• Affiliate Professor, Global Health
  • Executive Director and Principal Investigator, Lighthouse Trust
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Professor Sam Phiri is a Clinician, Clinical Epidemiologist, and Principal Investigator for Lighthouse Trust in Lilongwe, Malawi with over 17 years’ experience of strategic HIV Program design and Implementation. As Executive Director, he provides strategic leadership to the Lighthouse. As a research scientist, he plays a leadership role in the design, implementation, and results dissemination of Implementation Science. Under his leadership, Lighthouse has been recognized as a World Health Organization Centre of Excellence in integrated HIV prevention, treatment and care. The Lighthouse innovations and initiatives are used to inform both national and international HIV- associated policies. He is a Professor in the Department of Medicine at University of North Carolina School Of Medicine at Chapel Hill and Department of Global Health at University of Washington, Seattle in USA and a Senior Lecturer, Department of Public Health, College of Medicine, School of Public Health and Family Medicine, University of Malawi, Malawi. His interests are in integration of HIV Prevention, Treatment, Care and Support programs including TB/HIV integration, Family Planning, and NCDs.

  • PhD (London School of Hygiene & Tropical Medicine (UK))
  • MSc (London School of Hygiene & Tropical Medicine (UK))
Country Affiliations 
Health Topics 
  • Cervical Cancer
  • Clinical Mentoring
  • Education and Training
  • Epidemiology
  • Family Planning
  • Health Systems Strengthening and Human Resources Development
  • Implementation Science
  • Quality Improvement
DGH Centers, Programs and Initiatives and Affiliated Organizations 

Sam Phiri, PhD, MSc, DCM, Hannock Tweya, PhD, MSc, Monique van Lettow, PhD, et al. Impact of Facility- and Community-Based Peer Support Models on Maternal Uptake and Retention in Malawi’s Option B+ HIV Prevention of Mother-to-Child Transmission Program: A 3-Arm Cluster Randomized Controlled Trial (PURE Malawi). J Acquir Immune Defic Syndr 2017; 75:S140–S148

Phiri S, Neuhann F, Glaser N, et al. The path from a volunteer initiative to an established institution: evaluating 15 years of the development and contribution of the Lighthouse trust to the Malawian HIV response. BMC Health Serv Res. 2017 Aug 9;17(1):548

Phiri S, Feldacker C, Chaweza T, et al. Integrating reproductive health services into HIV care: strategies for successful implementation in a low-resource HIV clinic in Lilongwe, Malawi. J Fam Plann Reprod Health Care. 2015 Apr 22.

S. Phiri, P. Y. Khan, A. D. Grant, et al. Integrated tuberculosis and HIV care in a resource-limited setting: experience from the Martin Preuss centre, Malawi. 2 AUG 2011

Tweya H, Feldacker C, Gadabu OJ, et al. Developing a point-of-care electronic medical record system for TB/HIV co-infected patients: experiences from Lighthouse Trust, Lilongwe, Malawi. BMC Res Notes. 2016 Mar 5;9:146.