Private Harley Street Clinic is proud to be the UK's leading provider of private Covid-19 testing solutions. Patient care is and always will be our number one priority and the clinic continues to strive to bring the latest testing solutions to its customers as the world navigates a path through the pandemic.

Private Harley Street Clinic


Private Harley Street Clinic was founded by cardiothoracic surgeon Dr Mark Ali in 2009 with the goal of embracing the most innovative technology across every discipline to deliver his vision of preventative medicine. The resulting symbiosis of technical, medical and molecular advances allowed Dr Ali to create the Liferisk Assessment, the world's most advanced evaluation of the major organic threats to life: namely cancer, heart disease and strokes, as well as innovative assessment solutions for Corporate Healthcare. When the global coronavirus pandemic struck in early 2020, Dr Ali drew on his background in Immunology and Molecular Biology to create a new selection of clinical services – offering a range of fast, reliable and flexible Covid-19 testing solutions to individuals and organisations. As well as PCR and Rapid Covid-19 testing, he has since broadened the practise’s offering to include the latest technologies in Antibody and T cell testing products.


Dr Mark Ali qualified MBBS from University College Hospital School of Medicine in 1989 and was made a Fellow of the Royal College of Surgeons of England in 1993. He was accepted onto the prestigious London Pan Thames Surgical Rotation Scheme in 1995 and, upon completion, was accredited on the GMC specialist register as a cardiothoracic surgeon and was created a Specialist Fellow of the Royal College of Surgeons in 2002. He was also appointed as a consultant at La Pitie Salpetriere in Paris. Appointed as a consultant in the NHS in 2004, he has been a consultant in private practice since 2009. Dr Ali completed an intercalated BSc in Molecular Biology and Immunology in 1983; this was the start of a lifelong interest in the field of molecular medicine. When the global coronavirus pandemic struck in 2020, Dr Ali drew on his expertise and connections to the world of medical academia to assimilate the breaking research into the new virus, and continues to learn and write about the pandemic as it progresses.

Dr Mark Ali



Patient experience is at the heart of everything we do. Our team is dedicated to continually improving your testing experience with us, from start to finish.


We know how valuable your time is and we are proud to offer the fastest results turnaround times available, with a variety of testing location options.


Our Medical Director Consultant Cardiothoracic Surgeon Dr Mark Ali holds a degree in Molecular Biology and Immunology; his expertise underpins everything we do.


We are always researching new and innovative technology partners to offer our patients the most cutting edge tests and services.


We love hearing feedback from our customers. We'd be really grateful if you could take a minute to leave us a review on Google.