Duncan Chair of Public Health Systems and is Associate Pro Vice Chancellor for Innovation at the University of Liverpool.

[1] Buchan's research focuses on health data science and informatics to enable better prevention, early intervention, and value of care for patients and populations.

[4] He also developed the Civic Data Cooperative,[5] which resulted in the Combined Intelligence for Population Health Action (CIPHA) system during the pandemic.

Later, he trained as a public health consultant while conducting research in medical informatics and pursuing doctoral studies in computational statistics.

[20] At Manchester, he also invented the FARSITE system,[21] helping spin out NW eHealth,[22] and started the #DataSavesLives movement and the Connected Health Cities project.

[1] Buchan's research areas encompass public health, data science, clinical informatics, epidemiology, and biostatistics.

[38] In Spring 2021, Buchan applied previous testing and other COVID-19 risk mitigation research to address the issue of young people being vaccinated last and missing out on social development opportunities due to the continued lockdown of significant cultural events.

[46] He drew attention to the problem of multimorbidity and the need for a unified modelling approach, not only for discovery science but also for personalized care via interactive Health Avatars.

[47] He has worked to make better use of routine health record data with combined biostatistics and machine learning approaches to predicting clinical outcomes.