Cardiology (heart)
Spoken Languages


Dr Mark Mason is a consultant cardiologist at Harefield Hospital with expertise in coronary intervention, formerly the hospital's divisional director for heart. He was seconded to the role of medical director of Royal Brompton and Harefield hospitals in July 2019, before being appointed to the permanent post. 

Dr Mason is nationally recognised as a specialist in pacing lead extraction and has been a specialist advisor to the National Institute for Health and Care Excellence (NICE) on the use of laser sheaths to remove pacing leads.

Dr Mason has played a key role in developing the nationally acclaimed primary angioplasty programme at Harefield Hospital. He has also developed one of the busiest pacing services in the UK, delivering a complete range of pacing implantation and extraction techniques.

He is actively involved in developing innovative pathways to make smoother transitions between primary care and secondary/tertiary care, to improve the patient journey at both a local and regional level.  

He is also a member of the Pan-London Arrhythmia Group looking to improve both elective and emergency care of patients with arrhythmias.

Research interests 

Dr Mason’s research interests are currently based around the effective delivery of pacing for heart failure, including use of novel techniques to increase availability.


Dr Mason has presented at international conferences on both coronary intervention and pacing in heart failure. He regularly demonstrates the implantation of cardiac resynchronisation devices in Europe and has taught people from all over the world at a dedicated facility in Switzerland.

Dr Mason has been instrumental in utilising specialist simulation training, including working with an industry partner to develop a ‘university’ modular course designed to take trainees from little or no basic knowledge, through to developing skills and trouble-shooting complex devices.


Dr Mason has been a guest editor for coronary artery disease and reviewed articles for several high profile cardiology journals, including Europace, on a regular basis.

Private patient referral 

If you would like to make an appointment with this specialist for private care, contact the RB&HH Specialist care team