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Dr Jonathan Behar

MBBS BSc (Hons) MRCP PhD CCDS CEPSA FEHRA

Cardiologist

Live bookings available

19 years of experience

Bushey, WD23 1RD

(+3 more)

212 connections in healthcare

Skill endorsed

by Professor Francisco Leyva-Leon, Dr Shaumik Adhya and 35 other professionals

4.98

/5

(404 reviews)

Live bookings available

19 years of experience

Bushey, WD23 1RD

(+3 more)

212 connections in healthcare

Skill endorsed

by Professor Francisco Leyva-Leon, Dr Shaumik Adhya and 35 other professionals

Areas of expertise

All
Reviews
Endorsements
ECG (Electrocardiogram)
132
8
Arrhythmia (Irregular Heartbeat)
105
18
High Blood Pressure
76
13

Contact

Book online


Expert in:

About Dr Jonathan Behar

Dr Jonathan Behar is a Consultant Cardiologist with a specialist interest in managing patients with heart rhythm disturbances. His is based at Guy's and St Thomas' NHS Foundation Trust where he is also a Senior Clinical Lecturer within the Department of Imaging Sciences, Kings College London.

He graduated with honours from the Royal Free and University College Medical School before specialising in general medicine and cardiology in north London. He trained in cardiac rhythm management at the Barts Heart Centre and was a Locum Consultant at the Royal Brompton and Harefield Hospitals before taking up his current position.

He performed pioneering research collaborating with engineers, industry and clinical teams which led to the co-invention an image guidance platform that integrates MRI and X-rays in real-time for personalising the care of patients undergoing cardiac procedures. This work was nominated for a European Innovation Award in 2017.

Dr Behar has a passion for addressing unmet clinical needs through translational and innovative solutions. He was an NHS England Clinical Entrepreneur Fellow and recently led a team which digitised pre-operative consent for patients undergoing cardiac procedures. This work won the Royal College of Physicians Digital Award for Excellence in Patient Care 2021.

Dr Behar sees patients with a whole range of cardiac complaints including palpitations, dizziness, fainting, chest pain and breathlessness. He also manages patients with high blood pressure and high cholesterol.  He performs catheter ablations for a range of arrhythmias with a particular interest in new technologies for the treatment of atrial fibrillation. He is highly experienced in the implantation of cardiac devices (pacemakers, defibrillators and cardiac resynchronisation therapy) including the latest, miniaturised leadless pacemakers.


Subspecialties

  • Electrophysiology
  • Heart Muscle Disease/Cardiomyopathy
  • Heart Failure
  • Preventative Cardiology

Areas of expertise

All
Reviews
(809)
Endorsements
(314)

Click the bar to read reviews or skill endorsements

ECG (Electrocardiogram)
132
8
Arrhythmia (Irregular Heartbeat)
105
18
High Blood Pressure
76
13
Atrial Fibrillation
63
19
Palpitations
72
2
Chest Pain
47
13
Echocardiogram
45
3
Breathlessness
36
3
Health Assessments
25
10
24 Hour Blood Pressure Monitor
25
8
Dizziness
26
5
Catheter Ablation
12
14
Pacemaker Surgery
13
9
Heart Scan
13
6
Supraventricular Tachycardia (SVT)
3
15
Cardiac Resynchronisation Therapy (CRT)
18
Cardiovascular Disease
8
9
ECG Holter Monitor
2
15
Cardiac Pacing
16
Hypertension (High Blood Pressure)
12
3
Fainting
13
2
Congestive Heart Failure
13
Atrial Flutter
7
4
Unstable Angina
9
Implantable Cardioverter-Defibrillator (ICD)
3
6
Implantable Loop Recorder (ILR)
5
4
Bradycardia
5
3
Pacemakers
5
2
Transoesophageal Echocardiogram
1
6
Transthoracic Echocardiogram (TTE)
7
Cardiomyopathy
2
4
Heart Failure
4
2
Cardioversion
1
5
Tachycardia
2
3
Exercise Stress Test
1
4
Heart Murmurs
3
2
Cardiac Re-synchronisation Therapy
4
Heart Blocks
4
Heart Health Check
4
Leadless Pacemakers
4
Video Consultation
2
1
High Cholesterol
1
2
Heart Valve Problems
3
CT Coronary Angiogram
3
Echocardiogram (Cardiac Ultrasound)
3
Neurocardiogenic Syncope (Vasovagal)
3
Oedema
3
Cardiac Generator Replacement
3
Loss of Consciousness (Syncope)
1
1
Angina
1
1
Autonomic Disorders
2
Cardiac MRI
2
Heart Muscle Disease
2
Pericarditis
1
1
Temporomandibular Joint (TMJ) Problems
1
Troublesome Cough
1
Long QT Syndrome
1
Loose Tooth
1
Ventricular Fibrillation
1
Cardio-Pulmonary Exercise Testing
1
Cardiac Rehabilitation
1
Irregular Heart Beat
1
Infective Endocarditis
1
Acute Coronary Syndrome (ACS)
1
Aortic Valve Regurgitation
1
Aortic Valve Degeneration
1
Heart Surgery
1
Variable Blood Pressure
1
Postural Orthostatic Tachycardia Syndrome (POTS)
1
Dyslipidaemia
1
Medical Weight Loss
1
Cardiac CT
1
Cardiac Imaging
1
Cardiac Ablation
1
Cardiovascular Disease Prevention
1
Takotsubo Syndrome
Non-Invasive Heart Imaging
Microvascular Angina
Cardio-Oncology
Cardiac Rhythm Disturbance
Tricuspid Valve Disease
Non-Obstructive Coronary Artery Disease
Mitral Valve Disease
Ischaemic Heart Disease
Athlete's Heart
Aortic Stenosis
Coronary Artery Disease
Pulmonary Hypertension
Low Blood Pressure
Heart Attack
Atherosclerosis
Sports Cardiology
Hypertrophic Cardiomyopathy
Myocardial Perfusion Scan
Cardiac Screening
Long COVID
Autonomic Mediated Syncope
Heart & Lung Health Assessments
Aviation Cardiology
DVLA Assessments
Exercise Testing
Valvular Heart Disease
Calcium Coronary Score
Cardiovascular Syncope
Cardiac Arrest
Aortic Valve Stenosis
Cholesterol Disorders
Conduction System Pacing (CSP)
Adult Congenital Heart Disease
Pulsed Field Ablation

Registered with

General Medical Council

No. 6149085


Education

University of London

Medicine

Graduated 2006


Qualifications

  • BSc (Hons) Anatomical Science, Developmental Biology, Neuroscience, Royal Free and University College Medical School - 2003
  • MBBS (Hons) Royal Free and University College Medical School - 2006
  • MRCP, Internal/General Medicine, Royal College of Physicians - 2009
  • Cardiovascular Medicine, European Society of Cardiology - 2013
  • Designing Clinical Research, University of California - 2014
  • Level 2 Accreditation, Society of Cardiac Computed Tomography - 2015
  • Transthoracic Echocardiography Accreditation, British Society of Echocardiography - 2015
  • PhD Imaging Sciences and Biomedical Engineering, King's College London - 2016
  • Level 3 Accreditation Cardiac MRI, Society of Cardiac Magnetic Resonance - 2016
  • Certified Cardiac Device Specialist, International Board of Heart Rhythm Examiners - 2016
  • Certification in Cardiac Electrophysiology, International Board of Heart Rhythm Examiners - 2018
  • FEHRA, European Society of Cardiology/European Heart Rhythm Association - 2018

Publications

Read publications and papers written by this specialist.

01 / 12 / 2023

Journal of Cardiovascular Electrophysiology

Published in Cost‐effectiveness analysis of leadless cardiac resynchronization therapy

22 / 11 / 2022

Published in Leadless Cardiac Pacing: New Horizons


Languages spoken

  • English

Consultation fees

  • New appointment: £325
  • Follow-up appointment: £250

Insurers

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

Location

All locations for Dr Jonathan Behar

Spire Bushey Hospital

4.87

(878)

Heathbourne Road, Bushey, United Kingdom, WD23 1RD

4.82

(5109)

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

4.84

(4939)

5-10 Beaumont St, London, United Kingdom, W1G 6AA

4.93

(1270)

68 Harley Street, London, United Kingdom, W1G 7HE

Video consultation

Video Consultation

0

(0)

Online, Video Consultation, United Kingdom, W1

Reviews

AI Review Summary

This summary was created by AI based on recent reviews

Dr Jonathan Behar shows professional, friendly, and reassuring interaction with patients. He provides clear explanations, listens to concerns, and ensures patients feel comfortable and informed about their care. Patients note his competence for practical advice and skilled approach to cardiology treatments, including catheter ablation procedures. Investigations involve ECGs, addressing heart rhythm irregularities such as arrhythmia, alongside managing high blood pressure and palpitations.

5.0
verified patient
11 Mar 2026

Excellent first consultation with Dr Behar. I left with a very thorough and detailed plan for next steps. I feel confident Dr Behar will get to the bottom of my issues.

5.0
verified patient
11 Mar 2026

I saw Dr Behar yesterday and was very impressed. He was thorough, clear in his explanations, and had a calm, reassuring manner. I felt listened to, cared for, and completely at ease throughout the consultation. I would definitely recommend him. Thank you

5.0
verified patient
11 Mar 2026

Dr Behar was very friendly, respectful and professional throughout the appointment. He was empathetic and had clearly read my notes before I entered the room. He explained the necessity for having the tests carried out and what the tests entailed. He had a very nice bedside manner and was reassuring.

5.0
verified patient
10 Mar 2026

Dr Behar is a highly professional physician, with a thorough approach. He is also extremely well versed in the latest technology and I have felt that I could not have been in better hands.

Patient seen for:
5.0
verified patient
03 Mar 2026

Amazing experience. Dr Behar was warm and professional. I couldn't have been happier!

5.0
verified patient
03 Mar 2026

Appointment was on time. Reception was great. Environment very nice. Dr Behar was sympathetic; clear and reassuring. Overall an excellent experience.

Patient seen for:
5.0
verified patient
26 Feb 2026

Professional with excellent 'bedside' manner. Caring, approachable, friendly and ready to explain all details. Would recommend and rate as 10 out of 10.

5.0
verified patient
25 Feb 2026

It was helpful that Dr Behar stressed to reinforce actions required.

Patient seen for:
5.0
verified patient
25 Feb 2026

Very clear explanations given and options explored

5.0
verified patient
14 Feb 2026

All the team were helpful and friendly and put you at ease

Patient seen for:
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Endorsements

Dr Behar is an excellent cardiologist. He is very experienced in general cardiology and is a leading cardiologist in the treatment of patients with arrhythmias and heart failure.

11 Jan 2026
Endorsed for
Cardiovascular Disease
Breathlessness

Professor Francisco Leyva-Leon

Professor Francisco Leyva-Leon

Cardiologist
Is a colleague

I've worked closely with Jonathan for some years and he has helped many of my patients who have had issues with their pacemaker or defibrillator requiring extraction. Excellent colleague, who demonstrates his care for patients.

08 Jan 2026
Endorsed for
Cardiovascular Disease
Breathlessness

Dr Shaumik Adhya

Dr Shaumik Adhya

Cardiologist
Is a colleague

Jonathan Behar is an excellent cardiologist as well as a well respected academic.

04 Jan 2026
Endorsed for

Dr Jonathan Katz

Dr Jonathan Katz

Diabetes & Endocrinology Specialist
Is a colleague

I am fortunate to work with Dr Behar at St Thomas' Hospital, and know him to be an exceptional cardiologist and electrophysiologist. I regularly seek his advice for patients with complex arrhythmia issues or who need pacemakers. He provides the highest standard of care and is an excellent communicator and advocate for his patients. I would wholeheartedly recommend him to any friends or family seeking treatment.

31 Jul 2025
Endorsed for
Cardiac Resynchronisation Therapy (CRT)
Pacemaker Surgery
Cardiovascular Disease

Dr. Matthew Ryan

Dr. Matthew Ryan

Cardiologist
Is a colleague
Dr Jonathan Behar logo

Get to know Dr Jonathan Behar

Videos
Socials

Most recent videos

Explore videos from Dr Jonathan Behar explaining process of procedures and other important things you should know before choosing your provider.

Dr Jonathan Behar

Dr Jonathan Behar

Hi my name is Dr Jonathan Behar and I am a Consultant Cardiologist. Here is a short video about my practice.

12 July 2023

EHRA 2019: CRT Late-Breaking Trials - Jonathan Behar & Afzal Sohaib

EHRA 2019: CRT Late-Breaking Trials - Jonathan Behar & Afzal Sohaib

Dr Jonathan M Behar - Barts Heart Centre, London, UK and Dr Afzal Sohaib - Barts Health NHS Trust, London, UK - discussing - EHRA 2019: CRT late-breaking tri...

12 July 2023

youtube.com

EHRA 2019: Radi-CRT Study - Jonathan Behar, Manav Sohal & Aldo Rinaldi

EHRA 2019: Radi-CRT Study - Jonathan Behar, Manav Sohal & Aldo Rinaldi

Dr Jonathan Behar, Barts Heart Centre, London, UK and Dr Manav Sohal, New Victoria Hospital, Kingston-upon-Thames, UK and Prof Christopher Aldo Rinaldi, Guy...

12 July 2023

youtube.com

EHRA 2019: RAISE CRT Trial - Jonathan Behar & Michael Glikson

EHRA 2019: RAISE CRT Trial - Jonathan Behar & Michael Glikson

Dr Jonathan M Behar, Barts Heart Centre, London, UK and Prof Michael Glikson, Shaare Zedek Medical Center, Jerusalem, IS discusses Speckle tracking radial st...

12 July 2023

youtube.com

Leadless pacing: Therapy, Challenges and Novelties

Leadless pacing: Therapy, Challenges and Novelties

Watch on Arrhythmia Academy: https://arrhythmiaacademy.com/education/leadless-pacing-therapy-challenges-and-novelties/In this episode of Arrhythmia Academy's...

12 July 2023

youtube.com

Socials

Dr Jonathan Behar

@JonathanBehar

Dr Jonathan Behar

@thelondonheartdoctor

FAQ

What are Dr Jonathan Behar's reviews like?

Dr Jonathan Behar's overall patient rating is 4.98 out of 5 stars on Doctify. This is based on 404 reviews.

What languages does Dr Jonathan Behar speak?

Dr Jonathan Behar speaks English

Where is Dr Jonathan Behar located?

Dr Jonathan Behar primarily practices at Spire Bushey Hospital, located at Heathbourne Road, Bushey, United Kingdom, WD23 1RD
See more locations

What are Dr Jonathan Behar working hours?

Dr Jonathan Behar is working Monday (14:00 - 20:00), Tuesday (13:00 - 20:00)

Find where Dr Jonathan Behar operates today

Does Dr Jonathan Behar accept new patients?

Dr Jonathan Behar generally accepts new patients.

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