Dr Margarita Burmester is a consultant paediatrician at the Royal Brompton and Harefield NHS Foundation Trust, where she serves as the director of paediatric intensive care. She also sees patients privately at The Portland Hospital, 77 Wimpole Street, and through the Bright Futures programme at the Chiswick Medical Centre. Additionally, Dr Burmester is an honorary senior lecturer at the National Heart and Lung Institute, Imperial College London.

Dr Burmester is an expert in critical care for children, including cardiac intensive care, child health education, health screening and surveillance, and preventative care. She has extensive experience, having worked at the Toronto Hospital for Sick Children in Canada, Great Ormond Street Hospital in London, and Boston Children's Hospital at Harvard University in the USA.

In 2016, Dr Burmester completed her postgraduate certification in clinical education. She is a Fellow of the Higher Education Authority and a member of the Academy of Medical Educators. Passionate about preventing ill health, she co-founded and directs the UK Bright Futures programme, an extensive health surveillance and screening initiative based on the American Academy of Pediatrics model.

Dr Burmester has published multiple articles, delivered numerous lectures and workshops, and is a co-recipient of a Wellcome Trust award. She contributes to national strategy by advising the national paediatric critical care clinical reference group and serves as vice president of the Paediatric Intensive Care Society (PICS). Since 2018, she has been the president of the paediatric section of the Royal Society of Medicine.

Her areas of expertise include general paediatrics, paediatric intensive care, child health education, and health screening and surveillance. Dr Burmester has been dedicated to her field since her appointment and continues to make significant contributions to paediatric healthcare.