Ryan McNeil, PhD
Associate Professor of Medicine (General Medicine)Cards
Appointments
Additional Titles
Director of Harm Reduction Research, Program in Addiction Medicine
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Appointments
Additional Titles
Director of Harm Reduction Research, Program in Addiction Medicine
Contact Info
Appointments
Additional Titles
Director of Harm Reduction Research, Program in Addiction Medicine
Contact Info
About
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Titles
Associate Professor of Medicine (General Medicine)
Director of Harm Reduction Research, Program in Addiction Medicine
Biography
Dr. McNeil's research examines how forces operating within the risk environments of people who use drugs shape risk and harm. He has led studies examining: (1) social, structural, and environmental influences on the implementation and effectiveness of harm reduction and addiction treatment interventions, including supervised consumption services; (2) the influence of housing and housing-based interventions on overdose-related risks; (3) approaches to the management of stimulant use disorders. His foundational research on harm reduction approaches, including supervised consumption services and safe supply, has been instrumental to informing their scale-up.
Dr. McNeil regularly provides expert advice to health care organizations and governments on the development, implementation, and optimization of harm reduction and addiction treatment interventions. Pursuant to the goal of meaningfully involving people who use drugs in all stages of the research process, he actively collaborates with community-based organizations, including peer-driven drug user, sex worker, and tenant rights organizations, to align his research with community priorities and provide opportunities for people with lived experience to co-lead and engage in research.
Appointments
General Internal Medicine
Associate Professor on TermPrimarySocial and Behavioral Sciences
Assistant ProfessorSecondary
Other Departments & Organizations
Research
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Overview
Medical Research Interests
Public Health Interests
Research at a Glance
Research Interests
Publications
2026
Displacement and the disruption of drug use patterns and risks: Experiences of people living with HIV in two urban neighbourhoods
Chayama K, Narayan P, McNeil R, Boyd J, McDougall P, Board D, Knight R. Displacement and the disruption of drug use patterns and risks: Experiences of people living with HIV in two urban neighbourhoods. International Journal Of Drug Policy 2026, 152: 105279. PMID: 42061343, DOI: 10.1016/j.drugpo.2026.105279.Peer-Reviewed Original ResearchCitationsA qualitative study of the impacts of a government crackdown against revenue sharing between pharmacies and patients in Vancouver, Canada
Singh Kelsall T, Mullins G, Dempsey H, McNeil R, Kerr T. A qualitative study of the impacts of a government crackdown against revenue sharing between pharmacies and patients in Vancouver, Canada. Discover Public Health 2026, 23: 517. PMID: 42007025, PMCID: PMC13086815, DOI: 10.1186/s12982-026-01699-3.Peer-Reviewed Original ResearchHaunted houses: Using photovoice to understand emotional geographies in single room occupancy housing
Fleming T, Boyd J, Kerr T, McNeil R. Haunted houses: Using photovoice to understand emotional geographies in single room occupancy housing. Social Science & Medicine 2026, 396: 119106. PMID: 41740372, PMCID: PMC13034861, DOI: 10.1016/j.socscimed.2026.119106.Peer-Reviewed Original ResearchAltmetric
2025
A qualitative study exploring motives for the transition from injecting to smoking drugs in Vancouver, British Columbia
Bonn M, Kerr T, Boyd J, Rudzinski K, McNeil R, Ivsins A. A qualitative study exploring motives for the transition from injecting to smoking drugs in Vancouver, British Columbia. International Journal Of Drug Policy 2025, 145: 104982. PMID: 40946388, PMCID: PMC13034854, DOI: 10.1016/j.drugpo.2025.104982.Peer-Reviewed Original ResearchCitationsAltmetricBarriers and facilitators to injectable opioid agonist treatment engagement within a structural vulnerability context: a qualitative study of patient experiences in Vancouver, Canada
Mayer S, Fairbairn N, Fowler A, Boyd J, Kerr T, McNeil R. Barriers and facilitators to injectable opioid agonist treatment engagement within a structural vulnerability context: a qualitative study of patient experiences in Vancouver, Canada. Harm Reduction Journal 2025, 22: 116. PMID: 40615907, PMCID: PMC12228173, DOI: 10.1186/s12954-025-01262-4.Peer-Reviewed Original ResearchCitationsAltmetricA critical examination of ‘family’ caregiving at the end of life in contexts of homelessness: Key concepts and future considerations
Mollison A, Stajduhar K, Gagnon M, McNeil R. A critical examination of ‘family’ caregiving at the end of life in contexts of homelessness: Key concepts and future considerations. Palliative Care And Social Practice 2025, 19: 26323524251336765. PMID: 40371322, PMCID: PMC12075969, DOI: 10.1177/26323524251336765.Peer-Reviewed Original ResearchCitationsAltmetricReimagining subjectivities in place: Necropolitical logics of safer supply and housing in Vancouver's Downtown Eastside
Fleming T, Boyd J, McNeil R. Reimagining subjectivities in place: Necropolitical logics of safer supply and housing in Vancouver's Downtown Eastside. Social Science & Medicine 2025, 372: 117930. PMID: 40088666, PMCID: PMC12036833, DOI: 10.1016/j.socscimed.2025.117930.Peer-Reviewed Original ResearchCitationsAltmetricAcceptability of long-acting antiretroviral therapy among people living with HIV who use drugs in Vancouver, Canada: A qualitative study
Chayama K, Ng C, Brohman I, Mansoor M, Small W, Philbin M, Collins A, McNeil R. Acceptability of long-acting antiretroviral therapy among people living with HIV who use drugs in Vancouver, Canada: A qualitative study. PLOS ONE 2025, 20: e0319010. PMID: 40019916, PMCID: PMC11870339, DOI: 10.1371/journal.pone.0319010.Peer-Reviewed Original ResearchCitationsAltmetric“None of It Turned Out the Way She Wanted, So It Left a Hole in Me”: Informal Caregiving at the End of Life in Contexts of Inequity
Mollison A, Gagnon M, McNeil R, Stewart A, Giesbrecht M, Bourgeois A, Stajduhar K. “None of It Turned Out the Way She Wanted, So It Left a Hole in Me”: Informal Caregiving at the End of Life in Contexts of Inequity. Health & Social Care In The Community 2025, 2025 DOI: 10.1155/hsc/8788241.Peer-Reviewed Original ResearchCitations
2024
‘It just doesn't stop’: Perspectives of women who use drugs on increased overdoses during the COVID‐19 pandemic
Speed K, McNeil R, Hayashi K, Maher L, Boyd J. ‘It just doesn't stop’: Perspectives of women who use drugs on increased overdoses during the COVID‐19 pandemic. Drug And Alcohol Review 2024, 44: 602-612. PMID: 39703005, PMCID: PMC11813672, DOI: 10.1111/dar.13996.Peer-Reviewed Original ResearchCitationsAltmetric
Academic Achievements & Community Involvement
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Honors
honor Highly Cited Researcher (Crossfield)
11/12/2025International AwardClarivatehonor Highly Cited Researcher (Crossfield)
11/19/2024International AwardClarivatehonor Canadian Hillman Prize
03/26/2020International AwardSidney Hillman FoundationDetailsCanadahonor Radio Impact Award
11/02/2019International AwardThird Coast International Audio Festivalhonor Scholar Award
07/01/2016International AwardMichael Smith Foundation for Health ResearchDetailsCanada
News
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News
- November 12, 2025
Twenty-Seven YSM Faculty Members Recognized for Highly Cited Research
- April 30, 2023Source: The Washington Post
Artist’s death spotlights peril posed by xylazine-fentanyl mix
- April 20, 2023Source: The Washington Post
Experts slam plan to sell overdose antidote Narcan at about $50 a kit
- October 31, 2022
Several Yale Program in Addiction Medicine Faculty Members Receive New NIH HEAL Initiative Awards
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