Contact information
Kate Markham
kate.markham@phc.ox.ac.uk
Colleges
Research groups
John Powell
MA MB BChir MSc PhD PGCertMedEd MRCPsych FFPH FFCI
Professor of Digital Health
- Professor of Digital Health Care
- NIHR Senior Investigator
- Senior Research Fellow, Jesus College
- Consultant Public Health Physician
- Digital Health Theme Lead, NIHR ARC
- Digital Health Theme Lead, NIHR HRC
- Co-Academic Director, MSc in Applied Digital Health
For prospective DPhil and MSc students
Please direct any questions about the MSc in Applied Digital Health to the Course Coordinator, Vivian Ansell vivian.ansell@phc.ox.ac.uk
Please direct any questions about DPhil applications to the Graduate Studies Officer, Daniel Long daniel.long@phc.ox.ac.uk
I am not currently taking on any new DPhil students, sorry.
Background and current work
John Powell is an academic public health physician studying healthcare in the digital age and how and why people use information and communication technologies in relation to health, and how services can harness digital and AI tools to deliver benefit. He has combined an academic career as Professor and NIHR Senior Investigator at the University of Oxford with national policy roles, most recently as a senior clinician at NICE, where he advised the NHS on the safe adoption of innovations in surgery, and on the appraisal of digital health technologies. He is an expert adviser to national agencies including PHE and MHRA. He is an Honorary Professor at the University of Bristol, and the former Editor-in-Chief of NIHR Health Technology Assessment and NIHR Efficacy & Mechanism Evaluation. He has worked as a comedy writer and as a television drama advisor where his credits include Downton Abbey and the movie Ammonite. He was formerly Professor of Public Health at the University of Warwick where he helped establish the Institute for Digital Healthcare. He was the Clinical Director of NHS Choices, the NHS website. He has degrees in Social and Political Sciences and in Clinical Medicine from the University of Cambridge. He has an H-index of 61.
Summary CV and publications list
- Publications
- PDF document 185.0 KB
Summary CV and publications list
Key publications
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The impact of social media influencers on health outcomes: Systematic review.
Journal article
Powell J. and Pring T., (2023), Soc Sci Med, 340
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Adoption and Use of the NHS App in England: a mixed-methods evaluation.
Journal article
Kc S. et al, (2023), Br J Gen Pract, 73
Recent publications
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"In Their Own Words": A Qualitative Exploration of Lived Experience and Healthcare Professional Perspectives on Evaluating a Digital Intervention for Binge Eating.
Journal article
Murphy R. et al, (2025), Int J Eat Disord
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Qualitative evaluation of the implementation and national roll-out of the NHS App in England.
Journal article
Reidy C. et al, (2025), BMC Med, 23
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The Digital Health Competencies in Medical Education Framework: An International Consensus Statement Based on a Delphi Study.
Journal article
Car J. et al, (2025), JAMA Netw Open, 8
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Differences in Use of a Patient Portal Across Sociodemographic Groups: Observational Study of the NHS App in England.
Journal article
Kc S. et al, (2024), J Med Internet Res, 26
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The effectiveness of mobile app usage in facilitating weight loss: An observational study.
Journal article
Huntriss R. et al, (2024), Obes Sci Pract, 10
