MD FRCP
Gastroenterologist
26 years of experience
Harrow, HA1 3RX
(+2 more)
26 connections in healthcare
Skill endorsed
by Dr Rajaratnam Rameshshanker, Mr Simon Harris
26 years of experience
Harrow, HA1 3RX
(+2 more)
26 connections in healthcare
Skill endorsed
by Dr Rajaratnam Rameshshanker, Mr Simon Harris
Dr Aymer Postgate is a Consultant Gastroenterologist with extensive expertise in complex and interventional endoscopy. He graduated from Guy’s and St Thomas’ Hospital, London, in 1999 with First Class Honours and received numerous academic awards during his training, including the Baldwin Prize for Clinical Medicine, the Bristowe Medal and Beaney Prize for Pathology, the War Memorial Clinical Exhibition award, and a Wolfson Foundation scholarship for his intercalated BSc studies.
He completed his core medical training at Charing Cross and West Middlesex Hospitals before undertaking specialist training in gastroenterology and general medicine across the North West London region between 2003 and 2010. During this period, he spent four years at St Mark’s Hospital, including three years in the internationally recognised Wolfson Unit for Endoscopy. His postgraduate research there led to the award of a Doctorate of Medicine (MD) from Imperial College London in 2010. He further developed his subspecialist expertise through a six-month ERCP fellowship at Hammersmith Hospital prior to his appointment as a full-time NHS Consultant at Hillingdon Hospitals NHS Foundation Trust in 2010.
In his NHS practice, Dr Postgate undertakes a wide range of advanced and interventional upper and lower endoscopy procedures, including ERCP and large colonic polyp removal, and he leads the capsule endoscopy service at his Trust. He provides outpatient and endoscopy services at both Hillingdon Hospital and Mount Vernon Hospital, managing the full spectrum of gastroenterology conditions, as well as general hepatology and pancreatobiliary disease. He also looks after a large cohort of inflammatory bowel disease patients in his weekly IBD clinic at Mount Vernon Hospital. He looks after acute medical and gastroenterology / hepatology in-patients at Hillingdon Hospital and provides emergency gastroenterology cover at Hillingdon and Harefield Hospitals.
Dr Postgate has been actively involved in research and academic publishing, with multiple publications in the fields of interventional endoscopy and capsule endoscopy. He has authored and peer-reviewed articles for international medical journals.
Dr Postgate endeavours to engage with all of his patients in a timely, courteous and friendly manner, to explore their symptoms and concerns in depth and arrange relevant investigation if required, and to present a clear opinion and treatment plan tailored to each patient, involving them in every step of the process.
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General Medical Council
No. 4636676
Royal College of Physicians
No. 107285
British Society of Gastroenterology (BSG)
No. 08284
University of London
Medicine
Graduated 1999
Imperial College London
Gastroenterology
Graduated 2009
MB BS BSc (First Class Honours) - United Medical and Dental Schools of Guy's and St. Thomas' Hospitals, 1999
MRCP (London), 2002
MD (Imperial College London), 2010
Fellow of Royal College of Physicians (London), 2015
Consultant Member of British Society of Gastroenterology
Read publications and papers written by this specialist.
01 / 04 / 2007
Argon plasma coagulation in chronic radiation proctitis: Postgate et al - PubMed
Published in Endoscopy
09 / 04 / 2014
A young woman with abdominal distension - PubMed
Published in BMJ
01 / 07 / 2009
Capsule endoscopy versus colonoscopy for the detection of polyps and cancer - PubMed
Published in New England Journal of Medicine
18 / 01 / 2009
Are bowel purgatives and prokinetics useful for small-bowel capsule endoscopy? A prospective randomized controlled study - PubMed
Published in Gastrointestinal Endoscopy
(2047)
The Clementine Churchill Hospital, Sudbury Hill, Harrow, United Kingdom, HA1 3RX
(642)
Rickmansworth Road, Northwood, London, United Kingdom, HA6 2JW
Video consultation
Video Consultation
(0)
Online, Video Consultation, United Kingdom, W1
I recently underwent a colonoscopy with Dr Postgate. He explained the entire procedure to me in advance and during the portion of the procedure that I was awake, he talked me through what he was doing. He took time at the end to go through his findings and answered all of my questions fully. He was reassuring and extremely professional.
The overall process, even though it’s very nerving and stressful Dr Amir Postgate was very thoughtful and explained the procedure. The staff was also a very kind and very supportive over experience was very good.
Nice conversation without stress or time pressure. Open, reassuring and informative both way communication.
Dr Postgate is the consultant I went to see at Bishops Wood Hospital, I found Dr Postgate to be friendly, informative and extremely thorough with trying to assist me with a diagnosis for my symptoms. I was extremely impressed with all the tests Dr Postgate suggested, never have I experieinced anything like this and I am most grateful for his time and suggestions! Thank you very much.
Dr Postgate carried out my gastroscopy and colonoscopy. The procedure went without a hitch and his follow up immediately after and subsequent consultation were clear, concise and reassuring.
Dr. Postgate took extraordinary time to explain a complex situation to me and worked out a great solution for my case
Gastroscopy and colonoscopy performed expertly. I would highly. recommend Him.
Dr Postgate is an amazing doctor. He is highly skilled at colonoscopy such that I had my procedures without sedation and chatted to him throughout! I totally trust his medical opinion and highly recommend him for upper or lower gi issues.

Dr Rajaratnam Rameshshanker
GastroenterologistDr Postgate is a highly skilled interventional gastroenterologist, and also is very personable and popular with all his patients
25 Feb 2026
Mr Simon Harris
General SurgeonWhat are Dr Aymer Postgate's reviews like?
Dr Aymer Postgate's overall patient rating is 5 out of 5 stars on Doctify. This is based on 18 reviews.
What languages does Dr Aymer Postgate speak?
Dr Aymer Postgate speaks English
Where is Dr Aymer Postgate located?
Dr Aymer Postgate primarily practices at The Clementine Churchill Hospital (part of Circle Health Group), located at The Clementine Churchill Hospital, Sudbury Hill, Harrow, United Kingdom, HA1 3RX
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What are Dr Aymer Postgate working hours?
Dr Aymer Postgate is working Wednesday (08:30 - 10:30, 16:30 - 19:00), Thursday (18:00 - 20:00)
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Does Dr Aymer Postgate accept new patients?
Dr Aymer Postgate generally accepts new patients.
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