Dr Mark Philip Cassar (MD, PhD, MRCP) is a consultant cardiologist at Hampshire Hospitals NHS Foundation Trust, providing private cardiology consultations in Basingstoke and Winchester. He trained in cardiology and general internal medicine in Oxford and Berkshire, with specialist expertise in heart valve disease and cardiac imaging.
Dr Cassar holds advanced accreditation across the three main cardiac imaging techniques: echocardiography, cardiac MRI and cardiac CT. This breadth of imaging experience helps him choose the most appropriate investigation for each clinical question, rather than defaulting to a single test.
He is a member of the Wessex Regional Valve MDT, where complex valve cases are reviewed by a specialist team. His private practice focuses on careful assessment, clear explanation and practical next steps for patients with symptoms, known heart disease or cardiovascular risk concerns.
Dr Cassar holds a PhD from the University of Oxford, where he researched the effects of viral illness, including COVID-19, on the heart and other organs. His work at the Oxford Centre for Clinical Magnetic Resonance Research included national studies funded by the National Institute for Health and Care Research (NIHR) and the British Heart Foundation.
His Long COVID research has been widely cited and contributed to the evidence base considered in national guidance. He has authored more than 58 peer-reviewed publications, including papers in The Lancet Respiratory Medicine, Journal of the American College of Cardiology, Radiology, Brain and Nature Communications.
His full publication record is available via his ORCID profile and ResearchGate.
Dr Cassar completed his specialist training in Cardiology and General Internal Medicine at Oxford University Hospitals and the Royal Berkshire Hospital, gaining broad experience across all areas of heart disease while developing deep expertise in cardiac imaging. He is on the GMC Specialist Register for Cardiology. His qualifications include:
– CCT in Cardiology and General Internal Medicine – Certificate of Completion of Training, the final milestone of UK specialist training
– DPhil (PhD) in Medical Sciences, University of Oxford
– Level 3 Cardiac MRI Accreditation – SCMR, the highest international standard
– Level 3 Cardiac CT Accreditation – BSCI/BSCCT, the highest UK standard
– Transthoracic Echocardiography Accreditation – BSE, advanced practitioner level
– MRCP (UK) – Membership of the Royal College of Physicians
– Doctor of Medicine and Surgery (MD), University of Malta
This triple accreditation across echocardiography, cardiac MRI and cardiac CT is held by very few cardiologists in the UK. For patients, it means Dr Cassar has the training and experience to offer the full range of cardiac investigations, so you get the right test first time.
Dr Cassar’s professional roles and awards include:
These roles reflect ongoing involvement in clinical practice, imaging standards, education and service development.
Dr Cassar offers comprehensive assessment and treatment for a wide range of cardiac conditions:
Dr Cassar delivers state-of-the-art cardiac imaging:
Beyond clinical practice, Dr Cassar remains active in cardiovascular research, contributing to our understanding of:
His research has been funded by prestigious organizations including the National Institute for Health and Care Research (NIHR), which has directly influenced clinical practice guidelines.
Dr Cassar provides private cardiology consultations in Basingstoke and Winchester, Hampshire. He offers comprehensive cardiac assessments, diagnostic imaging interpretation, and personalized treatment plans tailored to each patient’s needs.
For appointments or inquiries, please visit our contact page.
Dr Cassar is registered with the General Medical Council (GMC) and holds a Certificate of Completion of Training in Cardiology and General Internal Medicine. He maintains active involvement in continuing professional development and stays current with the latest advances in cardiovascular medicine.
