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Dr Jonathan Behar Cardiologist at One Heart Clinic

Dr Jonathan Behar

Consultant Cardiologist & Electrophysiologist

Clinical profile

Subspecialty: Electrophysiology, Cardiac implantable devices, General Cardiology

Dr Jonathan Behar is a Consultant Cardiologist with a specialist interest in managing patients with heart rhythm disturbances. He works 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.

Dr Behar sees patients with a range of cardiac complaints including palpitations, dizziness, blackouts, chest pain and breathlessness. 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.

Dr Behar has a passion for addressing unmet clinical needs using novel tools and technologies. In 2022, he was selected by Health Education England to participate in the Topol Digital Fellowship working on the digital transformation of the consent process for patients undergoing cardiac procedures.

Qualifications and Training


Dr Behar 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 Consultant at the Royal Brompton and Harefield Hospitals prior to taking up his current position. He is also recognised by the International Board of Heart Rhythm Examiners as a Certified Cardiac Devices Specialist and Certified Electrophysiology Specialist.

Research & Awards

Dr Behar 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. He continues to publish papers in this field and is a frequent speaker at national and international meetings.

His recent work on digital consent in cardiology won the Royal College of Physicians Digital Award for Excellence in Patient Care 2021.

Blogs, Education & Events