Dr Ashworth qualified in medicine from Southampton University, having previously obtained an intercalated degree in Psychology. He trained in general medical specialities in Nottingham where he also gained his first experience in intensive care. In order to pursue a career in intensive care he moved to London where he trained in anaesthesia and intensive care at a number of hospitals including Charing Cross, Hammersmith, The Royal Marsden, The National Hospital for Neurology and Neurosurgery at Queen Square,The Royal Brompton, and St Mary’s.=
He was appointed as a consultant at St Mary’s in 2002. He was the lead clinician for interhospital transfers from 2003 for the north west London critical care network, and wrote the original critical care transfer course. He also developed documentation and guidelines that are now used London wide. He was first lead clinician in intensive care in 2012, and was appointed head of speciality for critical care in 2015.
Dr Ashworth is is an expert in ICU informatics. He has been a collaborator in the successful NIHR Health Informatics Collaboration Intensive Care theme led by Prof Mervyn Singer for developing a research database for intensive care, and sits on the AHSC Research Informatics Committee. He has undertaken work as an expert witness and has completed the Cardiff University Bond Solon Expert Witness training course. He is an expert in the management of multi-drug resistant infections in ICU, and has a wide range of other critical care clinical interests including major incident planning, sepsis, weaning, the endocrinology of critical illness, neurological and trauma intensive care and is the Chairman of the Critical Care Infection Prevention and Control Committee.