Casualty First is now open on an appointment only basis, Monday to Friday 8am – 6pm and Saturday 12th/19th of December 8am – 6pm.
To book an appointment, click here.

We are offering Outpatient appointments. In many cases these can be conducted virtually. To make an appointment, please call: 0207 806 4060.

Do NOT visit the Hospital if you have any COVID-19 symptoms. Please visit the Track and Trace website.


Professor Margaret Johnson

Professor Margaret Johnson

Qualifications: MD FRCP Higher Professional Training in General Medicine & Thoracic Medicine

Expertise: General Thoracic Medicine, COPD, Asthma, Cough, pulmonary emboli, pulmonary hypertension, Bronchoscopy, Respiratory Infection including TB, Sarcoid, Interstitial Lung Disease, Lung cancer & HIV/AIDS

NHS: Royal Free London NHS Foundation Trust

Contact info and availability

Telephone Number: 020 7806 4062

Email Address:
Alternative Email Address:

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Consultant Biography

Professor Margaret Johnson is one of the UK’s leading consultants in Thoracic medicine, practicing at the Royal Free London NHS Foundation Trust and the Hospital of St John & St Elizabeth. She trained at the Brompton Hospital where she did her MD on Breathlessness. She has been working as a consultant in Thoracic (Respiratory) Medicine/ General Medicine and HIV/AIDS for over 20 years, has been the Clinical Director of Medicine and Medical Director at the Royal Free. She has just demitted as Academic Vice President of the Royal College of Physicians. She is now Clinical Director of the North Thames Research Network (NIHR).

In 2005 she was made Professor in Medicine at University College, London. She was Chairman of British HIV Association from 2004 – 2008.

Since her appointment at the Royal Free, she has been an active researcher in the field of respiratory infection, TB and HIV. She has published in excess of 500 articles in peer reviewed journals.