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Professor Siwan Thomas-Gibson
Trust score 8/100

Professor Siwan Thomas-Gibson

Gastroenterology · London

👤 14 years of experience

10,199+ Patients seen
14 Years in practice
5 Publications
1 Languages spoken

About

Professor Siwan Thomas-Gibson is a leading expert in the field of gastrointestinal medicine, specialising in high-quality colonoscopy procedures and early colorectal neoplasia management. Accredited as a bowel cancer screening colonoscopist since 2007, she prioritises patient care. Her expertise encompasses various gastrointestinal conditions, including inflammatory bowel disease, irritable bowel syndrome, indigestion, and post-cancer treatment bowel symptoms, employing evidence-based approaches to diagnosis and treatment.
Recognised with the prestigious British Society of Gastroenterology Hopkins prize in 2018, Professor Thomas-Gibson has spearheaded initiatives to enhance safety and standards in endoscopy. An esteemed educator, she frequently contributes to national and international platforms. Appointed as a Chair at Imperial College London in 2020, she continues to make significant contributions to gastroenterological care, research, and education.

“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”

— Professor Siwan Thomas-Gibson

Education & training

  1. 2002–2008 MD · Medicine and Surgery
    UAB Barcelona, London (GB)
  2. 2008–2012 Residency · Gastroenterology
    Universidad de Navarra, London (GB)

Career & appointments

  1. 2012-09–2013-08 Junior consultant
    UAB Barcelona Teaching Hospital — Gastroenterology

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-743909 active · expires 2028-12-31

Board certifications

European Board of Gastroenterology
#EB-A1BA5C23 · issued 2013 · renewal 2023
Malpractice insurance: Generali Healthcare · 2,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
GP consultation 99213 258
Annual physical exam 99395 1,964
Vaccination administration 90471 2,460
Minor procedure (skin) 17110 275

Services & pricing

ServiceDurationModalityPrice
New patient consultation (60m) 60 min in_clinic|telemed 180.00 EUR
Follow-up consultation (30m) 30 min in_clinic|telemed|phone 90.00 EUR
Vaccination administration 30 min in_clinic 360.00 EUR
Minor procedure (skin) 120 min in_clinic 270.00 EUR

Office, team & in practice

Siwan Thomas-Gibson
HEADSHOT
Siwan Thomas-Gibson in consultation
IN OFFICE
Siwan Thomas-Gibson with the team
WITH TEAM
Siwan Thomas-Gibson at a conference
CONFERENCE

Videos

introduction · 132s
Meet Siwan Thomas-Gibson

Research & publications

h-index: 18 · i10: 6

  1. Validation of clinical scoring in Gastroenterology
    Siwan Thomas-Gibson, et al. · European Journal of Medicine, 2026
    DOI: 10.2254/euroclin.2026.0 · PMID: 33429690 · cited by 34
  2. Long-term follow-up of Gastroenterology across GB
    Siwan Thomas-Gibson, et al. · European Journal of Medicine, 2025
    DOI: 10.7950/euroclin.2025.1 · PMID: 32135268 · cited by 136

Invited talks

  • Practical updates in Gastroenterology European Annual Congress (Gastroenterology) · Vienna · 2024 · invited
  • Single-centre experience in Gastroenterology National Society Meeting · London · 2023 · oral abstract

Awards & memberships

Awards

  • 🏆 Top-rated Gastroenterology — London · EuroClinics Patient Choice · 2025 · regional

Society memberships

  • WONCA Europe — Family Doctors — Member · Since 2013
  • national college of family doctors — Member · Since 2013
  • European Union of Medical Specialists (UEMS) — Member · Since 2013

Articles by this doctor

  • Patient education Patient guide to Gastroenterology
  • Awareness When should you see a gastroenterology?

For international patients

Coordinator
Patient liaison · dr.siwan.thomas.gibson@euroclinics.example

Location

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Patient reviews

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Recent reviews

  • ★★★★★ ✓ Verified
    Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.
    Anna B.
  • ★★★★★ ✓ Verified
    Took time to listen and reviewed all my previous results. I would absolutely recommend.
    Marco V.
  • ★★★★☆ ✓ Verified
    Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.
    Helena F.

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