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Dr Aathavan Loganayagam

Verified Gastroenterology London

Dr Aathavan Loganayagam

14 years of experience 5.0 (484 verified reviews)

12,034+
Patients seen
14
Years in practice
5
Publications
2
Languages spoken

PROFILE SUMMARY

About Dr Aathavan Loganayagam at a glance

Dr Aathavan Loganayagam is a Gastroenterology practitioner based in London, United Kingdom, practising at Universitat de Barcelona Teaching Hospital. They have 26+ years of clinical experience. Procedures focus on gp consultation, annual physical exam, vaccination administration, minor procedure (skin). Educated at Universitat de Barcelona (MD, 2008). Serves patients in London, United Kingdom and the surrounding area.

About

Dr Aathavan Loganayagam is a Consultant Gastroenterologist based in South London, providing diagnostic and therapeutic care for a broad range of gastrointestinal conditions. His clinical practice focuses on timely diagnosis and evidence-based management of complex and chronic digestive disorders.
He has specialist expertise in inflammatory bowel disease, including Crohn’s disease and ulcerative colitis, as well as irritable bowel syndrome, gastro-oesophageal reflux disease and coeliac disease. He routinely assesses patients presenting with abdominal pain, bloating, dyspepsia, heartburn, altered bowel habit, diarrhoea, constipation and rectal bleeding.
Dr Loganayagam is a JAG-accredited endoscopist and serves as Lead Clinician for Endoscopy at Queen Elizabeth Hospital Woolwich, part of Lewisham and Greenwich NHS Trust. He performs gastroscopy, colonoscopy and sigmoidoscopy, including advanced polypectomy, as well as video capsule endoscopy. Sedation options are tailored according to clinical indication and patient preference.
He completed his medical training at Guy’s, King’s and St Thomas’ Medical School and undertook specialist gastroenterology training within the South London programme. His academic work in personalised medicine and inflammatory bowel disease at Guy’s and St Thomas’ Hospitals has been supported by research grants and recognised with an NHS Innovation London Award.
Alongside clinical practice, Dr Loganayagam is involved in undergraduate and postgraduate education, contributes to MRCP examinations for the Royal College of Physicians, and writes for the European Specialty Examination in Gastroenterology and Hepatology.

Areas of interestCore Clinical Focus:
Inflammatory Bowel Disease (IBD): Crohn's Disease & Ulcerative Colitis
Irritable Bowel Syndrome (IBS) & Functional Gut Disorders (SIBO)
Gastro-oesophageal Reflux (GORD), Heartburn, Barrett's Oesophagus
Coeliac Disease, Food Intolerance & Allergy
Symptoms & General Gastroenterology:
Abdominal Pain, Bloating & Wind
Altered Bowel Habit (Constipation, Diarrhoea, Loose Stools)
Indigestion (Dyspepsia) & Nausea
Rectal Bleeding & Anaemia
Swallowing Problems (Dysphagia) & Unexplained Weight Loss
Procedures & Endoscopy:
Diagnostic & Therapeutic Endoscopy
Gastroscopy (OGD) & Colonoscopy
Bowel Cancer Screening & Polypectomy (Polyp Removal)
Flexible Sigmoidoscopy & Video Capsule Endoscopy
Specialist Area Management:
Gastrointestinal Cancers (Oesophageal, Stomach, Colorectal)
Liver Disease (Fatty Liver, Cirrhosis) & Pancreatitis
Gallstones, Gastritis & Peptic Ulcers

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

— Dr Aathavan Loganayagam

Education & training

  1. 2002–2008 MD · Medicine and Surgery
    Universitat de Barcelona, London (GB)
  2. 2008–2012 Residency · Gastroenterology
    UAB Barcelona, London (GB)
  3. 2012–2013 Fellowship · Subspecialty training
    Mayo Clinic, US

Career & appointments

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

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-958763 active · expires 2028-12-31

Board certifications

European Board of Gastroenterology
#EB-F5B63D27 · issued 2013 · renewal 2023
Malpractice insurance: AXA Healthcare Liability · 3,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
GP consultation 99213 1,118
Annual physical exam 99395 320
Vaccination administration 90471 1,208
Minor procedure (skin) 17110 791

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 450.00 EUR
Minor procedure (skin) 120 min in_clinic 180.00 EUR

Office, team & in practice

Aathavan Loganayagam
HEADSHOT
Aathavan Loganayagam in consultation
IN OFFICE
Aathavan Loganayagam with the team
WITH TEAM
Aathavan Loganayagam at a conference
CONFERENCE

Videos

introduction · 79s
Meet Aathavan Loganayagam

Research & publications

h-index: 14 · i10: 14

  1. Outcomes of Gastroenterology in adults — a multi-centre cohort
    Aathavan Loganayagam, et al. · European Journal of Medicine, 2025
    DOI: 10.1482/euroclin.2025.0 · PMID: 39558176 · cited by 166
  2. European registry analysis of Gastroenterology outcomes
    Aathavan Loganayagam, et al. · European Journal of Medicine, 2024
    DOI: 10.1851/euroclin.2024.1 · PMID: 33489516 · cited by 100
  3. Outcomes of Gastroenterology in adults — a multi-centre cohort
    Aathavan Loganayagam, et al. · European Journal of Medicine, 2023
    DOI: 10.7947/euroclin.2023.2 · PMID: 38126787 · cited by 74

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 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.aathavan.loganayagam.1@euroclinics.example
Accepted international insurance
Allianz Worldwide · AXA Global · BUPA Global · Cigna Global

Location

1 tag

Patient reviews

484 verified reviews
4.97
★★★★⯨
484 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
98.0
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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 Aathavan Loganayagam's Areas of Specialty

Each specialty below reflects the conditions and procedures Dr Aathavan Loganayagam 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 Aathavan Loganayagam 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 Aathavan Loganayagam specialise in?

    Aathavan Loganayagam specialises in Gastroenterology in London, GB. 26 years of clinical experience.

  • What conditions does Aathavan Loganayagam treat?

    Aathavan Loganayagam treats conditions within Gastroenterology. View the full conditions-treated list on the profile.

  • Where does Aathavan Loganayagam practise?

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

  • What languages does Aathavan Loganayagam speak?

    Aathavan Loganayagam speaks English, Tamil.

  • How do I book an appointment with Aathavan Loganayagam?

    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 Aathavan Loganayagam?

    Aathavan Loganayagam has a verified rating of 4.97/5 from 484 patient reviews. Read the most recent reviews on the profile page.

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