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Trust score 8/100
Accepting new patients
Dr
Dr John M Walker
Cardiology
English
10,046+
Patients seen
4
Years in practice
9
Publications
1
Languages spoken
About
Dr John Walker is a Consultant Cardiologist at The Harley Street Clinic, HCA UK at University College Hospital and for the Barts Health NHS Trust. He specialises in cardiac rehabilitation, cardiovascular disease associated with inherited haemoglobinopathies - Thalassaemia and Sickle Cell disease.
He graduated from the University of Birmingham (honours in pre-clinical sciences) before specialising in cardiology at St.Thomas' Hospital & the Brompton Hospital, London and at the John Radcliffe Hospital, Oxford. His MD in 1983 involved studying the mechanical performance of human heart muscle. In 1987 he was appointed as Consultant Cardiologist to University College and the Middlesex Hospitals.
As a consequence of his interest in patients with inherited diseases of haemoglobin, he established The Thalassaemia and Sickle Cardiac Centre at the Hatter Cardiovascular Institute, UCLH. This was the world's first cardiology clinic dedicated to diagnosing and treating young patients with inherited haemoglobinopathies.
Dr Walker is highly active in clinical research, with more than 60 publications in scientific and medical journals. He has made numberous book contribitions, including authorship of the cardiovascular disease chapeters of a major English language textbook of medicine. He was the Treasurer and then President of the British Association of Cardiovascular Rehabilitation from 2001 to 2006, as well as a Council member of the British Cardiovascular Society.
Diseases, Medical Tests and Treatments
• Cardia Magnetic Resonance Scan (cardaic MRI)
• ECG (electrocardiogram)
• Paediatric congenital heart disease (CHD)
He graduated from the University of Birmingham (honours in pre-clinical sciences) before specialising in cardiology at St.Thomas' Hospital & the Brompton Hospital, London and at the John Radcliffe Hospital, Oxford. His MD in 1983 involved studying the mechanical performance of human heart muscle. In 1987 he was appointed as Consultant Cardiologist to University College and the Middlesex Hospitals.
As a consequence of his interest in patients with inherited diseases of haemoglobin, he established The Thalassaemia and Sickle Cardiac Centre at the Hatter Cardiovascular Institute, UCLH. This was the world's first cardiology clinic dedicated to diagnosing and treating young patients with inherited haemoglobinopathies.
Dr Walker is highly active in clinical research, with more than 60 publications in scientific and medical journals. He has made numberous book contribitions, including authorship of the cardiovascular disease chapeters of a major English language textbook of medicine. He was the Treasurer and then President of the British Association of Cardiovascular Rehabilitation from 2001 to 2006, as well as a Council member of the British Cardiovascular Society.
Diseases, Medical Tests and Treatments
• Cardia Magnetic Resonance Scan (cardaic MRI)
• ECG (electrocardiogram)
• Paediatric congenital heart disease (CHD)
“Evidence-based care tailored to each patient — taking the time to explain options and shared decisions.”
— Dr John M Walker
Education & training
-
2012–2018 MD · Medicine and Surgery
-
2018–2022 Residency · Cardiology
-
2022–2023 Fellowship · Subspecialty training
Career & appointments
-
2022-09–2023-08 Junior consultant
Licenses & insurance
Medical licenses
— Organización Médica Colegial de España (OMC)
Board certifications
European Board of Cardiology
Malpractice insurance:
Generali Healthcare · 2,000,000 EUR coverage
· No claims on file
Procedures performed
| Procedure | Code | Lifetime count |
|---|---|---|
| Cardiac consultation | 99244 | 2,572 |
| Echocardiogram | 93306 | 1,291 |
| Stress test | 93015 | 1,885 |
| Holter monitor | 93225 | 232 |
| Coronary angiography | 93454 | 2,463 |
| PCI / coronary stent | 92928 | 785 |
| Pacemaker implantation | 33208 | 2,514 |
Services & pricing
| Service | Duration | Modality | Price |
|---|---|---|---|
| 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 | 90 min | in_clinic | 840.00 EUR |
| Holter monitor | 120 min | in_clinic | 240.00 EUR |
| Coronary angiography | 30 min | in_clinic | 600.00 EUR |
| PCI / coronary stent | 90 min | in_clinic | 360.00 EUR |
Office, team & in practice
Videos
Research & publications
h-index: 12 · i10: 12
-
European registry analysis of Cardiology outcomes
DOI: 10.2154/euroclin.2025.0 · PMID: 36403505 · cited by 142
-
Outcomes of Cardiology in adults — a multi-centre cohort
DOI: 10.8198/euroclin.2024.1 · PMID: 33953928 · cited by 60
-
European registry analysis of Cardiology outcomes
DOI: 10.6380/euroclin.2023.2 · PMID: 30016405 · cited by 194
Invited talks
- Practical updates in Cardiology European Annual Congress (Cardiology) · Vienna · 2024 · invited
- Single-centre experience in Cardiology National Society Meeting · · 2023 · oral abstract
Awards & memberships
Awards
- 🏆 Top-rated Cardiology — · EuroClinics Patient Choice · 2025 · regional
Society memberships
- European Society of Cardiology (ESC) — Member · since 2023
- American Heart Association (AHA) — Member · since 2023
- EAPCI — Member · since 2023
- European Union of Medical Specialists (UEMS) — Member · since 2023
Patient reviews
- Bedside Manner
- 0.05
- Knowledge
- 0.08
- Wait Time
- 3.80
- Staff Friendliness
- 0.02
- Ease Of Appointment
- 4.00
- Value For Money
- 4.10
- Would Recommend Pct
- 4
-
★ 5 verified visit
“Very thorough first visit — explained every step. Booking was easy and the staff were welcoming.”
-
★ 5 verified visit
“Took time to listen and reviewed all my previous results. I would absolutely recommend.”
-
★ 4 verified visit
“Professional and knowledgeable. Wait on the day was a bit long, otherwise excellent.”
Articles by this doctor
- Patient education Patient guide to Cardiology
- Awareness When should you see a cardiology?
For international patients
- Coordinator
- Patient liaison · dr.john.malcom.walker@euroclinics.example
