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Dr James Harrison

BM BCh MA PhD MRCP CCDS

Cardiologist

Live bookings available

20 years of experience

London, SE1 2PR

(+4 more)

10 connections in healthcare

Skill endorsed

by Dr Antonis Pavlidis, Dr Daniel Sado and 7 other professionals

4.95

/5

(119 reviews)

Live bookings available

20 years of experience

London, SE1 2PR

(+4 more)

10 connections in healthcare

Skill endorsed

by Dr Antonis Pavlidis, Dr Daniel Sado and 7 other professionals

Areas of expertise

All
Reviews
Skill Endorsements
Echocardiogram
55
ECG (Electrocardiogram)
33
2
CT Coronary Angiogram
26
7

Contact

Book online


Expert in:

About Dr James Harrison

Dr James Harrison is a Consultant Cardiologist and Honorary Senior Lecturer at King's College Hospital NHS Foundation Trust. He specialises in general cardiology, with expertise in heart rhythm disorders and pacing, leading this service at the Princess Royal University Hospital in Bromley and treats patients privately, including at London Bridge Hospital.

Dr Harrison studied at Cambridge University, undertaking clinical training at Oxford University, graduating in 2005. During his Cardiology training in London, he was awarded a British Heart Foundation Clinical Research Training Fellowship to undertake a PhD at St Thomas’ Hospital in cardiac MRI and electrophysiology.  He has published numerous peer-reviewed articles and won national and international prizes for his research. Dr Harrison also performs cardiac MRI and CT studies and he also has a specialist interest in pre-operative cardiology and optimisation of patients for non-cardiac surgery.

Diseases, Medical Tests and Treatments

  • Pacemaker and loop recorder implantation
  • 24 Hour Blood Pressure Monitor
  • Calcium Coronary Score
  • Cardiac Magnetic Resonance Scan (Cardiac MRI)
  • CT Coronary Angiogram
  • ECG (Electrocardiogram)
  • ECG Monitor (24 Hours)
  • Ambulatory ECG monitoring
  • Exercise ECG
  • Echocardiogram
  • Acute Coronary Syndrome
  • Arrhythmia (Irregular Heartbeat)
  • Atherosclerosis
  • Bradycardia
  • Cardiomyopathy
  • Chest Pain
  • Congestive Heart Failure
  • Dizziness
  • Heart Attack
  • Heart Failure
  • Heart Murmurs
  • Heart Muscle Disease
  • Heart Valve Problems
  • Loss Of Consciousness (Syncope)
  • Palpitations
  • Tachycardia
  • Valvular Heart Disease

Areas of expertise

All
Reviews
(263)
Skill Endorsements
(78)

Click the bar to read reviews or skill endorsements

Echocardiogram
55
ECG (Electrocardiogram)
33
2
CT Coronary Angiogram
26
7
ECG Holter Monitor
23
4
High Blood Pressure
19
3
Atrial Fibrillation
18
3
Chest Pain
16
4
Palpitations
17
2
Arrhythmia (Irregular Heartbeat)
16
2
24 Hour Blood Pressure Monitor
7
2
Cardiac MRI (CMR)
2
6
Pacemaker Surgery
3
3
Dizziness
2
3
Angina
2
2
Cardiomyopathy
3
1
Calcium Coronary Score
1
3
Cardiac CT
4
Health Assessments
3
Coronary Artery Disease
3
Exercise Stress Test
1
2
Bradycardia
3
Heart Attack
3
Heart Murmurs
2
1
Transthoracic Echocardiogram (TTE)
3
Cardiovascular Disease
2
Breathlessness
2
Loss of Consciousness (Syncope)
1
1
Congestive Heart Failure
1
1
Heart Failure
1
1
Heart Muscle Disease
1
1
Cardioversion
2
Cardiac Imaging
2
Implantable Loop Recorder (ILR)
2
Cardiac Screening
2
Tachycardia
1
Hypertension (High Blood Pressure)
1
Irregular Heart Beat
1
Infective Endocarditis
1
Supraventricular Tachycardia (SVT)
1
Acute Coronary Syndrome (ACS)
Atherosclerosis
Heart Valve Problems
Low Blood Pressure
Unstable Angina
Valvular Heart Disease
Video Consultation

Registered with

General Medical Council

No. 6128242


Qualifications

Qualifications:

  • MA University of Cambridge 2002
  • BM BCh University of Oxford 2005
  • MRCP Royal College of Physicians, London 2008
  • PhD King's College London 2014

Languages spoken

  • English

Consultation fees

  • New appointment: £275
  • Follow-up appointment: £225

Insurers

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

Location

All locations for Dr James Harrison

HCA Healthcare UK London Bridge Hospital

4.82

(5237)

27 Tooley Street, London, United Kingdom, SE1 2PR

4.75

(3261)

35 Weymouth Street, London, United Kingdom, W1G 8BJ

4.89

(1604)

Bucks Cross Road Chelsfield, Orpington, United Kingdom, BR6 7RG

4.88

(1037)

Poppy Lane Shirley Oaks Village, Croydon, United Kingdom, CR9 8AB

4.84

(794)

125 Albemarle Road, Beckenham, United Kingdom, BR3 5HS

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Dr James Harrison is thorough, reassuring, and gives clear explanations. He carries out comprehensive cardiac assessments and manages conditions like atrial fibrillation and high blood pressure. Patients value his professional approach, keen listening, and practical advice, which leads to positive outcomes. The patient pathway incorporates common diagnostic procedures such as echocardiograms, ECGs, CT coronary angiograms, and ECG holter monitors.

5.00
verified patient
17 May 2026

I don’t know if it’s weird to say, but I’ve had a lot of fun whilst checking through my health situation. All of Dr Harrison’s team were also really great. Whilst informing me of my health situation, we also had a lot of great conversations about life in general. I’d quite happily meet them all socially too - always a good way to have a relationship with those providing your health support

5.00
verified patient
16 Apr 2026

Very approachable and professional. Provided clear explanation of diagnosis

Patient seen for:
5.00
verified patient
13 Apr 2026

He carried a very detail examination and was very clear on what was going to take place and very clear on the results obtained for the various tests.

5.00
verified patient
13 Apr 2026

I had met with Dr Harrison before and on all occasions found him to be easy to understand and reassuring. He laid out the options available to me and helped guide me in a treatment plan. The treatment plan was to begin with an appointment at the AF clinic at the PRU on 14.04.26. Unfortunately l have just been advised today that this appointment has now been moved to 14.07.26.

Patient seen for:
5.00
verified patient
16 Mar 2026

Dr Harrison was patient; he listened and looked to build rapport with an informal approach. He was accommodating and took the time to answer my questions :)

5.00
verified patient
17 Feb 2026

Dr James Harrison and his PA (Hannah) make a great team.

5.00
verified patient
18 Sep 2025

I was referred to Dr Harrison as I was experiencing high blood pressure. Following an initial consultation, I underwent various standard analytical procedures to assess the health of my heart etc. At the follow-up consultation I was prescribed medication. I have no hesitation in recommending Dr Harrison. He is very clear in the way he explained the diagnosis and was very willing to spend time answering my many questions. He comes across as someone who is highly experienced and who really puts the patient first, for example, by using language that the patient can understand.

Patient seen for:
5.00
verified patient
17 Sep 2025

Dr Harrison was very pleasant and very approachable. He asked about my health and any conditions I have. He asked about my symptoms and explained to me what caused these. His explanation was very clear and very thorough and this was important for me. I like to know. With his nurse he carried out an ECG, arranged for me to have blood tests and an echocardiogram which I was able to have the same day. I was very reassured by Dr Harrison. He prescribed Bisoprolol 2.5 mg which I commenced the following morning. Dr Harrison explained the manoeuvres I could carry out if I had palpitations but apart from one short episode these have ceased. I am grateful to Dr Harrison and I would definitely make an appointment to see him if I had any further symptoms and I would recommend him to anyone needing to see a cardiologist.

5.00
verified patient
17 Sep 2025

very professional

5.00
verified patient
17 Sep 2025

Since being under the care of Dr Harrison I have found his manner and demeanour to be one of complete professionalism, compassion and understanding, mixed with kindness. Dr Harrison has a way of explaining everything clearly and in a way that you can understand, and is excellent at listening to your questions and reassuring you of any worries that you may have. For me Dr Harrison is the very best Cardiologist out there! When on my last appointment my wife and I had certain questions, he took the time to explain and was extremely reassuring, he has a great way off helping you feel calm and relaxed … just superb!

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Skill Endorsements

James is a leading cardiologist that will always pay attention to detail and will always ensure his patients will receive the highest quality of care. I would very strongly recommend him with no reservations.

07 May 2024
Endorsed for
Chest Pain
Arrhythmia (Irregular Heartbeat)
Arrhythmia (Irregular Heartbeat)

Dr Antonis Pavlidis

Dr Antonis Pavlidis

Cardiologist
Is a colleague

James is an outstanding Cardiologist and colleague who I would highly recommend for an opinion and for cardiac imaging.

20 Oct 2023
Endorsed for
Cardiology
CT Coronary Angiogram
Cardiac MRI (CMR)

DS

Dr Daniel Sado

Cardiologist

Dr Harrison is an excellent cardiologist and a highly valued colleague, with expertise in general cardiology, EP and cardiac imaging (cardiac CT and MRI). He provides a first class service to his patients, ensuring quality and safety in all aspects of patient care. I would highly recommend him.

20 Oct 2023
Endorsed for
Cardiology
CT Coronary Angiogram
Cardiac MRI (CMR)

DL

Dr Matteo Lancioni

Cardiologist
Is a colleague

I have known Dr. Harrison for over a decade and during that time, he has demonstrated himself to be a very capable cardiologist, with a very quick eye to identifying and solving clinical problems. He has a broad knowledge across the entire spectrum of cardiology with a specialist interest in disorders of heart rhythm. He is a very reliable, trustworthy person and will always go the extra mile to do the right thing for his patients.

20 Oct 2023
Endorsed for
Cardiology
CT Coronary Angiogram
Cardiac MRI (CMR)

PO

Professor Mark O'Neill

Cardiologist
Is a colleague

FAQ

What are Dr James Harrison's reviews like?

Dr James Harrison's overall patient rating is 4.95 out of 5 stars on Doctify. This is based on 119 reviews.

What languages does Dr James Harrison speak?

Dr James Harrison speaks English

Where is Dr James Harrison located?

Dr James Harrison primarily practices at HCA Healthcare UK London Bridge Hospital, located at 27 Tooley Street, London, United Kingdom, SE1 2PR
See more locations

What are Dr James Harrison working hours?

Dr James Harrison is working Monday (18:00 - 20:00), Tuesday (18:00 - 20:00), Wednesday (14:00 - 17:30), Thursday (10:30 - 12:30, 08:30 - 12:30, 18:00 - 20:00)

Find where Dr James Harrison operates today

Does Dr James Harrison accept new patients?

Dr James Harrison generally accepts new patients.

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