Dr Ahmir Ahmad

Consultant Gastroenterologist and Specialist Endoscopist

MBBS BSc MRCP PhD

Contact

NHS Secretary:

Rupa Guedes

Tel: 020 8235 4091 Email: rupa.guedes@nhs.net

Private Secretary:

Megan Lomax

Tel: 07435 081678 Email: clinic@drahmirahmad.com

Dr Ahmir Ahmad

MBBS BSc MRCP PhD

Consultant Gastroenterologist and Specialist Endoscopist

Dr Ahmir Ahmad is a Consultant Gastroenterologist and Specialist Endoscopist at St Mark’s Hospital, appointed in 2023, and an Associate Director of St Mark’s Academic Institute. He has a particular interest in complex polypectomy, optical and AI-assisted diagnosis, and advancing colonoscopy practice.

He graduated with distinction from University College London in 2010 and completed a four-year specialist clinical and research endoscopy fellowship at St Mark’s from 2018 to 2022. His PhD at Imperial College London, supervised by Professor Brian Saunders, explored efficiency in colonoscopy across the patient pathway. He is an Honorary Clinical Senior Lecturer at Imperial.

He led DISCARD3, a major study of optical diagnosis with a resect and discard strategy, whose findings are now being adopted nationally. As Clinical Lead for Optical Diagnosis for NHS England, he is supporting implementation within the Bowel Cancer Screening Programme. He is Deputy Chair of the British Society of Gastroenterology Endoscopy Clinical Research Group.

He has published widely and enjoys teaching. He co-authored the 8th edition of Cotton and Williams’ Practical Gastrointestinal Endoscopy, the internationally renowned textbook used to train endoscopists worldwide, and is first author of the chapter on insertion technique in Waye’s Colonoscopy: Principles and Practice. In 2025 he received the Royal College of Physicians Excellence in Patient Care Award.