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Dr Boon LimCardiology in Central London
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Dr Boon Lim

Cardiology in Central London, West London and W1G Marylebone London

Top Doctors Awards: 2017, 2018 and 2021
MB BChir(Hons) MA FRCP PhD
GMC: 4767042

5.040reviewsReview

Expert in:
Arrhythmia
Syncope
Atrial Fibrillation
Pacemaker
Cardiac (catheter) ablation
Implantable cardioverter defibrillator (ICD)
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Professional statement

Dr Boon Lim is one of London's leading cardiologists and electrophysiologists. He specialises in heart rhythm disturbances, pacing and syncope at Imperial College and at his Harley Street clinic. He leads the established Imperial Syncope Diagnostic Service at Hammersmith Hospital and is frequently invited to national and international meetings to share his experience. He has a special interest in the mapping and ablation of atrial fibrillation (AF) and is highly-skilled at using modern 3-D mapping technologies.

Dr Lim has been awarded the prestigious Top Doctors Award in each of it's editions in 2017, 2018, and 2019-20. The Top Doctors Awards are peer-nominated by other medical specialists of the doctors that they would recommend to friends and family in times of medical need.

Dr Lim was awarded several distinguished prizes during his medical training at Cambridge University where he obtained a double First Class Honours Degree. He has continued his passion for education and research serving as an Honorary Senior Lecturer at Imperial College where he supervises several PhD students. He is very actively engaged in all aspects of research with a particular interest in developing the best techniques for treating atrial fibrillation. He is invited to speak both nationally and internationally to discuss his findings and to teach other physicians about the best techniques for complex mapping and ablation of atrial fibrillation and other complex arrhythmias.

He leads a very active syncope research team based at the Imperial Syncope Diagnostic Unit and is looking to improve healthcare delivery for patients through use of effective online education to help improve the quality of life for patients across the UK. 

Dr Lim is the author of the Penguin Life Experts book 'Keeping Your Heart Healthy' published in September 2021.

Clinics

Welbeck Heart Health
  • Welbeck Heart Health profile image

    Welbeck Heart Health

    Central London, 1 Welbeck St, London W1G 0AR, UK

    Medical insurances accepted

    I'm paying for myself
    Bupa
    AXA
    Cigna
    WPA
    Simply Health
    Allianz
    CS Healthcare

Credentials

Professional experience

  • 26 years of experience
  • Consultant Cardiologist and Electrophysiologist and Clinical Lead for the Imperial Syncope Diagnostic Unit, Hammersmith Hospital, London (present)
  • Consultant Cardiologist and Electrophysiologist, Welbeck Heart Health (present)
  • Consultant Cardiologist, the West Middlesex University Hospital NHS Trust (present)
View more

Subspecialties

  • Atrial fibrillation
  • Syncope
  • Ablation therapy for arrhythmias
View more

Professional memberships

  • The British Cardiovascular Society

Education

  • MRCP (2003)
  • Cardiology training at top tertiary centres in Oxford and Northwest London based at St Mary’s, Hammersmith and the Heart Hospital in central London
  • University of Cambridge, MB BChir (Double First Class Honours), MA,
  • PhD in Cardiac Electrophysiology at Imperial College London (2011)
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Teaching posts

  • Honorary Senior Lecturer, Imperial College London (2011 - present)
  • Medical PhD Supervisor, Imperial College London
  • Faculty member and Lecturer, St Jude Medical International Board of Heart Rhythm Examiners (IBHRE)
View more

Positions in organisations

  • British Cardiovascular Society Reviewer for 2018 European Society of Cardiology Guidelines
  • Medical Advisory Committee, Syncope Trust and Reflex Anoxic Seizures (STARS) Charity
  • Medical Advisory Committee, Atrial Fibrillation Association (AFA) Charity
View more

Publications and conferences

  • Syncope: Scope of the problem and setting up a syncope clinic. Lecture at Annual Finapress International Meeting Dec 2016, Chandos House, London
  • New mapping technologies for atrial fibrillation (AF) - Rhythmia. Lecture and Faculty at Europe AF meeting, Nov 2016, London.
  • Use of Rhythmia for AF and AT mapping. Lecture and Faculty Member at Heart Rhythm Congress, Oct 2016, Birmingham
  • Non-invasive mapping of arrhythmias. Lecture at Heart Rhythm Congress, Oct 2016, Birmingham
  • Syncope research:
  • Predicting Vasovagal Syncope from Heart Rate and Blood Pressure: A Prospective Study in 140 Subjects. (2018)
  • 2018 ESC Guidelines for the diagnosis and management of syncope. (2018)
  • Diagnostic role of head-up tilt test in patients with cough syncope. (2016)
  • A long-term follow-up of patients with prolonged asystole of greater than 15s on head-up tilt testing. (2016)
  • Diagnostic algorithm for syncope. (2014) 
  • Ivabradine in treatment of sinus tachycardia mediated vasovagal syncope. (2014)
  • Atrial fibrillation and complex mapping of arrhythmia research: 
  • Isthmus sites identified by Ripple Mapping are usually anatomically stable: A novel method to guide atrial substrate ablation? (2018)
  • High-Density Electroanatomical Mapping to Identify Point of Epicardial to Endocardial Breakthrough in Perimitral Flutter. (2017)
  • The sawtooth EKG pattern of typical atrial flutter is not related to slow conduction velocity at the cavotricuspid isthmus. (2017)
  • Cavotricuspid-Isthmus Dependent Flutter or Left-Sided Atrial Tachycardia? (2017)
  • Microreentrant left atrial tachycardia circuit mapped with an ultra-high-density mapping system. (2017)
  • Spatial Resolution Requirements for Accurate Identification of Drivers of Atrial Fibrillation. (2017)
  • Visualizing Localized Reentry With Ultra-High Density Mapping in Iatrogenic Atrial Tachycardia: Beware Pseudo-Reentry. (2017)
  • Rotor Tracking Using Phase of Electrograms Recorded During Atrial Fibrillation. (2017)
  • A Prospective Study of Ripple Mapping in Atrial Tachycardias: A Novel Approach to Interpreting Activation in Low-Voltage Areas. (2016) 
  • Application of ripple mapping with an electroanatomic mapping system for diagnosis of atrial tachycardias. (2013) 
  • Research in other subjects: 
  • Atrioventricular Optimized Direct His Bundle Pacing Improves Acute Hemodynamic Function in Patients With Heart Failure and PR Interval Prolongation Without Left Bundle Branch Block. (2018)
  • Mapping Signatures of Ventricular Ectopic Activity of Endocavitary Origin. (2018)
  • Basic life support education in secondary schools: a cross-sectional survey in London, UK. (2017) 
  • The changing face of cardiovascular disease 2000-2012: An analysis of the world health organisation global health estimates data. (2016) 
  • A Prospective Study of Ripple Mapping the Post-Infarct Ventricular Scar to Guide Substrate Ablation for Ventricular Tachycardia. (2016)
  • A technique for visualising three-dimensional left atrial cardiac activation data in two dimensions with minimal distance distortion. (2015)
  • Automated fiducial point selection for reducing registration error in the co-localisation of left atrium electroanatomic and imaging data. (2015) 
  • Focal Arrhythmia Ablation Determined by High-Resolution Noninvasive Maps: Multicenter Feasibility Study. (2015)
  • Noninvasive electrocardiographic mapping to guide ablation of outflow tract ventricular arrhythmias. (2014) 
  • Electrophysiology and ablation of arrhythmias. (2013) 
  • Research into the autonomic nervous system: 
  • Ablation therapy for left atrial autonomic modification. (2016) 
  • Dissociated pulmonary vein potentials: Expression of the cardiac autonomic nervous system following pulmonary vein isolation? (2015) 
  • The left atrial neural network: more complicated than we thought? (2015)
  • Characterization of the left atrial neural network and its impact on autonomic modification procedures. (2013) 
  • Feasibility of multiple short, 40-s, intra-procedural ECG recordings to detect immediate changes in heart rate variability during catheter ablation for arrhythmias. (2011) 
View more

Prizes and awards

  • Top prize President’s Medal for Cardiology at the Royal Society of Medicine
  • Lindo Foundation Prize at St Mary’s Hospital
  • Runner-up in the Young Investigator Award for the British Cardiovascular Society
  • Michelle Prize for Medicine, the Hoechst Marion Rousell Prize and the Sir Richard Stapley Scholarship awarded at Cambridge University
  • Double First Class Honours at Cambridge University
  • Top Doctors Doctor of the Year 2017
View more

Languages spoken

  • English
Registration number: 4767042

Reviews

All reviews are from real patients and have been verified by our Customer Service department to ensure they meet our guidelines. Rules of the service

40 reviews

5.0

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  • I had a great consultation with Dr Lim today. I have recently been diagnosed with paroxysmal AF and am awaiting a cardiac ablation procedure. Dr Lim is an extremely competent, knowledgeable, and compassionate cardiologist. He listened to all my concerns and explained the procedure very well to my wife and me. He even provided a letter for the airline so that I can postpone my travels until my condition is stable. Today I felt reassured and in good hands. I can highly recommend Dr Lim to anyone.
    10 February 2026

    G.T.

    Verified patient
  • Dr. Lim is a very intelligent, kind, compassionate Cardiologist. He truly listens and explains things well. Helped me a great deal in explaining nervous system being out of sync due to trauma. Helped me understand connection to Paroxysmal Afib. I would highly recommend him.
    29 November 2025

    C.H.

    Verified patient
  • 9 September 2025

    S.K.

    Verified patient
  • Dr Boon Lim and his team provided a first rate experience for AF ablation. Dr Boon Lim took time to discuss in depth the procedure and answer all my questions thoroughly and diligently before and after the procedure. I felt safe and secure with his leadership and surgical skill.
    9 September 2025

    D.B.

    Verified patient
  • Dr Boon has been amazing over the past two years. He always listened, explained everything clearly, and truly cared. My heart ablation was a complete success, and I’m so grateful for his skill and compassion. Highly recommend! look no further! I'll be forever greatful to him.
    4 September 2025

    N.W.

    Verified patient
  • Dr Boon Lim is an extraordinary cardiologist. I really can't speak high enough of both the consultations and the recent surgery that he has performed on me. An absolute superstar
    14 April 2025

    J.B.

    Verified patient
  • It was a pleasure seeing Dr Boon Lim yesterday, he is thorough, understanding and ensures that he provides a clear explanation of the situation, he also cares and that is a great quality, I would highly recommend.
    28 March 2025

    A.A.

    Verified patient
  • Dr Lim took me on as a patient in a critical situation. Went above and beyond to both put me at ease and support me going forwards. A true expert in his field with exceptional knowledge, communication and compassion.
    22 March 2025

    J.S.

    Verified patient
  • Dr Boon Lim is a gifted and highly skilled physician and communicator. His holistic approach to my treatment has been life changing - not only in regard to my cardiac health but to all aspects of my outlook on life.
    20 March 2025

    S.B.

    Verified patient
  • I cannot recommend Dr Boon Lim highly enough. He is extremely professional and personable. He has a well trained and friendly team supporting him who all put me at ease for my ablation procedure. To sum up cool, competent and caring.
    28 January 2025

    D.B.

    Verified patient
View all reviews

Treatments

The doctor is expert in

Arrhythmia

Atrial Fibrillation

Cardiac (catheter) ablation

Implantable cardioverter defibrillator (ICD)

Pacemaker

Syncope

The doctor also specialises in:

Angina

Atherosclerosis

Atrial fibrillation ablation

Blood pressure test

Brugada syndrome

Cardiovascular disease

Catheter

Chest pain

Cholesterol

Coronary heart disease

Frequently Asked Questions

What is Dr Boon Lim's specialty?

Dr Boon Lim is a consultant specialising in Cardiology, with extensive experience in assessing and treating patients within this field.

Which conditions and treatments does Dr Boon Lim specialise in?

Dr Boon Lim is a cardiologist who provides assessment and treatment for Arrhythmia, Syncope, Atrial Fibrillation, Pacemaker, Cardiac (catheter) ablation and Implantable cardioverter defibrillator (ICD). During your consultation, you will be informed of the most suitable options following a personalised evaluation.

How many years of experience does Dr Boon Lim have?

Dr Boon Lim has 26 years of professional experience as a consultant cardiologist, providing specialist assessment and treatment in this medical field.

What do patients say about Dr Boon Lim?

Patients give a rating of 5.0 out of 5 to Dr Boon Lim, a score considered excellent. This average is based on 40 verified patient reviews, reflecting the experience of those who have attended an appointment.

Are Dr Boon Lim's reviews verified?

Yes. All Dr Boon Lim's reviews come from verified patients who have attended either an in-person or an e-Consultation appointment. We use a system that ensures authenticity and prevents fake reviews. Some profiles may also display reviews from other platforms, which follow their own verification policies, with the source always clearly indicated.

Where does Dr Boon Lim practise?

Dr Boon Lim practices in the following locations:

  • Central London at 1 Welbeck St, London W1G 0AR, UK
  • West London at Hammersmith Hospital, Du Cane Rd, White City

In-person consultations are available at these locations as a Cardiology.

How can I book an appointment with Dr Boon Lim?

You can book an appointment with Dr Boon Lim directly from this page by selecting the time that suits you best. Alternatively, you can call the phone number shown if you prefer personalised assistance.

Does Dr Boon Lim see NHS patients?

Many specialists featured on Top Doctors also hold NHS positions. However, appointments arranged for Dr Boon Lim through this platform are private, either self-pay or covered by private medical insurance.

Does Dr Boon Lim offer private appointments?

Yes, Dr Boon Lim offers private appointments for patients seeking flexible and direct access to a consultant cardiologist.

Does Dr Boon Lim offer online consultations?

Yes, Dr Boon Lim offers online consultations. You can book an appointment directly from this page by selecting the date and time that suit you best. Personalised assistance is also available by calling the number displayed on this page.

Does Dr Boon Lim accept insurance?

Dr Boon Lim works with the following private medical insurance providers: Bupa, AXA, Cigna, WPA, Simply Health, Allianz, CS Healthcare, Vitality, The Exeter Friendly and Pru Health. If your insurer is not listed, you may contact the practice directly to confirm your coverage.

What is Dr Boon Lim's availability?

Dr Boon Lim's availability depends on the appointment slots open at any given time. On this page, you can check current availability, and if no slots are shown, you can request an appointment or contact the practice directly.

What payment methods does Dr Boon Lim offer?

You can pay for your consultation with Dr Boon Lim using the following methods: Self-paying.

What languages does Dr Boon Lim speak?

Dr Boon Lim is a cardiologist who offers consultations in English.

How is Dr Boon Lim selected to appear on this platform?

All doctors listed on Top Doctors, including Dr Boon Lim, undergo our rigorous selection process. Only one in five specialists meets the required standards to be included.
Discover Top Doctors' rigorous medical selection process.
The doctor, or where applicable the hospital or medical centre in which the doctor provides services, undertakes to keep the information relating to the prices of services published on their profile on the Top Doctors platform up to date at all times, ensuring that such prices correspond to those effectively charged to patients. In the event of any discrepancy between the published price and the price ultimately charged to the patient, the doctor and/or the relevant hospital or medical centre shall be solely liable towards the patient and towards Top Doctors for any claim or financial difference arising therefrom.

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Welbeck Heart HealthCentral London, 1 Welbeck St, London W1G 0AR, UK
Payment methodSelf-paying

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