Ahmed works as a Consultant Cardiologist at Northwick Park Hospital, London North West Healthcare University Hospitals NHS Trust. He graduated with honours in 1997. His junior training was in Brighton and Sussex University Hospitals and he completed his specialist training in cardiology and coronary intervention in London.
He specialises in complex coronary intervention and the treatment of chronic total occlusions. He is the lead for coronary intervention at Northwick Park Hospital and is the head of Interventional Research. He has a special interest in myocardial perfusion; coronary flow reserve and the functional assessment of coronary artery stenosis. He has developed novel technologies to enable a better and easier assessment of fractional flow reserve. He has patents for his new technology with many publications and abstracts in peer journals and international conferences. He is a regular speaker and expert panellist in major national and international meetings.