Dr Trystan Lewis
Consultant General Surgeon
Surgery Centre
Sub-specialties: General Surgery, Upper GI Surgery.

Overview
Mr Trystan Lewis is a Consultant General Surgeon at Welbeck Digestive Health specialising in minimally invasive abdominal surgery including advanced keyhole hernia repairs and gallbladder surgery. He established the complex abdominal wall unit at Epsom Hospital and serves as a surgical tutor reflecting his commitment to surgical excellence.
About Dr Trystan Lewis
Mr Trystan Lewis is a Consultant General and Upper Gastrointestinal Surgeon at Welbeck Digestive Health, specialising in minimally invasive abdominal surgery including gallbladder surgery and hernia repair, from straightforward keyhole procedures to complex abdominal wall reconstruction.
He holds a senior NHS post at Epsom and St Helier University Hospitals, where he established and co-leads a specialist complex abdominal wall unit and has developed the advanced bile duct exploration service. He also serves as the College Tutor for Surgery, overseeing the training of future surgeons.
Mr Lewis trained at Imperial College London, where he completed a PhD in surgical innovation and remains active in research, having published and presented work internationally on advanced surgical techniques and innovations.
An advocate of patient-centred care, Mr Lewis is known for using advanced laparoscopic techniques and day-case surgery to minimise pain, accelerate recovery and reduce the stress of surgery on his patients’ daily lives
Areas of Expertise
Dr Trystan Lewis commonly treats:
- Gallstone disease
- Pilonidal disease
- Laparoscopic cholecystectomy (gallbladder removal)
- Complex abdominal wall hernias, include laparoscopic incisional, inguinal, femoral, umbilcial and spigelian hernias
- Lumps and bumps
He offers the following tests and treatments:
- Pilonidal excision
- Laparoscopic (keyhole surgery)
Additional Information
Dr Trystan Lewis's active memberships:
- Fellow of the Royal College of Surgeons
- British Hernia Society
- Association of Surgeons of Great Britain and Ireland
- British Obesity & Metabolic Surgery Society
Dr Lewis currently holds clinical posts at:
- OneWelbeck, London
- Epsom and St. Helier University Hospital
- Spire St. Anthonys Hospital, Cheam
- Ramsay Ashtead Hospital, Ashtead
- Dorking Healthcare, Dorking
Reviews
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