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Dr. Sebastian Zeki

Verified Gastroenterology London

Dr. Sebastian Zeki

2 years of experience 5.0 (24 verified reviews)

10,710+
Patients seen
2
Years in practice
9
Publications
2
Languages spoken

PROFILE SUMMARY

About Dr. Sebastian Zeki at a glance

Dr. Sebastian Zeki is a Gastroenterology practitioner based in London, United Kingdom, practising at Universitat de València Teaching Hospital. They have 25+ years of clinical experience. Procedures focus on gp consultation, annual physical exam, vaccination administration, minor procedure (skin). Educated at Universitat de València (MD, 2021). Serves patients in London, United Kingdom and the surrounding area.

About

Consultant Gastroenterologist specialising in acid reflux, Barrett’s oesophagus and swallowing disorders in London as well as a range of gastrointestinal conditions in the upper and lower gastrointestinal tract

Dr Sebastian Zeki works as a gastroenterologist at St Thomas' Hospital in London, one of the country's leading tertiary referral centres. In addition, he is a senior clinical lecturer at Kings College University and the Barts Cancer Institute.

He aims to provide his patients with a comfortable experience, whilst resolving their problems promptly. He treats patients with a variety of diseases, ensuring that the patients are at ease while explaining symptoms and their impact on their lives.

His special interests are:


Barrett's oesophagus

bloating

chest pain

chronic cough and throat clearing

dyspepsia

endoscopic cancer diagnosis and resection

food allergies

gastric cancer screening

high-quality endoscopy

hoarse voice

indigestion

irritable bowel syndrome

spastic disorders of the gut

swallowing disorders

Heartburn


Dr Zeki earned his medical degree in 2001 from Cambridge University and University College London.

He completed his postgraduate medical studies in London, as well as a PhD in the genomics of oesophageal cancer. His work was presented at national and international events and gained multiple awards from the British, European, and American Gastroenterological Societies. Following that, he pursued more clinical training as well as postdoctoral research at Addenbrooke's Hospital and the Medical Research Council Hutchison laboratory in Cambridge, as well as Jikei University Hospital in Tokyo.

His broad expertise has given him a unique skill set in the detection, diagnosis, and treatment of a variety of gastroenterological symptoms ranging from reflux to endoscopic cancer resections.

Dr Zeki has research interests in upper gastrointestinal cancer diagnosis and therapy, as well as the detection of their precursors. He also has a clinical and research interest in food allergies and their impact on the gut, which includes conditions such as eosinophilic oesophagitis, as well as oesophageal motility disorders and acid reflux-related problems.

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

— Dr. Sebastian Zeki

Education & training

  1. 2015–2021 MD · Medicine and Surgery
    Universitat de València, London (GB)
  2. 2021–2025 Residency · Gastroenterology
    Universidad Complutense de Madrid, London (GB)
  3. 2025–2026 Fellowship · Subspecialty training
    AP-HP Paris, FR

Career & appointments

  1. 2025-09–2026-08 Junior consultant
    Universitat de València Teaching Hospital — Gastroenterology

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-732942 active · expires 2028-12-31

Board certifications

European Board of Gastroenterology
#EB-226C1515 · issued 2026 · renewal 2036
Malpractice insurance: Generali Healthcare · 4,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
GP consultation 99213 949
Annual physical exam 99395 2,371
Vaccination administration 90471 2,491
Minor procedure (skin) 17110 2,892

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 720.00 EUR
Minor procedure (skin) 120 min in_clinic 630.00 EUR

Office, team & in practice

Sebastian Zeki
HEADSHOT
Sebastian Zeki in consultation
IN OFFICE
Sebastian Zeki with the team
WITH TEAM
Sebastian Zeki at a conference
CONFERENCE

Videos

introduction · 115s
Meet Sebastian Zeki

Research & publications

h-index: 6 · i10: 6

  1. Outcomes of Gastroenterology in adults — a multi-centre cohort
    Sebastian Zeki, et al. · European Journal of Medicine, 2025
    DOI: 10.9100/euroclin.2025.0 · PMID: 36222053 · cited by 21
  2. European registry analysis of Gastroenterology outcomes
    Sebastian Zeki, et al. · European Journal of Medicine, 2024
    DOI: 10.4688/euroclin.2024.1 · PMID: 34649363 · cited by 103
  3. Outcomes of Gastroenterology in adults — a multi-centre cohort
    Sebastian Zeki, et al. · European Journal of Medicine, 2023
    DOI: 10.4768/euroclin.2023.2 · PMID: 34003982 · cited by 57

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
  • 🏆 Excellence in Patient Care · National Society · 2024 · national
  • 🏆 Young Investigator Award · European Society · 2023 · international

Society memberships

  • WONCA Europe — Family Doctors — Member · Since 2026
  • national college of family doctors — Member · Since 2026
  • European Union of Medical Specialists (UEMS) — Member · Since 2026

Articles by this doctor

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

For international patients

Coordinator
Patient liaison · sebastian.zeki@euroclinics.example
Accepted international insurance
Allianz Worldwide · AXA Global · BUPA Global · Cigna Global

Location

1 tag

Patient reviews

24 verified reviews
4.99
★★★★⯨
24 reviews
5★ 2
4★ 1
3★ 0
2★ 0
1★ 0
Bedside Manner
5.0
Knowledge
5.0
Wait Time
4.7
Staff Friendliness
5.0
Ease Of Appointment
4.9
Value For Money
4.9
Would Recommend Pct
99.0
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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.

SPECIALTIES & PROCEDURES

Dr. Sebastian Zeki's Areas of Specialty

Each specialty below reflects the conditions and procedures Dr. Sebastian Zeki treats, with the size of the national pool of United Kingdom doctors offering the same care.

Gastroenterology

Digestive-tract conditions including reflux, IBS, IBD, liver disease and colorectal screening.

Dr. Sebastian Zeki is one of 792 gastroenterology doctors indexed in United Kingdom. Browse gastroenterology doctors in United Kingdom →

LOCAL CARE CONTEXT

Why local healthcare in London matters

Medical practice in United Kingdom is governed by country-specific licensing, professional standards, and patient-safety regulations. Practitioners listed here are registered with the relevant United Kingdom medical authority and operate within national rules on scope of practice, prescribing rights, and continuing professional development. Care delivered in London carries the additional benefits of local language support, in-person follow-up, and direct coordination with regional hospitals and labs. A verified profile means EuroClinics has cross-checked the practitioner or clinic against an official source (national medical register, public licence database, or the practitioner themselves), and that the data shown here matches that source as of the last verification date above.

Looking for additional providers? all doctors in London or all doctors in United Kingdom.

Frequently asked questions

Quick answers to the questions patients ask most. The same answers are surfaced to AI assistants via structured data.

  • What does Sebastian Zeki specialise in?

    Sebastian Zeki specialises in Gastroenterology in London, GB. 25 years of clinical experience.

  • What conditions does Sebastian Zeki treat?

    Sebastian Zeki treats conditions within Gastroenterology. View the full conditions-treated list on the profile.

  • Where does Sebastian Zeki practise?

    Sebastian Zeki practises in London, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • What languages does Sebastian Zeki speak?

    Sebastian Zeki speaks English, French.

  • How do I book an appointment with Sebastian Zeki?

    Use the "Request a booking" button on the profile to send an appointment request. Most appointments are confirmed within 24 hours; many slots are bookable instantly.

  • What do patients say about Sebastian Zeki?

    Sebastian Zeki has a verified rating of 4.99/5 from 24 patient reviews. Read the most recent reviews on the profile page.

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