Job Title: Director of Population Health, Microsoft
Bio: Geraint Lewis, M.A., M.Sc., F.R.C.P., F.F.P.H., is a public health physician and is currently the director of Population Health at Microsoft. He qualified in medicine from Cambridge University, and worked as a junior doctor in London and Sydney before beginning higher specialist training in Public Health Medicine. Working at Croydon Primary Care Trust between 2004 and 2006, Lewis developed and implemented the virtual wards project. After leaving Croydon, he became a visiting fellow at the King's Fund and policy advisor at the UK Cabinet Office, before spending the 2007-08 academic year as a Commonwealth Fund Harkness Fellow at New York University. At NYU, his research explored how predictive modeling is being used in the United States. Lewis was the 2008 recipient of the National Directors' Award at the Veterans Health Administration in Washington, D.C. His current interests include the development of predictive models for social care and predicting the impact of preventive interventions.
Placement: New York University
Mentors: David Olds, Ph.D.; John Billings, J.D.
Project: Predictive Risk Modeling: Implications for Improving Access, Quality, and Cost-Effectiveness of "Upstream" Care
Description: Lewis evaluated the current use of predictive risk modeling in the United States for targeting upstream care. He undertook more than 30 semi-structured interviews with policy-makers, academics, vendors, consultants, providers and payers. As a second project, he developed a predictive tool to estimate the capacity of individual pregnant mothers to benefit from the Nurse Family Partnership — a program of prenatal and infancy home visiting for socially disadvantaged mothers bearing first children. To develop the tool, he used longitudinal data from three randomized controlled trials of the program.