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Dr Karthik Viswanathan

Cardiology West Yorkshire

Dr Karthik Viswanathan

6 years of experience

3,989+
Patients seen
6
Years in practice
3
Publications
4
Languages spoken

PROFILE SUMMARY

About Dr Karthik Viswanathan at a glance

Dr Karthik Viswanathan is a Cardiology practitioner based in West Yorkshire, United Kingdom, practising at Universitat de Barcelona Teaching Hospital. They have 27+ years of clinical experience. Procedures focus on cardiac consultation, echocardiogram, stress test, holter monitor, coronary angiography. Educated at Universitat de Barcelona (MD, 2016). Serves patients in West Yorkshire, United Kingdom and the surrounding area.

About

Dr Viswanathan is a consultant cardiologist practising at the Circle Huddersfield hospital since 2018. His NHS practice is based jointly at Calderdale Royal Hospital and Huddersfield Royal Infirmary where he is currently Clinical Lead for Cardiology.



Previously, Dr Viswanathan has worked as a Consultant in two large teaching hospitals - the Freeman Hospital in Newcastle-upon-Tyne and the Royal Brompton and Harefield Hospital in London. He has also previously completed a Fellowship in Cardiac Electrophysiology at the prestigious Toronto General Hospital, UHN, Toronto, Canada and the Certified Electrophysiology Specialist (CEPS) accreditation recognised by International Board of Heart Rhythm Examiners (IBHRE), USA.



Dr Viswanathan has substantial experience in managing patients across the full spectrum of cardiac illnesses and runs two general cardiology outpatient NHS clinics every week. He also has subspecialist expertise in managing all types of cardiac rhythm abnormalities or arrhythmias and patients with cardiomyopathies. He currently performs implantation of all cardiac electrical devices, ranging from loop recorders (Linq devices), pacemakers and defibrillators (including cardiac resynchronisation therapy devices).



Dr Viswanathan established a multi-professional Arrhythmia clinic in 2017 that he currently runs every week for the local population served by Calderdale and Greater Huddersfield CCGs- dedicated to providing holistic care via a one-stop clinic for patients diagnosed with supraventricular tachycardia, atrial flutter and atrial fibrillation. This award-winning service has been recognised nationally for its excellent patient outcomes. He also runs an Inherited Cardiomyopathy clinic locally that he established in 2019 in conjunction with the regional service based at Leeds.



Dr Viswanathan is passionate about encouraging patient choice and participation in decision-making and has been instrumental in setting up Patient support groups locally. He is also very active in designing and delivering education and training for aspiring cardiologists, GPs and allied health professionals, both locally and regionally.

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

— Dr Karthik Viswanathan

Education & training

  1. 2010–2016 MD · Medicine and Surgery
    Universitat de Barcelona, West Yorkshire (GB)
  2. 2016–2020 Residency · Cardiology
    UAB Barcelona, West Yorkshire (GB)
  3. 2020–2021 Fellowship · Subspecialty training
    Mayo Clinic, US

Career & appointments

  1. 2020-09–2021-08 Junior consultant
    Universitat de Barcelona Teaching Hospital — Cardiology

Licenses & insurance

Medical licenses

GB — Organización Médica Colegial de España (OMC)
#GB-789424 active · expires 2028-12-31

Board certifications

European Board of Cardiology
#EB-70272D79 · issued 2021 · renewal 2031
Malpractice insurance: Allianz Professional · 5,000,000 EUR coverage · No claims on file

Procedures performed

ProcedureCodeLifetime count
Cardiac consultation 99244 52
Echocardiogram 93306 123
Stress test 93015 2,901
Holter monitor 93225 2,592
Coronary angiography 93454 1,799
PCI / coronary stent 92928 1,977
Pacemaker implantation 33208 2,858

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 480.00 EUR
Holter monitor 60 min in_clinic 1,080.00 EUR
Coronary angiography 90 min in_clinic 720.00 EUR
PCI / coronary stent 30 min in_clinic 960.00 EUR

Office, team & in practice

Karthik Viswanathan
HEADSHOT
Karthik Viswanathan in consultation
IN OFFICE
Karthik Viswanathan with the team
WITH TEAM
Karthik Viswanathan at a conference
CONFERENCE

Videos

introduction · 88s
Meet Karthik Viswanathan

Research & publications

h-index: 4 · i10: 5

  1. Outcomes of Cardiology in adults — a multi-centre cohort
    Karthik Viswanathan, et al. · European Heart Journal, 2025
    DOI: 10.8715/euroclin.2025.0 · PMID: 31330510 · cited by 150
  2. European registry analysis of Cardiology outcomes
    Karthik Viswanathan, et al. · JACC, 2024
    DOI: 10.7539/euroclin.2024.1 · PMID: 34269852 · cited by 36

Invited talks

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

Awards & memberships

Awards

  • 🏆 Top-rated Cardiology — West Yorkshire · EuroClinics Patient Choice · 2025 · regional

Society memberships

  • European Society of Cardiology (ESC) — Member · Since 2021
  • American Heart Association (AHA) — Member · Since 2021
  • EAPCI — Member · Since 2021
  • European Union of Medical Specialists (UEMS) — Member · Since 2021

Articles by this doctor

  • Patient education Patient guide to Cardiology
  • Awareness When should you see a cardiology?

For international patients

Coordinator
Patient liaison · dr.karthik.viswanathan@euroclinics.example

Location

1 tag

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.

SPECIALTIES & PROCEDURES

Dr Karthik Viswanathan's Areas of Specialty

Each specialty below reflects the conditions and procedures Dr Karthik Viswanathan 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 Karthik Viswanathan is one of 1,358 cardiology doctors indexed in United Kingdom. Browse cardiology doctors in United Kingdom →

LOCAL CARE CONTEXT

Why local healthcare in West Yorkshire 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 West Yorkshire 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 West Yorkshire 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 Karthik Viswanathan specialise in?

    Karthik Viswanathan specialises in Cardiology in West Yorkshire, GB. 27 years of clinical experience.

  • What conditions does Karthik Viswanathan treat?

    Karthik Viswanathan treats conditions within Cardiology. View the full conditions-treated list on the profile.

  • Where does Karthik Viswanathan practise?

    Karthik Viswanathan practises in West Yorkshire, GB. The profile page lists all practice addresses, phone numbers, and clinic affiliations.

  • What languages does Karthik Viswanathan speak?

    Karthik Viswanathan speaks English, Hindi, Tamil, Urdu.

  • How do I book an appointment with Karthik Viswanathan?

    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.

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