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Gastroenterologist John Martin, Private Clinic Treatment, Self Pay Patients

Dedicated GP referral service

Call Cromwell Direct to make a referral on

+44 (0)800 783 9229

More about Cromwell Direct

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Refer a patient to us by telephone, fax or email

How to refer

Make an appointment

8am-8pm Monday to Friday
8am-2pm Saturday
Call our Contact Centre on

+44 (0)20 7460 5700

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Dr John Martin, Consultant Gastroenterologist

Specialist Details
Full name

Dr John Martin




Consultant Gastroenterologist



Site specialisation

Colonoscopy, colorectal cancer screening, capsule endoscopy

Site specialisation 2
Clinical interests

Colorectal cancer: management and screening, inflammatory bowel disease, disease of the small intestine

Background Information

Qualified in 1990 from Cambridge University and King's College Hospital, London. Trained in North West Thames region and appointed as consultant in gastroenterology and general internal medicine in 2002. Currently consultant gastroenterologist at Imperial College Healthcare NHS Trust, with a major interest in colorectal cancer screening, colonoscopy and disorders of the lower GI tract. Director of West London Bowel Cancer Screening Centre and accredited colonoscopist and colonoscopy assessor within the National Bowel Cancer Screening Programme. Colonoscopy teaching faculty at St Georges National Endoscopy Training Centre. Director of West London Capsule Endoscopy.

Languages spoken


Regular Cromwell clinics


Clinic days

Mon: pmTue: Wed: Thurs: eveFri: Sat:

Appointments telephone number

020 7835 1573

Additional Career Information
Year qualified



British Society of Gastroenterology, American Society of Gastrointestinal Endoscopy, St Mark?s Association

NHS hospitals

Charing Cross

Research interests

Colorectal Cancer Screening, Capsule Endoscopy

Key published papers

Media coverage

Our consultants regularly contribute to hospital publications, as well as national newspaper articles and television coverage.