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Dr Owais Dar

Owais Dar headshot

Consultant cardiologist

Dr Dar is a consultant cardiologist at Harefield Hospital and honorary senior clinical lecturer in cardiology at the National Heart and Lung Institute, Imperial College London.  

Education and training

Dr Dar completed his specialist general cardiology training and sub-speciality heart failure training at:

  • North West London Hospitals NHS Trust
  • The Royal Brompton & Harefield NHS Foundation Trust 
  • Whittington Hospital. 

He got a funded international fellowship in advanced heart failure, heart transplantation and left ventricular assist devices in Vienna General Hospital (Austria) and Stanford Health Care (California, USA). 

Clinical practice

Dr Dar specialises in adult cardiology, with a particular interest in patients with advanced heart failure. 

Most of the patients he sees have been diagnosed with heart failure and are referred from other hospitals seeking opinions about:

  • on-going treatment 
  • appropriateness of drug therapy 
  • the need for devices such as pacemakers or defibrillators 
  • cardiac transplant or mechanical circulatory support surgery. 

Research interests

Dr Dar got his research degree from the National Heart and Lung Institute, Imperial College London, in 2010, studying the role of telemonitoring in heart failure patients. 

His other research interests include cardiac transplantation and mechanical circulatory support.


Dr Dar is a member of:

  • the British Society for Heart Failure and British Cardiac Society
  • the Royal College of Physicians  
  • the European Society of Cardiology 
  • the International Society of Heart and Lung Transplantation.


Education and publications

Dr Dar has written several book chapters and articles in peer reviewed journals on heart failure.