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Dr Jonathan Byrne

PhD MB ChB MRCP

Cardiologist

30 years of experience

Belgravia, SW1X 7HY

(+2 more)

29 connections in healthcare

Skill endorsed

by Dr Aamir Ali, Mr Christos Tolias and 8 other professionals

4.96

/5

(77 reviews)

30 years of experience

Belgravia, SW1X 7HY

(+2 more)

29 connections in healthcare

Skill endorsed

by Dr Aamir Ali, Mr Christos Tolias and 8 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Echocardiogram (Cardiac Ultrasound)
15
Coronary Artery Disease
13
1
Heart Valve Problems
12
2

Contact

Book


Expert in:

About Dr Jonathan Byrne

Dr Jonathan Byrne, Consultant Cardiologist, is currently working within King's College Hospital, he has been working within this Trust since 2008. He is highly specialised in all matters of cardiology including the assessment and treatment of coronary and valvular heart disease, hypertension, heart rhythm disturbances, patients with angina, and heart failure. He is also an interventional cardiologist with a specific interest in the treatment of coronary artery disease – using angioplasty and stents. He also uses novel non-surgical therapies for patients with valvular heart disease, such as TAVI (transcatheter aortic valve implantation) and Mitraclip (percutaneous treatment of the mitral valve). He also carries out several imaging tests including transoesophageal echocardiography and cardiac CT scanning.

Dr Byrne began his medical education in Bristol where he graduated with his undergraduate medical degree, he then progressed to do his foundation years in the South East of England and London. During his training he undertook a research degree within the Department of Cardiology at King's College Hospital, resulting in him being awarded a PhD for his efforts. He completed his Higher Specialty Training in Interventional Cardiology King's College Hospital and Undertook training with a transesophageal echocardiography and cardiac CT scanning fellowship in Canada. He has thrived in his consultant position pioneering the use of novel percutaneous techniques to treat aortic and mitral valve disease.

Dr Byrne is also an active researcher, engaging in research focused on the molecular mechanisms which underlie the development of left ventricular hypertrophy, the application of coronary physiology in an interventional setting, and the differences and potential advantages of intervention performed from the radial artery.


Subspecialties

  • Electrophysiology
  • Interventional Cardiology

Areas of expertise

All
Reviews
(83)
Skill Endorsements
(56)

Click the bar to read reviews or skill endorsements

Echocardiogram (Cardiac Ultrasound)
15
Coronary Artery Disease
13
1
Heart Valve Problems
12
2
Atrial Fibrillation
8
2
ECG (Electrocardiogram)
5
3
Arrhythmia (Irregular Heartbeat)
5
2
CT Coronary Angiogram
7
Heart Failure
6
Congestive Heart Failure
4
Percutaneous Mitral Valve Repair
1
3
Cardiovascular Disease
3
Chest Pain
3
High Blood Pressure
3
Valvular Heart Disease
3
Heart Attack
2
1
Transcatheter Aortic Valve Implantation (TAVI)
1
2
Video Consultation
2
Exercise Stress Test
2
Coronary Stent Insertion
1
1
Unstable Angina
2
ECG Holter Monitor
2
24 Hour Blood Pressure Monitor
2
Loss of Consciousness
1
Dizziness
1
Tachycardia
1
Angiogram
1
Angioplasty
1
Atherosclerosis
1
Angina
1
Valvuloplasty
1
Cardio-Pulmonary Exercise Testing
1
Cardiac Rehabilitation
1
Coronary Angiography
1
Inherited Cardiac Conditions
1
Hypertrophic Cardiomyopathy
1
Acute Coronary Syndrome (ACS)
1
Adult Congenital Heart Disease
1
Heart Murmurs
1
Fetal Cardiology
1
Heart Scan
1
Heart Muscle Disease
1
Ischaemic Heart Disease
1
Atrial Septal Defects (ASD)
Bradycardia
Cardiac MRI (CMR)
Cardiac Pacing
Cardiomyopathy
Myocardial Perfusion Scan
Pacemaker Surgery
Pacemakers
Pulmonary Hypertension
Transoesophageal Echocardiogram
Ventricular Fibrillation
Ventricular Septal Defects (VSD)

Registered with

General Medical Council

No. 4183161


Education

University of Bristol

Medicine

Graduated 1995


Qualifications

Education

  • MB Chb - University of Bristol
  • PhD - University of London - 2004

Memberships

  • British Cardiac Society
  • British Cardiovascular Intervention Society

Languages spoken

  • English

Insurers

  • Aviva Health
  • Bupa
  • Allianz Worldwide Care
  • WPA
  • Vitality
  • Freedom Health Insurance
  • Cigna
  • Simply Health (Dental)
  • The Exeter
  • Bupa Fee Assured
  • General and Medical
  • Healix Health Services
  • Saga Health Insurance

Fees

  • New appointment

    £345
  • Follow-up appointment

    £230
*May vary on location

Locations

Cleveland Clinic London

33 Grosvenor Place, Belgravia, United Kingdom, SW1X 7HY

4.85(2847 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Paid Parking
View practice profile

Opening hours

Monday - Friday
Saturday
Sunday

Facilities

Wheelchair Accessible
Paid Parking
View practice profile

Cleveland Clinic Portland Place Outpatient Centre

24 Portland Pl, London, United Kingdom, W1B 1LU

4.85(1975 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Cleveland Clinic Moorgate Outpatient Centre

Cleveland Clinic Moorgate Outpatient Centre, 55 Moorgate, London, United Kingdom, EC2R 6BH

4.84(658 reviews)

Opening hours

Monday - Friday
Saturday
Sunday

Areas of expertise

All
Reviews
Skill Endorsements
Echocardiogram (Cardiac Ultrasound)
15
Coronary Artery Disease
13
1
Heart Valve Problems
12
2

Contact

Book

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Dr Jonathan Byrne is professional in his dealings with patients. He gives clear details on tests, diagnoses, and treatment plans. Patients note his good communication, care, and reassuring manner for their comfort and understanding. Key areas cover echocardiograms, coronary artery disease, and heart valve problems.

5
verified patient
13 Jun 2026

Excellent

5
verified patient
04 Jun 2026

very good advice as usual

5
verified patient
23 May 2026

Cleveland Clinic was spotless, efficient and calm, as usual! Dr Byrne was friendly, efficient - an excellent consultation again. Thoroughly recommend him for cardiac treatments

5
verified patient
23 May 2026

Dr Byrne was extremely helpful in fitting me into his surgery list, and thereafter performing the operation I highly recommend consulting him

5
verified patient
14 May 2026

Very informative about the next stepn in the treatment of my leaking heart valve.

Patient seen for:
5
verified patient
14 May 2026

Good bedside manner. Listened to complaints.

Patient seen for:
5
verified patient
01 May 2026

Very informative and clear as to what the next step is to take place.

Patient seen for:
Reply from Jonathan Byrne
04 May 2026
avatar-image

Thank you very much. I'm glad I was able to help and explain things clearly

5
verified patient
01 May 2026

Wonderful attention concise information addressed my concerns. Exponentially professional clarity on my prognosis

Patient seen for:
Reply from Jonathan Byrne
04 May 2026
avatar-image

Thank you so much. I appreciate the lovely feedback

5
verified patient
30 Apr 2026

The way follow up appointments and tests are handled is impressive.

Patient seen for:
Reply from Jonathan Byrne
04 May 2026
avatar-image

Thank you very much for your kind words

5
verified patient
16 Apr 2026

Very easy to talk to and clear communications

Reply from Jonathan Byrne
04 May 2026
avatar-image

Thank you very much !

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Skill Endorsements

Dr Byrne is an excellent cardiologist with strong clinical judgement and a calm, reassuring manner. He consistently delivers high-quality, patient-centred care.

08 Apr 2026
Endorsed for
Chest Pain
Cardiovascular Disease

Dr Aamir Ali

Dr Aamir Ali

Cardiologist
Is a colleague

A brilliant cardiologist. Excellent colleague!

16 Feb 2026
Endorsed for
Congestive Heart Failure
Valvular Heart Disease

Mr Christos Tolias

Mr Christos Tolias

Neurosurgeon
Is a colleague

Jon is a highly skilled operator but more importantly is a great doctor, taking into consideration all aspects of a patient's needs and takes into account their individual needs.

04 Dec 2025
Endorsed for
Valvular Heart Disease
Percutaneous Mitral Valve Repair
Transcatheter Aortic Valve Implantation (TAVI)

Dr Matthew Wright

Dr Matthew Wright

Cardiologist
Is a colleague

Superb colleague and brilliant clinician. Great to work with and look after our mutual patients.

03 Nov 2025
Endorsed for
Cardiovascular Disease
Transcatheter Aortic Valve Implantation (TAVI)
Ischaemic Heart Disease

Dr Julian Strange

Dr Julian Strange

Cardiologist
Is a colleague

FAQ

What are Dr Jonathan Byrne's reviews like?

Dr Jonathan Byrne's overall patient rating is 4.96 out of 5 stars on Doctify. This is based on 77 reviews.

What languages does Dr Jonathan Byrne speak?

Dr Jonathan Byrne speaks English

Where is Dr Jonathan Byrne located?

Dr Jonathan Byrne primarily practices at Cleveland Clinic London, located at 33 Grosvenor Place, Belgravia, United Kingdom, SW1X 7HY
See more locations

Does Dr Jonathan Byrne accept new patients?

Dr Jonathan Byrne generally accepts new patients.

Get in touch with this specialist to enquire as a new patient