
Mr Trystan Lewis
Professional statement
Mr Trystan Lewis is a leading consultant general and upper gastrointestinal surgeon who is an expert when it comes to gallbladder surgery, gallstones, hernia surgery, keyhole (minimally invasive) surgery, abdominal pain, and acid reflux, but to mention a few. He currently practises at both the Ashtead Hospital in Ashtead and Spire St. Anthony's Hospital in London.
After completing both his BSc (2004) and MBBS (2005) at the esteemed Imperial College London, Mr Lewis went on to undertake his specialist training throughout the North West Thames area, before successfully completing his higher surgical training in South West Thames. He would then obtain a PhD in surgical innovation in 2013 from the previously mentioned Imperial College London.
Mr Lewis, who is the current Epsom and St Helier University Hospitals NHS Trust lead of the surgical ambulatory care unit, is a trusted, experienced, and highly skilled surgeon when tasked with performing elective and emergency abdominal surgery. He has, to-date, published an extensive number of peer-reviewed articles in various surgical journals, and has also impressively presented his work throughout Europe as well as North America. Mr Lewis is an extremely passionate trainer for the new generation of surgeons coming through.
Clinics

Ashtead Hospital
Ashtead, The Warren, Ashtead, KT21 2SBMedical insurances accepted
Credentials
Professional experience
- 21 years of experience
- Consultant Surgeon, Epsom and St Helier University Hospitals NHS Trust (2020 - present)
Subspecialties
- Lipoma removal
- Skin lesion treatments
Professional memberships
- General Medical Council (GMC)
- British Obesity and Metabolic Surgery Society (BOMSS)
Education
- BSc, Imperial College London (2004)
- MBBS, Imperial College London (2005)
Positions in organisations
- Clinical Lead, Surgical Ambulatory Care Unit, Epsom and St Helier NHS Trust
- College Tutor for Surgery, Epsom and St. Helier NHS Trust
Publications and conferences
- You can see Mr Lewis' publications on ResearchGate.
Languages spoken
- English
Reviews
- Would you recommend this doctor?
- Treatment of the doctor
- Treatment of the staff
- Waiting time
- Condition of facilities
- Felt very confident with Mr. Trystan Lewis, everything explained perfectly and very happy with the results of my operation.
- Mr Lewis was excellent in all regards. I found him to be extremely approachable and have a lovely manner. I felt very confident about him performing the surgery
- Treatment was excellent from start to finish
- I am very pleased with the results of my operation and the after care.
- I am very pleased with the results of my operation and the after care.
- Mr Lewis treated me with compassion, caring and a full understanding of my unusual circumstances. A problem arose (not his doing) and he solved it within hours.
- Completely satisfied with the whole process.
- Incredible experience with Dr. Lewis and would highly recommend.
- Mr Lewis impressed as a professional with good people skills. I would recommend