Implementation of Mobile Medical Units for Veterans Experiencing Homelessness: A Mixed-Methods Study.

Objectives: Mobile medical units (MMUs) provide health care services in the community to reach populations with geographic, financial, and other barriers to care. The US Department of Veterans Affairs (VA) Homeless Patient Aligned Care Team (HPACT) program deployed MMUs to 25 sites in fiscal year 20...

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Published in:Public Health Reports Vol. 140; no. 5/6; pp. 568 - 577
Main Authors: Yoon, Jean, Wong, Emily P., Weber, Jillian J., Blonigen, Daniel M., Tsai, Jack
Format: Article
Published: Sage Publications Inc. Sep/Nov2025
Subjects:
Online Access:View this record in EBSCOhost
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        atl: Implementation of Mobile Medical Units for Veterans Experiencing Homelessness: A Mixed-Methods Study.
      aug:
        au:
          Yoon, Jean
          Wong, Emily P.
          Weber, Jillian J.
          Blonigen, Daniel M.
          Tsai, Jack
        affil:
          Health Economics Resource Center, VA Palo Alto Health Care System, Menlo Park, CA, USA
          Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, CA, USA
          School of Medicine, Department of General Internal Medicine, University of California at San Francisco, San Francisco, CA, USA
          VHA Homeless Programs Office, US Department of Veterans Affairs, Washington, DC, USA
          Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
          School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
      su:
        United States. Dept. of Veterans Affairs
        Substance abuse risk factors
        Community health services
        World Wide Web
        Internet access
        Human services programs
        Education
        African Americans
        Sex distribution
        Working hours
        Veterans
        Government programs
        Analysis of variance
        Communication
        Homelessness
        Housing
        Medical screening
        Medical care use
        Pearson correlation (Statistics)
        Medical prescriptions
        Endowments
        Research funding
        Mobile hospitals
        Drug administration
        Hospital emergency services
        Chi-squared test
        Descriptive statistics
        Equipment maintenance & repair
        Telemedicine
        Surveys
        Research methodology
        Medical appointments
        Medical records
        Application software
        Comparative studies
        Comorbidity
        Veterans' hospitals
      sug:
        subj:
          Substance abuse risk factors
          Community health services
          World Wide Web
          Internet access
          Human services programs
          Education
          African Americans
          Sex distribution
          Working hours
          Veterans
          Government programs
          Analysis of variance
          Communication
          Homelessness
          Housing
          Medical screening
          United States. Dept. of Veterans Affairs
          Software Publishers
          Software publishers (except video game publishers)
          Custom Computer Programming Services
          Community health centres
          All Other Outpatient Care Centers
          Residential Mental Health and Substance Abuse Facilities
          Other Individual and Family Services
          Other local, municipal and regional public administration
          All Other Miscellaneous Schools and Instruction
          Administration of Education Programs
          Educational Support Services
          Grantmaking Foundations
          Other Community Housing Services
          All Other Miscellaneous Ambulatory Health Care Services
          Administration of Veterans' Affairs
          General (except paediatric) hospitals
          Internet Publishing and Broadcasting and Web Search Portals
          Medical care use
          Pearson correlation (Statistics)
          Medical prescriptions
          Endowments
          Research funding
          Mobile hospitals
          Drug administration
          Hospital emergency services
          Chi-squared test
          Descriptive statistics
          Equipment maintenance & repair
          Telemedicine
          Surveys
          Research methodology
          Medical appointments
          Medical records
          Application software
          Comparative studies
          Comorbidity
          Veterans' hospitals
      keyword:
        homeless
        implementation
        mobile medical units
        veterans
        homeless
        implementation
        mobile medical units
        veterans
      ab: Objectives: Mobile medical units (MMUs) provide health care services in the community to reach populations with geographic, financial, and other barriers to care. The US Department of Veterans Affairs (VA) Homeless Patient Aligned Care Team (HPACT) program deployed MMUs to 25 sites in fiscal year 2024 to increase access for veterans experiencing homelessness. We examined early implementation of MMUs in HPACT sites by describing implementation and operational issues, services provided, and characteristics of veterans who used MMUs. Methods: To examine the implementation of MMUs on veterans experiencing homelessness, we conducted a mixed-methods study using an online survey and health care administrative data. Measures included MMU implementation time, staffing type, services, safety measures, maintenance costs, and characteristics of veterans using and not using MMUs. We examined differences between veterans who used MMUs and those who did not. Results: Seventeen of 25 sites responded to the survey; MMU implementation occurred during a mean of 147 hours in 5 months. Most sites (15 of 17) visited housing sites and homeless shelters in community- and VA-supported programs to provide health screenings, education, and medication administration and prescribing. Operating costs varied widely for vehicle maintenance and gas and medical and telehealth equipment. Veterans who used MMUs (vs did not use MMUs) had more medical comorbidities (Elixhauser score of 3.4 vs 2.8), were more likely to have substance use disorder (49.9% vs 39.1%), and had higher baseline levels of health care use, especially emergency department visits (0.4 vs 0.3 visits per quarter). Conclusions: Evidence on the effects of MMUs on patient engagement with primary and mental health care and acute care use is needed to inform decisions to implement MMUs.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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