Dr Yiannis Kallis

Dr Yiannis Kallis

MA(Cantab) MB BChir PhD FRCP

Gastroenterology

Recommended by 9 specialists
23 years of experience
11 years as a specialist

Overall Rating

Overall Experience

4.94

Bedside Manner

4.94

Explanation

4.94

Top feedback

“Dr Kallis provided a detailed explanation and alleviated my concerns“
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Subspecialties

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

  • English
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Registered with

  • General Medical Council: 4583211
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    Consultation fees

    New appointment: £250

    Follow-up appointment: £200

    Practices worked at

    The London Clinic

    20 Devonshire Place, London, United Kingdom, W1B 6BW
    826 reviews

    The Royal Free London Private Patients Unit

    Pond Street, London, United Kingdom, NW3 2QG
    157 reviews

    Nuffield Health at St Bartholomew’s Hospital

    38 Giltspur Road, London, United Kingdom, EC1A 7BS
    1 review

    Specialist's working hours

    Mon
    09:00 - 15:00
    Tue
    Not available
    Wed
    Not available
    Thu
    17:30 - 19:30
    Fri
    09:00 - 12:30 | 17:00 - 19:00
    Sat
    Not available
    Sun
    Not available

    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.

    Procedures

    • FibroScan
    • Endoscopy (OGD)
    • Gastroscopy
    • Liver Function Tests
    • Colonoscopy
    • Liver Biopsy
    • Colonic Stent
    • ERCP Procedure
    • Enteral Feeding
    • Liver Transplant
    • Oesophageal Stent Insertion
    • Percutaneous Endoscopic Gastrostomy (PEG)
    • Sigmoidoscopy
    • Video Consultation
    Read more

    Special interests

    • Fatty Liver Disease
    • Liver Disease
    • Stomach / Abdominal Pain
    • Gallstones
    • Hepatitis
    • Upper Gastrointestinal Conditions (Oesophagus & Stomach)
    • Cholestasis
    • Gallbladder Disease
    • Haemochromatosis
    • Jaundice
    • Pancreatic Disorders
    • Autoimmune Hepatitis
    • Bile Duct Cancer (Cholangiocarcinoma)
    • Bile Duct Diseases
    • Cirrhosis
    • Gallbladder Cancer
    • Gastric (Stomach) Ulcers
    • Hepatocellular Carcinoma
    • Iron Deficiency Anaemia
    • Liver Cancer
    • Pancreatic Cancer
    • Pancreatitis
    • Pancreatitis
    • Polycystic Liver Disease
    • Primary Billiary Cholangitis (PBC)
    • Primary Sclerosing Cholangitis (PSC)
    • Wilson's Disease
    Read more

    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
    Read more

    Reviews

    4.94 Overall Patient Trust rating
    Overall Experience
    4.94
    Bedside Manner
    4.94
    Explanation
    4.94
    FibroScan
    21/231
    Fatty Liver Disease
    15/231
    Liver Disease
    8/231
    Stomach / Abdominal Pain
    8/231
    Endoscopy (OGD)
    6/231
    Gastroscopy
    5/231
    Gallstones
    3/231
    Liver Function Tests
    3/231
    Pancreaticobiliary Medicine (Bile Ducts & Pancreas)
    3/231
    Colonoscopy
    2/231
    General (Internal) Medicine
    2/231
    Hepatitis
    2/231
    Hepatology
    2/231
    Upper Gastrointestinal Conditions (Oesophagus & Stomach)
    2/231
    Cholestasis
    1/231
    Gallbladder Disease
    1/231
    Haemochromatosis
    1/231
    Jaundice
    1/231
    Liver Biopsy
    1/231
    Pancreatic Disorders
    1/231
    Read more
    Sort by:
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Dr Kallis provided a detailed explanation and alleviated my concerns
    Read more
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Patient seen for:
    Dr Yiannis has been amazing throughout. My family and I are grateful for his attentiveness, care, warmth and his overall manner in keeping me calm and constantly aware and in the loop in regards to my care plan with open and kind communication. I truly believe he saved my life.
    Read more
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Patient seen for:
    Dr Kallis was honest and upfront but also really kind and supportive which is exactly what you want in a doctor.
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    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Patient seen for:
    Dr. Kallis provided my a very detailed explanation and I felt very confident about the treatment
    Read more
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    A very diligent and pleasant doctor with excellent communication . Very happy and would recommend highly .
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    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Patient seen for:
    Dr Yiannis explained the results with much details and made few suggestion about next steps
    Read more
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Dr Kallis was fantastic. At every step of my diagnostic journey he went through the results extensively and took the time to thoroughly answer all my questions. Highly recommended.
    Read more
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Patient seen for:
    Dr Kallis treated me with respect and care. I have full confidence in him and his diagnosis.
    Read more
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Dr Kallis explained stuff very clearly, was very kind, and was very patient in answering my many questions and putting my anxiety at ease. The communication from Dr Kallis and his team has been stellar. Thank you very much!
    Read more
    Overall Experience (5/5)
    Bedside Manner (5/5)
    Explanation (5/5)
    Dr Kallis is a a wonderful person with superb communications skills and a wonderful bedside manner. He has been looking after me for a few years now and has never once disappointed. The information you receive back is communicated to you in a way that makes it easy to digest and understand.
    Read more
    Other Reviews

    Peer recommendations

    Recommended by 9 specialists
    Dr Philip Woodland
    Dr Philip Woodland
    Gastroenterology
    Is a colleague

    "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."

    14-09-2016

    Professor Shahid Khan
    Professor Shahid Khan
    Gastroenterology
    Is a colleague

    "Dr Kallis is an excellent physician and liver/HPB specialist. I recommend him highly"

    12-02-2020

    Recommended for:
    Liver Disease
    Dr Gareth Parkes
    Dr Gareth Parkes
    Gastroenterology
    Is a colleague

    "Dr Kallis, is a hugely experienced and dedicated physician who is always empathic and patient focussed – I would recommend him without hesitation"

    28-02-2017

    Dr Mani Naghibi
    Dr Mani Naghibi
    Gastroenterology
    Is a colleague

    "An excellent opinion and continue to work together. Would recommend."

    12-02-2020

    Recommended for:
    Liver Disease

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