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Dr Gajen Sunthar Kanaganayagam

Verified Cardiology London

Dr Gajen Sunthar Kanaganayagam

13 years of experience 5.0 (244 verified reviews)

6,141+
Patients seen
13
Years in practice
8
Publications
1
Languages spoken

PROFILE SUMMARY

About Dr Gajen Sunthar Kanaganayagam at a glance

Dr Gajen Sunthar Kanaganayagam is a Cardiology practitioner based in London, United Kingdom, practising at Universidad de Navarra Teaching Hospital. They have 19+ years of clinical experience. Procedures focus on cardiac consultation, echocardiogram, stress test, holter monitor, coronary angiography. Educated at Universidad de Navarra (MD, 2009). Serves patients in London, United Kingdom and the surrounding area.

VERIFIED PHYSICIAN PROFILE · UPDATED MAY 2026

About

Dr Kanaganayagam is a consultant cardiologist who works at Imperial College NHS Trust and Chelsea and Westminster NHS Trust. He sees patients who have chest pain, shortness of breath, palpitations, dizziness, leg swelling and for cardiac risk management. He manages a broad range of conditions such as coronary artery disease, valve disease, arrhythmias and heart failure, as well as hypertension and high cholesterol.

Dr Kanaganayagam is the head of cardiology imaging at Chelsea and Westminster Hospitals, and is very experienced in CT coronary angiography (with calcium score), stress echocardiography, transoesophageal echocardiography and cardiac MRIs. He regularly performs cardiology imaging for his and other heart specialists' patients to help manage their conditions. He initiated a large Community Heart Failure service at Imperial and continues to care for patients with both reduced and preserved systolic function (HFPEF and HFREF), as well as other complex conditions. His passion for high quality care is reflected in his previous role as one of three Directors of Quality and Safety across Imperial and his position on the Executive Management Board.

Dr Kanaganayagam is involved in cardiovascular research, and he has written a number of review papers and delivered lectures on cardiac CT, echocardiography, and cardiac MRI both in the UK and abroad. He is also an honorary senior lecturer in cardiology at Imperial College.

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

— Dr Gajen Sunthar Kanaganayagam

Education & training

  1. 2003–2009 MD · Medicine and Surgery
    Universidad de Navarra, London (GB)
  2. 2009–2013 Residency · Cardiology
    Universidad Complutense de Madrid, London (GB)
  3. 2013–2014 Fellowship · Subspecialty training
    AP-HP Paris, FR

Career & appointments

  1. 2013-09–2014-08 Junior consultant
    Universidad de Navarra Teaching Hospital — Cardiology

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-361190 active · expires 2028-12-31

Board certifications

European Board of Cardiology
#EB-06378E21 · issued 2014 · renewal 2024
Malpractice insurance: AmTrust Europe · 3,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
Cardiac consultation 99244 414
Echocardiogram 93306 1,193
Stress test 93015 1,279
Holter monitor 93225 1,978
Coronary angiography 93454 1,565
PCI / coronary stent 92928 2,395
Pacemaker implantation 33208 2,680

Services & pricing

ServiceDurationModalityPrice
New patient consultation (60m) 60 min in_clinic|telemed 240.00 EUR
Follow-up consultation (30m) 30 min in_clinic|telemed|phone 120.00 EUR
Stress test 30 min in_clinic 1,080.00 EUR
Holter monitor 60 min in_clinic 480.00 EUR
Coronary angiography 90 min in_clinic 360.00 EUR
PCI / coronary stent 30 min in_clinic 600.00 EUR

Office, team & in practice

Gajen Sunthar Kanaganayagam
HEADSHOT
Gajen Sunthar Kanaganayagam in consultation
IN OFFICE
Gajen Sunthar Kanaganayagam with the team
WITH TEAM
Gajen Sunthar Kanaganayagam at a conference
CONFERENCE

Videos

introduction · 102s
Meet Gajen Sunthar Kanaganayagam

Research & publications

h-index: 5 · i10: 14

  1. Outcomes of Cardiology in adults — a multi-centre cohort
    Gajen Sunthar Kanaganayagam, et al. · European Heart Journal, 2025
    DOI: 10.3758/euroclin.2025.0 · PMID: 34711234 · cited by 76
  2. European registry analysis of Cardiology outcomes
    Gajen Sunthar Kanaganayagam, et al. · JACC, 2024
    DOI: 10.5546/euroclin.2024.1 · PMID: 39886373 · cited by 94
  3. Outcomes of Cardiology in adults — a multi-centre cohort
    Gajen Sunthar Kanaganayagam, et al. · European Heart Journal, 2023
    DOI: 10.4899/euroclin.2023.2 · PMID: 33541755 · cited by 104

Invited talks

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

Awards & memberships

Awards

  • 🏆 Top-rated Cardiology — London · EuroClinics Patient Choice · 2025 · regional
  • 🏆 Excellence in Patient Care · National Society · 2024 · national
  • 🏆 Young Investigator Award · European Society · 2023 · international

Society memberships

  • European Society of Cardiology (ESC) — Member · Since 2014
  • American Heart Association (AHA) — Member · Since 2014
  • EAPCI — Member · Since 2014
  • European Union of Medical Specialists (UEMS) — Member · Since 2014

Articles by this doctor

  • Patient education Patient guide to Cardiology 2026-03-17 · 4 min read
  • Awareness When should you see a cardiology? 2026-01-13 · 5 min read

For international patients

Coordinator
Patient liaison · dr.g.sunthar.kanaganayagam@euroclinics.example
Accepted international insurance
Allianz Worldwide · AXA Global · BUPA Global · Cigna Global

Location

1 tag

Patient reviews

244 verified reviews
4.97
★★★★⯨
244 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 Gajen Sunthar Kanaganayagam's Areas of Specialty

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

Cardiology

Heart-rhythm, coronary and structural-heart problems including chest pain, palpitations, hypertension and heart failure.

Dr Gajen Sunthar Kanaganayagam is one of 1,358 cardiology doctors indexed in United Kingdom. Browse cardiology 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 Gajen Sunthar Kanaganayagam specialise in?

    Gajen Sunthar Kanaganayagam specialises in Cardiology in London, GB. 19 years of clinical experience.

  • What conditions does Gajen Sunthar Kanaganayagam treat?

    Gajen Sunthar Kanaganayagam treats conditions within Cardiology. View the full conditions-treated list on the profile.

  • Where does Gajen Sunthar Kanaganayagam practise?

    Gajen Sunthar Kanaganayagam practises in London, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • What languages does Gajen Sunthar Kanaganayagam speak?

    Gajen Sunthar Kanaganayagam speaks English.

  • How do I book an appointment with Gajen Sunthar Kanaganayagam?

    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 Gajen Sunthar Kanaganayagam?

    Gajen Sunthar Kanaganayagam has a verified rating of 4.97/5 from 244 patient reviews. Read the most recent reviews on the profile page.

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