About Gregory Thomas
Mr Gregory Thomas is a consultant colorectal surgeon at Welbeck and a consultant colorectal surgeon at St Mark’s Hospital, London. specialising in pelvic floor disorders, complex proctology (fistula, fissures and haemorrhoids), pilonidal disease, abdominal wall hernia and inflammatory bowel disease.
Mr Gregory Thomas is qualified from Imperial College School of Medicine. He undertook postgraduate surgical training in London and Surrey. Mr Gregory Thomas completed an MD thesis in pelvic floor disorders at Imperial College London. Prior to his appointment as a consultant, he undertook further specialist training at St Mark’s and in several specialist centres in the USA and Europe.
Mr Thomas continues to maintain a strong academic interest and has published widely in his field, and has presented at many national and international scientific meetings.
Expertise
- Pelvic floor disorders
- Fistula
- Fissures
- Diverticular disease
- Haemorrhoids
- Pilonidal disease
- Inflammatory bowel disease
- Faecal incontinence
- Bowel incontinence
- Constipation
- Bowel prolapse
- Rectal prolapse
- Rectal bleeding
- Rectal pain
- Anal pain
- Anal skin tags
- Hernia
- Haemorrhoids
- Pilonidal sinus
- Pilonidal abscess
- Colonoscopy
- Colostomy
- Ileostomy
- Bowel Cancer test
Overview
- Age of patients seen
- 18+
- Languages spoken
- English
- Online profiles
- Research highlights
Mr Gregory Thomas has approx. 50 peer-reviewed papers
- Professional memberships
Association of Coloproctology of Great Britain and Ireland
European Society of Coloproctology
General Medical Council
British Medical Association
Fellow of the Royal College of Surgeons of England
- Certifications and Awards
ESCP travelling fellowship
ACPGBI travelling fellowship
Consultations and services
- Self-pay available from £325
- Health insurance
- Self-pay available from £200
- Health insurance
Insurers covered
- +4 more
- Allianz Partners
- Cigna International
- Healix
- Henner
Tests & treatments
Locations
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Frequently asked questions
Yes, but only for certain services. Some consultations, assessments, and treatments can be booked directly, while others require a GP or specialist referral. Please check the relevant service page for guidance, and contact the centre if you’re unsure.
We aim to offer appointments as quickly as possible, and many services have same-day or next-day availability. Waiting times vary depending on the appointment type, specialty, and consultant availability, but our team will always offer the earliest suitable appointment.
Yes. You can arrange an appointment for a family member, or someone you care for, just let us know when you get in touch. We’ll need their details and consent to complete the booking, unless you're their legal guardian or have power of attorney.
Your first consultation includes a detailed discussion of your symptoms, medical history, and lifestyle factors, followed by a thorough examination. It’s helpful if you can bring the results of any previous investigations with you, as well as a list of your current medications. Come with a comfortably full bladder so you can provide a urine sample if requested.