
Professor Naila Arebi
Consultant Gastroenterologist & Endoscopist
About Naila Arebi
Prof. Naila Arebi graduated as a Doctor of Medicine from the University of Malta. She pursued her postgraduate training in Oxford and London, leading to accreditation in Gastroenterology and General Medicine in 2004, followed by advanced endoscopy training at St Mark's Hospital. She was awarded a PhD from Imperial College, University of London, supported by the Helicobacter Parkside Study Group. She received the Sybil McMichael Bursary in 2000 and travel scholarships to visit the Medical University of South Carolina Endoscopy Unit, Kishiwada Tokusyukai Hospital, and Osaka University Hospital, Japan.
Following her appointment as a Consultant Gastroenterologist at St Mark's Hospital and an Honorary Senior Lecturer at Imperial College in 2005, she became a Fellow of the Royal College of Physicians in 2010 and Professor of Practice in 2023. Her clinical work involves most aspects of gastroenterology, with key interest areas in Inflammatory Bowel Disease (IBD), Irritable Bowel Syndrome (IBS), and constipation. During her time as a consultant, she set up the Bravo catheterless pH monitoring service to support the oesophageal diagnostic service. She is currently the Director of the IBD Service.
Through the award of an NIHR grant, she led a strategic IBD service improvement project, which included the expansion of the IBD team and the development of several new patient-centred services — namely community, rapid access, biologics, and new diagnosis clinics. She received awards for working in partnership with patients, including the BMJ Commended Award and the Brian Turley Award. She previously held the position of Chairman of St Mark’s Medicine, leading a team of 28 gastroenterologists across the Trust.
She is the Director of the St Mark’s IBD Advanced Therapy Course. Her research focuses on inflammatory bowel disease, where she is the Chief Investigator on several research studies aimed at enhancing our understanding of IBD, testing new treatments, and improving the delivery of care for patients through national and international collaborations. She is a reviewer for several international journals and grant funding bodies, and an author of numerous peer-reviewed publications. Nationally and internationally, she has served as Chair of the British Society of Gastroenterology Adolescents and Young Adults Committee and as a European Crohn’s and Colitis Organisation (ECCO) EpiCom Committee Member.
Her current research interests in IBD focus on delivering better patient-centred care. She is currently investigating the impact of early education on patient empowerment, the use of artificial intelligence to support clinical care, and shared decision-making for clinical treatments. She has expertise in the epidemiology of IBD, optimal therapy in disease management, management of dysplasia in ulcerative colitis and Crohn's disease, IBD in adolescents and young adults, older-onset IBD, and perianal Crohn's disease.
On a personal level she is married and a keen cyclist having completed 723km of the Loire a Velo route over 10 days.
Prof Arebi currently holds clinical posts at:
Consultant Gastroenterologist, St Mark's National Bowel Hospital, London
Director IBD Clinical Service, St Mark's National Bowel Hospital, London
Dean of St Mark’s Academic Institute, St Mark’s National Bowel Hospital, London
Professor of Practice, Imperial College, London
Consultant Gastroenterologist and Endoscopist, The London Clinic, London
Consultant Gastroenterologist and Endoscopist, Princess Grace Hospital and the London Digestive Centre, London
Expertise
- Inflammatory Bowel Disease (IBD)
- Irritable Bowel Syndrome
- Constipation
- Diarrhoea
- Rectal Bleeding
- Heartburn
- Abdominal Pain
- Bloating
- Pelvic Floor Disorders
- Women's Health
- Colonoscopy and Polypectomy
- Colonoscopy Surveillance for IBD
- Gastroscopy
- Bravo Capsule Insertion
- Sigmoidoscopy
- and Proctoscopy
Overview
- Age of patients seen
- 18+
- Languages spoken
- English
- Online profiles
- Research highlights
Notable Publications:
British Society of Gastroenterology guidelines on inflammatory bowel disease in adults. Gut 2025.
Efficacy of Digital Technologies in the management of Inflammatory Bowel Disease: an umbrella review. Lancet Digit Health. 2025.
The Effectiveness of second-and-third line biologics in perianal Crohn's disease - a multicenter propensity score-matched study. J Crohn's and Colitis. 2025. doi: 10.1093/ecco-jcc/jjaf099
Prolonged time to treatment of biologics in inflammatory bowel disease: disparities from a retrospective study in a tertiary referral centre in the UK. BMC Gastroenterol. 2025. doi: 10.1186/s12876-025-03909-9
Low Dietary Quality Index in a Newly Diagnosed Inflammatory Bowel Disease Cohort: Results from a Case-Control Study. Nutrients. 2025. doi: 10.3390/nu17060958
- Professional memberships
Fellow of the Royal College of Physicians
Committee Member on European Crohn's and Colitis Organisation
Member of the British Society of Gastroenterology
- Certifications and Awards
1997 Parkside Helicobacter Study Group
1999 Sybil Mc Michael Bursary
2004 Key Med Award: USA
2004 Ferring Award: Japan
2009-2019 NHS Clinical Excellence Awards
2018 Brian Turley Award for Patient Involvement and Partnership
2018 BMJ award for Patient Partnership: The IBD Care Model Team
2018 R&D Excellence Awards
Consultations and services
Insurers covered


- +5 more
- Allianz Partners
- Bupa International
- Cigna International
- Healix
- Henner
Tests & treatments
Conditions & symptoms
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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.