Research Mission

Street Medicine staff presenting at a conference

USC Street Medicine Research is dedicated to leading and collaborating in research and quality improvement work focused on the health, wellbeing, and dignity of people experiencing unsheltered homelessness and the individuals who support them. We are interested in person-centered models of care, services, and education that use a multidisciplinary approach and are guided by people with lived experience with homelessness.

Research Team

Our research team is a diverse, interprofessional group trained in medicine, health services research, gerontology, social work, anthropology, education, and policy. Our work is guided by the expertise of people with current and former lived experience with homelessness. Together, we are committed to designing, conducting, and disseminating impactful research that contributes to the scientific basis of Street Medicine and promotes high-quality care for people experiencing unsheltered homelessness. 


Active Studies

Our current research projects focus on the following priority areas:

  • Hepatitis C
  • Aging and Older Adults
  • Reproductive Health
  • Pharmacotherapy with Long-acting Injectable Antipsychotic Medication
  • HOUSED BEDS Assessment
  • Clinical Guidelines for Street Medicine
  • Education and Training

We are always looking for new research collaborators and to embark on new projects. If you are interested in learning more about USC Street Medicine Research, please contact our team at:

Learners and trainees interested in research opportunities with USC Street Medicine Research may submit an interest form here.

Support our work

Philanthropic contribution of any giving level for street medicine research, in general, and for a particular topic, specifically, will support the conduct of scholarly research and growth of the scientific evidence-base behind street medicine. Please visit our Support page to learn more .

Publications and Media


  • Prevalence and Need

    • Feldman B, Calogero C, Elsayed K, Abbasi O, Enyart J, Friel T, Dusza S, Greenberg MR. Prevalence of Homelessness in the ED Setting.West J Emerg Med. 2017 Apr;18(3):366-372. doi: 10.5811/westjem.2017.1.33054. Epub 2017 Mar 7. PMID#:28435486
    • Feldman BJ, Craen AM, Enyart J, Batchelor T, Friel TJ, Dusza SW, Greenberg MR. Prevalence of Homelessness by Gender in an Emergency Department Population in Pennsylvania. J Am Osteopath Assoc. 2018 Feb 1;118(2):85-91. doi: 10.7556/jaoa.2018.023. PMID: 29379974.

    Street Medicine Model

    • Stefanowicz M, Feldman B, Robinson J. House Calls Without Walls: Street Medicine Delivers Primary Care to Unsheltered Persons Experiencing Homelessness. Ann Fam Med. 2021 Jan-Feb;19(1):84. doi: 10.1370/afm.2639. PMID: 33431400; PMCID: PMC7800740.
    • Feldman BJ, Kim JS, Mosqueda L, Vongsachang H, Banerjee J, Coffey CE Jr, Spellberg B, Hochman M, Robinson J. From the hospital to the streets: Bringing care to the unsheltered homeless in Los Angeles. Healthc (Amst). 2021 Sep;9(3):100557. doi: 10.1016/j.hjdsi.2021.100557. Epub 2021 May 27. PMID: 34052622.
    • Feldman BL, Feldman CT, Coulourides Kogan A, Saluja S, Cousineau M. The California Street Medicine Landscape Survey and Report. California Health Care Foundation. March 2023. 

    Clinical Guidelines for Street Medicine

    • Feldman CT, Feldman BJ, Hunt JJ. HOUSED BEDS: A Clinical Tool for Taking a History on an Unsheltered Homeless Patient. doi: 10.17605/OSF.IO/USCE9
    • Feldman, C. Acne Keloidalis Nuchae. Clinical Advisor (2018): Retrieved from Accessed June 6, 2018.
    • Karashin H, Feldman C, Feldman B, Schwendeman L. (2018) Hypertension. Alternative Clinical Guidelines for the Street. Street Medicine Institute, Pittsburgh, PA.
    • Karashin H, Feldman C, Feldman B, Schwendeman L. (2018) Asthma. Alternative Clinical Guidelines for the Street. Street Medicine Institute, Pittsburgh, PA.

    Education and Training

    • Feldman C, Morici B, Goodrich S. Early exposure to underserved patients and its impact on initial employment decisions in physician assistants. JPAE. 2018;29(3):144-48.
    • Lowe E, Kogan AC, Feldman CT, Ma SB, Lie DA. Preceptors’ preparedness to teach about substance and opioid use disorder: a qualitative study. BMC Med Educ. 2022 Dec 14;22(1):867. doi: 10.1186/s12909-022-03922-6. PMID: 36517790; PMCID: PMC9749622.

    Behavioral Health

    • Su KY, Feldman BJ, Feldman CT, Saluja S, Coulourides Kogan AM, Cousineau MR. Behavioral Health Care Delivery Through Street Medicine Programs in California. Community Mental Health Journal. Aug 2023. PMID: 37526807
    • Cuadrado N, Connor S, Feldman C, Marfisee M. Service Learning. In: Kayingo G, Hass V, eds. The Health Professions Educator: A Practical Guide for New and Established Faculty. p167-176. New York, NY: Springer Publishing Company. ISBN#978-0-8261-7718-6