The housing crisis is fundamentally a health problem. Decades of research show that people experiencing homelessness spend twice as long in the hospital, cost the healthcare system double and have a life expectancy half that of the average Canadian. In this special episode of Solve for X: Innovations to Change the World, recorded live at a MaRS Morning event, host Manjula Selvarajah sits down with primary care physician Dr. Andrew Boozary to discuss a radical shift in Canadian medicine: treating housing not just as a social service, but as a critical medical intervention. As founding executive director of UHN’s Gattuso Centre for Social Medicine, Boozary shares data-driven insights from his initiatives there: prescribing nutritious food boxes, the launch of Ontario’s first hospital-based homelessness and eviction program and, most famously, the establishment of Dunn House, a permanent supportive housing model that’s proven to be both effective and scalable. Together, Selvarajah and Boozary explore what it takes to dismantle bureaucratic sludge, cut through systematic fragmentation and build a healthcare system rooted in human dignity.

Dr. Andrew Boozary is a primary care physician and the founding executive director of the Gattuso Centre for Social Medicine at University of Health Network (UHN). At the forefront of health equity and public policy, his work focuses on integrating social determinants of health — such as housing, income and food security — directly into patient care. Boozary has spearheaded pioneering social medicine models including Toronto’s modular permanent supportive housing project, Dunn House, establishing crucial healthcare interventions that drastically improve health outcomes while reducing healthcare costs. In 2026, he received a Governor General’s Innovation Award for developing Dunn House.

Further reading

Dr. Andrew Boozary on expanding social medicine housing model Dunn House
Pathologies of poverty: The need for housing
Dunn House gave homeless ER patients a home and saved Toronto hospitals millions. Now they’re building another one
How did social medicine evolve, and where is it heading?

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Solve for X is brought to you by MaRS, North America’s largest urban innovation hub and a registered charity. MaRS supports startups and accelerates the adoption of high-impact solutions to some of the world’s biggest challenges. For more information, visit marsdd.com.