PhD MB ChB MRCP
31 years of experience
Belgravia, SW1X 7HY
(+2 more)
35 connections in healthcare
Skill endorsed
by Dr Aamir Ali, Mr Christos Tolias and 8 other professionals
31 years of experience
Belgravia, SW1X 7HY
(+2 more)
35 connections in healthcare
Skill endorsed
by Dr Aamir Ali, Mr Christos Tolias and 8 other professionals
Areas of expertise
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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.
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General Medical Council
No. 4183161
University of Bristol
Medicine
Graduated 1995
Education
Memberships
New appointment
£345Follow-up appointment
£23033 Grosvenor Place, Belgravia, United Kingdom, SW1X 7HY
24 Portland Pl, London, United Kingdom, W1B 1LU
Cleveland Clinic Moorgate Outpatient Centre, 55 Moorgate, London, United Kingdom, EC2R 6BH
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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.
I have complète confidence in Jonathan Byrne . He takes time to explain every aspect of my care
Dr Byrne has been my cardiologist for about five years. Thoroughly professional, with an excellent manner and provides very good advice clearly.

Thank you so much for your kind words. It has been a pleasure to look after you!
Excellent

Thank you!
very good advice as usual

Thank you veyr much for the positive review
Cleveland Clinic was spotless, efficient and calm, as usual! Dr Byrne was friendly, efficient - an excellent consultation again. Thoroughly recommend him for cardiac treatments

Thank you so much for your lovely review. Glad I could be of help!
Dr Byrne was extremely helpful in fitting me into his surgery list, and thereafter performing the operation I highly recommend consulting him

Thank you very much for the kind review.
Very informative about the next stepn in the treatment of my leaking heart valve.
Very informative and clear as to what the next step is to take place.

Thank you very much. I'm glad I was able to help and explain things clearly
Wonderful attention concise information addressed my concerns. Exponentially professional clarity on my prognosis

Thank you so much. I appreciate the lovely feedback
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
Dr Aamir Ali
CardiologistA brilliant cardiologist. Excellent colleague!
16 Feb 2026
Mr Christos Tolias
NeurosurgeonJon 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
Dr Matthew Wright
CardiologistSuperb colleague and brilliant clinician. Great to work with and look after our mutual patients.
03 Nov 2025
Dr Julian Strange
CardiologistWhat 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 79 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
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Does Dr Jonathan Byrne accept new patients?
Dr Jonathan Byrne generally accepts new patients.
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