10 more

Mr Charles Imber

General Surgery
Is a colleague

FAQ

What are Dr Yiannis Kallis's reviews like?

Dr Yiannis Kallis's overall patient rating is 4.93 out of 5 stars on Doctify. This is based on 249 reviews

What languages does Dr Yiannis Kallis speak?

Dr Yiannis Kallis speaks English

Where is Dr Yiannis Kallis located?

Dr Yiannis Kallis primarily practices at The London Clinic, located at 20 Devonshire Place, London, United Kingdom, W1B 6BW
See more locations

What are Dr Yiannis Kallis working hours?

Dr Yiannis Kallis is working Monday (09:00 - 15:00), Thursday (17:30 - 19:30), Friday (09:00 - 12:30, 17:00 - 19:00)

Find where Dr Yiannis Kallis operates today

Does Dr Yiannis Kallis accept new patients?

Dr Yiannis Kallis generally accepts new patients.

Get in touch with this specialist to enquire as a new patient