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Dr Sean PrestonGastroenterology in Central London
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Dr Sean Preston

Gastroenterology in Central London and W1G Marylebone London

BSc (Hons) PhD MBBS FRCP
GMC: 4230881

0Patient reviewsReview

Expert in:
Acid reflux
Barrett's oesophagus
Irritable bowel syndrome (IBS)
Inflammatory bowel disease (IBD)
Diarrhoea
Constipation
  • Information
  • CV
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Professional statement

Dr Sean Preston is the medical director and director of endoscopy at The Princess Grace Hospital and chair of the Digestive Diseases and Renal Department for HCA Healthcare UK.

Graduating from St Mary’s Hospital Medical School, Paddington in 1995, Dr Preston completed the majority of his postgraduate training at Barts and The London NHS Trust, one of the UK’s leading teaching hospitals. He further honed his expertise with an Advanced Endoscopy Fellowship in Sydney before being appointed consultant at Barts in 2006, where he continues to practise.

Dr Preston specialises in the diagnosis and treatment of a wide range of gastrointestinal conditions, including gastro-oesophageal reflux disease (heartburn), Barrett’s oesophagus, irritable bowel syndrome, inflammatory bowel disease, diarrhoea, constipation, bloating, and complex diagnostic and therapeutic endoscopy of the oesophagus, stomach, and colon.

With a strong interest in gut health and the role of the microbiota, he integrates diet, prebiotics, and probiotics into his approach to maintaining optimal digestive health. His consultations are structured to provide patients with ample time to discuss their symptoms and fully understand their condition.

His PhD at Cancer Research UK, London, focused on stem cells in gastrointestinal cancers, contributing to several landmark publications in the field. Dr Preston served as director of endoscopy at Barts Health from 2008 to 2024 and is currently deputy director of the North East London NHS Bowel Cancer Screening Programme. His endoscopic expertise spans gastroscopy, colonoscopy, and endoscopic ultrasound, and he is an accredited colonoscopist for the National Bowel Cancer Screening Programme, having met its rigorous accreditation standards and performance audits.

His research continues to focus on Barrett’s oesophagus and gastrointestinal cancer, with numerous key publications and book chapters to his name. Recognised for his contributions to gastroenterology, Dr Preston was featured in the 2013 Tatler Doctors Guide of Britain’s Top 250 Consultants and is listed in the 2024 Spears 500 Top Recommended UK Private Doctors and Surgeons. He has also served as president of the Gastroenterology and Hepatology Section of the Royal Society of Medicine (2015-2017) and chairman of the Specialists’ Committee for the Independent Doctors’ Federation.

As a founding partner of London Digestive Health, based at the London Digestive Centre, Dr Preston works alongside a multidisciplinary team of leading gastroenterologists, GI surgeons, radiologists, oncologists, and dietitians, providing comprehensive, first-class digestive care.

Clinics

The Princess Grace Hospital
  • The Princess Grace Hospital profile image

    The Princess Grace Hospital - part of HCA Healthcare

    Central London, The Princess Grace Hospital, 42-52 Nottingham Pl, W1U 5NY

    Medical insurances accepted

    Bupa
    AXA
    AVIVA
    Cigna
    WPA
    Simply Health
    I'm paying for myself
    Allianz

Credentials

Professional experience

  • 31 years of experience
  • Consultant Gastroenterologist, London Digestive Health, London Digestive Centre (present)
  • Consultant Gastroenterologist, The Princess Grace Hospital, part of HCA Healthcare UK (present)
  • Consultant Gastroenterologist, Royal London Hospital, Barts Health (present)
View more

Subspecialties

  • Bloating
  • Endoscopy (OGD)
  • Colonoscopy
  • Gastroscopy
  • Bowel Cancer Screening
  • Endoscopic Ultrasonography
  • Enteroscopy
  • Sigmoidoscopy
  • Gastro-oesophageal Reflux Disease (GORD) 
  • Rectal Bleeding
  • Food Intolerance
  • Coeliac Disease
  • Ulcerative Colitis
  • Crohn's Disease
View more

Professional memberships

  • Royal College of Physicians

Education

  • Bachelor of Medicine, Bachelor of Surgery (MBBS) St Mary's Hospital Medical School (1995)
  • FRCP,  Royal College of Physicians
  • PhD, St Mary's Hospital Medical School, London
View more

Positions in organisations

  • Chair of Digestive Diseases and Renal Department, HCA Healthcare UK
  • Founding partner of London Digestive Health, within London Digestive Centre
  • Chairman of the Specialists' Committee, The Independent Doctors' Federation
  • Accredited Colonoscopist for the National Bowel Cancer Screening Programme
  • President of the Gastroenterology and Hepatology Section, The Royal Society of Medicine (2015 - 2017)
View more

Languages spoken

  • English
Registration number: 4230881

Treatments

The doctor is expert in

Acid reflux

Barrett's oesophagus

Constipation

Diarrhoea

Inflammatory bowel disease (IBD)

Irritable bowel syndrome (IBS)

The doctor also specialises in:

Capsule endoscopy

Chronic diarrhoea

Coeliac disease

Colic

Colitis

Dysphagia

Eating disorders

Endoscopic ultrasound (EUS)

Endoscopy

Food allergies

Frequently Asked Questions

What is Dr Sean Preston's specialty?

Dr Sean Preston is a consultant specialising in Gastroenterology, with extensive experience in assessing and treating patients within this field.

Which conditions and treatments does Dr Sean Preston specialise in?

Dr Sean Preston is a gastroenterologist who provides assessment and treatment for Diarrhoea, Irritable bowel syndrome (IBS), Barrett's oesophagus, Constipation, Acid reflux and Inflammatory bowel disease (IBD). During your consultation, you will be informed of the most suitable options following a personalised evaluation.

How many years of experience does Dr Sean Preston have?

Dr Sean Preston has 31 years of professional experience as a consultant gastroenterologist, providing specialist assessment and treatment in this medical field.

What do patients say about Dr Sean Preston?

There are no published patient reviews for Dr Sean Preston yet. Once the first patients share their experience, you will be able to read their comments here.

Are Dr Sean Preston's reviews verified?

Yes. All Dr Sean Preston's reviews come from verified patients who have attended either an in-person or an e-Consultation appointment. We use a system that ensures authenticity and prevents fake reviews. Some profiles may also display reviews from other platforms, which follow their own verification policies, with the source always clearly indicated.

Where does Dr Sean Preston practise?

Dr Sean Preston practices in the following locations:

  • Central London at The Princess Grace Hospital, 42-52 Nottingham Pl
  • W1G Marylebone London at 41 Welbeck St, London

In-person consultations are available at these locations as a Gastroenterology.

How can I book an appointment with Dr Sean Preston?

You can book an appointment with Dr Sean Preston directly from this page by selecting the time that suits you best. Alternatively, you can call the phone number shown if you prefer personalised assistance.

Does Dr Sean Preston see NHS patients?

Many specialists featured on Top Doctors also hold NHS positions. However, appointments arranged for Dr Sean Preston through this platform are private, either self-pay or covered by private medical insurance.

Does Dr Sean Preston offer private appointments?

Yes, Dr Sean Preston offers private appointments for patients seeking flexible and direct access to a consultant gastroenterologist.

Does Dr Sean Preston offer online consultations?

At the moment, Dr Sean Preston does not offer online consultations. You can book an in-person appointment from this page or call +44 02038840543. When calling, please mention that you are a Top Doctors patient.

Does Dr Sean Preston accept insurance?

Dr Sean Preston works with the following private medical insurance providers: Bupa, AXA, AVIVA, Cigna, WPA, Simply Health, Allianz, CS Healthcare, Vitality, The Exeter Friendly, Groupama, April, Freedom, General Medical, Saga, Healix, Legal & General Insurance, Health-online, Benenden Health , Aetna, Bupa Global and I’m paying with insurance. If your insurer is not listed, you may contact the practice directly to confirm your coverage.

What is Dr Sean Preston's availability?

Dr Sean Preston's availability depends on the appointment slots open at any given time. On this page, you can check current availability, and if no slots are shown, you can request an appointment or contact the practice directly.

What payment methods does Dr Sean Preston offer?

You can pay for your consultation with Dr Sean Preston using the following methods: Self-paying.

What languages does Dr Sean Preston speak?

Dr Sean Preston is a gastroenterologist who offers consultations in English.

How is Dr Sean Preston selected to appear on this platform?

All doctors listed on Top Doctors, including Dr Sean Preston, undergo our rigorous selection process. Only one in five specialists meets the required standards to be included.
Discover Top Doctors' rigorous medical selection process.
The doctor, or where applicable the hospital or medical centre in which the doctor provides services, undertakes to keep the information relating to the prices of services published on their profile on the Top Doctors platform up to date at all times, ensuring that such prices correspond to those effectively charged to patients. In the event of any discrepancy between the published price and the price ultimately charged to the patient, the doctor and/or the relevant hospital or medical centre shall be solely liable towards the patient and towards Top Doctors for any claim or financial difference arising therefrom.

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The Princess Grace Hospital - part of HCA HealthcareCentral London, The Princess Grace Hospital, 42-52 Nottingham Pl, W1U 5NY
Payment methodSelf-paying
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