Dr Benjamin Mullish
Consultant in Hepatology and Gastroenterology
- Available from
- London
About Benjamin Mullish
Benjamin is a Consultant Gastroenterologist and Hepatologist at Welbeck and St Mary’s Hospital, London (part of Imperial College Healthcare NHS Trust), where he contributes to the specialist regional clinic for metabolic dysfunction-related steatotic liver disease (MASLD). He also undertakes ward and clinic work across all aspects of hepatology and performs endoscopy. In addition, he is a Research Fellow in the Division of Digestive Diseases at Imperial College London, where he plays an integral role in an active research group investigating the gut microbiome, carrying out both laboratory work and clinical trials across a variety of medical conditions. He is Co-Director of the Imperial FMT service and has contributed to a range of consensus documents and guidelines related to microbiome diagnostics and therapeutics.
Benjamin graduated in Medicine from the University of Cambridge with Double First Class Honours and a Foundation Scholarship, before undertaking combined clinical and academic training in gastroenterology, hepatology, and general internal medicine in London. During his training, he obtained a PhD from Imperial College London for research into the mechanisms by which FMT (and other microbiome-related therapies) exert their therapeutic effects. He has secured competitive research fellowships and grants from the Medical Research Council.
Benjamin has received a number of national and international awards, including the British Society of Gastroenterology Young Gastroenterologist of the Year Award and the United European Gastroenterology Rising Star Award. He has co-authored more than 150 peer-reviewed publications and regularly presents his research at leading medical conferences. He also contributes to both undergraduate and postgraduate teaching programmes at Imperial College London.
Expertise
- Hepatology
- Gastroenterology
Overview
- Age of patients seen
- 18+
- Qualifications
MB BChir MA PhD MRCP AFHEA
- Languages spoken
- English
- Online profiles
- Research highlights
Porcari S., Mullish B.H., Asnicar F., et al. International consensus statement on microbiome testing in clinical practice. Lancet Gastroenterology and Hepatology (2025);10(2):154-167, doi:
https://doi.org/10.1016/S2468-1253(24)00311-X
Mullish B.H., Thursz M.R. Alcohol-associated liver disease: emerging therapeutic strategies. Hepatology (2024);80(6):1372-1389, doi: 10.1097/HEP.0000000000000986.
Mullish B.H., Merrick B., Quraishi M.N., et al. The use of faecal microbiota transplant as treatment for recurrent or refractory Clostridioides difficile infection and other potential indications: second edition of joint British Society of Gastroenterology (BSG) and Healthcare Infection Society (HIS) guidelines. Gut (2024);73(7):1052-1075, doi: 10.1136/gutjnl-2023-331550.
Forlano R., Martinez-Gili L., Takis P..., Mullish B.H., Manousou P. Disruption of gut barrier integrity and host-microbiome interactions underlying MASLD severity in patients with type-2 diabetes mellitus. Gut Microbes (2024);16(1):2304157, doi: 10.1080/19490976.2024.2304157.
Routy B., Lenehan J.G., Miller J W.H..., Mullish B.H., Silverman M.S., Burton J.P., Maleki Vareki S. Fecal microbiota transplantation plus anti-PD-1 immunotherapy in advanced melanoma: a phase I trial. Nature Medicine (2023);29(8):2121-2132, doi: 10.1038/s41591-023-02453-x
- Professional memberships
Member of the Royal College of Physicians
Member of the British Society of Gastroenterology
Member of the British Association for Study of the Liver
Member of the European Association for the Study of the Liver
Steering Group, European FMT Network
- Certifications and Awards
Young Gastroenterologist of the Year, Clinical and Translational Science - British Society of Gastroenterology, 2019.
Winner, Young Investigators Award for Microbiome Researchers - Pharmabiotic Research Institute (PRI)-Institut Mérieux, 2020.
Rising Star Award - United European Gastroenterology (UEG), 2022
Consultations and services
- Self-pay available from £275
- Health insurance
- Self-pay available from £200
- Health insurance
Insurers covered
Tests & treatments
Conditions & symptoms
Locations
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Frequently asked questions
Yes, but only for certain services. Some consultations, assessments, and treatments can be booked directly, while others require a GP or specialist referral. Please check the relevant service page for guidance, and contact the centre if you’re unsure.
We aim to offer appointments as quickly as possible, and many services have same-day or next-day availability. Waiting times vary depending on the appointment type, specialty, and consultant availability, but our team will always offer the earliest suitable appointment.
Yes. You can arrange an appointment for a family member, or someone you care for, just let us know when you get in touch. We’ll need their details and consent to complete the booking, unless you're their legal guardian or have power of attorney.
Your first consultation includes a detailed discussion of your symptoms, medical history, and lifestyle factors, followed by a thorough examination. It’s helpful if you can bring the results of any previous investigations with you, as well as a list of your current medications. Come with a comfortably full bladder so you can provide a urine sample if requested.