I joined LSHTM in September 2006 following completion of public health training in the UK NHS. Prior to entering the world of public health I was a General Practitioner. The focus of my work has been on the assessment of healthcare-related patient harm and understanding the mechanisms that drive that harm.

I was PI on the Preventable Incidents, Survival and Mortality studies that determined the scope and scale of avoidable deaths in the English NHS acute hospitals and the utility of mortality review for quality improvement. I have a national advisory role related to the implementation of the National Mortality Case Record Review Programme across English hospitals.

From 2017-2020 I was a Health Foundation Improvement Science Fellow. The focus of the 3 year fellowship was on understanding how safety might be conceptualised and strengthened in different health and care settings.

From January 2019 I become an Associate Director for the Quality, Safety and Outcomes of Health and Social Care Policy Research Unit leading on the patient safety theme. I have been examining how NHS Trusts are learning from mortality reviews, the feasibility of implementing a framework for assessing resident safety in care homes and safety governance in integrated care systems.