Zach Gassoumis, PhD

Title(s)Assistant Professor of Family Medicine (Geriatric Researcher)
Address1000 S. Fremont Ave, Unit 22
Off Campus
Alhambra CA 91803
Phone+1 626 457 6692
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    Collapse Biography 
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    University of Durham, Durham, UKBSc06/2004Psychology & Anthropology
    University of Southern California, Los Angeles, CAPhD05/2014Gerontology

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    Zach Gassoumis, PhD, is an Assistant Professor of Family Medicine and Gerontology at the Keck School of Medicine of USC. He conducts research into various aspects of quality of life for older adults, with a primary focus on elder abuse, caregiving, and health & social services. His research focuses on improving the wellbeing of vulnerable populations and racial/ethnic minority groups, particularly his early work on economic security.

    Zach’s most recent research projects investigate service provision by adult protective services (APS), mandated reporting of elder abuse to APS, elder abuse in people with dementia, elder abuse multidisciplinary team (MDT) models, and caregiver support interventions. He holds a fellowship through the Robert Wood Johnson Foundation’s Interdisciplinary Research Leaders program and has affiliations with the National Center on Elder Abuse, National APS Technical Assistance Research Center, and National Elder Abuse MDT Training and Technical Assistance Center.

    Collapse Research 
    Collapse Research Activities and Funding
    Interdisciplinary Research Leaders Program
    Robert Wood Johnson Foundation Sep 15, 2019 - Sep 14, 2022
    Role: Fellow
    Role Description: Project Title: Making the Mandate Work: Reducing Disparities by Identifying and Overcoming Barriers to Reporting Elder Abuse to Adult Protective Services (with Stuart Lewis & Patricia Kimball)
    Uncovering the Causes, Contexts, and Consequences of Elder Mistreatment in People with Dementia
    NIH R01AG060096Aug 15, 2018 - Mar 31, 2023
    Role: Principal Investigator (Multi-PI with Laura Mosqueda)

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Improving forensics: Characterizing injuries among community-dwelling physically abused older adults. J Am Geriatr Soc. 2021 May 04. Yonashiro-Cho JMF, Gassoumis ZD, Wilber KH, Homeier DC. PMID: 33945150.
      View in: PubMed   Mentions:    Fields:    
    2. Anticipated Need for Future Nursing Home Placement by Sexual Orientation: Early Findings from the Health and Retirement Study. Sex Res Social Policy. 2021. Singleton M, Gassoumis ZD, Enguidanos S. View Publication.
    3. The Differential Effects of Caregiving Intensity on Overnight Hospitalization. West J Nurs Res. 2021 Mar 25; 1939459211002907. Meyer K, Gassoumis Z, Wilber K. PMID: 33764207.
      View in: PubMed   Mentions:    Fields:    
    4. Who is in the revolving door? Policy and practice implications of recurrent reports to adult protective services. J Elder Abuse Negl. 2020 Nov-Dec; 32(5):489-508. Rowan JM, Yonashiro-Cho J, Wilber KH, Gassoumis ZD. PMID: 33308080.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Toward a better understanding of the elder abuse forensic center model: comparing and contrasting four programs in California. J Elder Abuse Negl. 2019 Aug-Dec; 31(4-5):402-423. Yonashiro-Cho J, Rowan JM, Gassoumis ZD, Gironda MW, Wilber KH. PMID: 31423950.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    6. Elder Abuse Characteristics Based on Calls to the National Center on Elder Abuse Resource Line. J Appl Gerontol. 2020 10; 39(10):1078-1087. Weissberger GH, Goodman MC, Mosqueda L, Schoen J, Nguyen AL, Wilber KH, Gassoumis ZD, Nguyen CP, Han SD. PMID: 31364442.
      View in: PubMed   Mentions: 2     Fields:    
    7. What Can Elder Mistreatment Researchers Learn About Primary Prevention From Family Violence Intervention Models? Gerontologist. 2019 07 16; 59(4):601-609. Meyer K, Yonashiro-Cho J, Gassoumis ZD, Mosqueda L, Han SD, Wilber KH. PMID: 29190372.
      View in: PubMed   Mentions:    Fields:    Translation:HumansPHPublic Health
    8. What Are the Characteristics of Caregivers Logging in for Support Services? Innov Aging. 2019 Jan; 3(1):igz006. Meyer K, Gassoumis ZD, Kelly K, Benton D. PMID: 30949590.
      View in: PubMed   Mentions:
    9. Using Latent Class Analysis to Identify Profiles of Elder Abuse Perpetrators. J Gerontol B Psychol Sci Soc Sci. 2018 06 14; 73(5):e49-e58. DeLiema M, Yonashiro-Cho J, Gassoumis ZD, Yon Y, Conrad KJ. PMID: 28329841.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    10. What Are Strategies to Advance Policies Supporting Family Caregivers? Promising Approaches From a Statewide Task Force. J Aging Soc Policy. 2018 Jun 08; 1-19. Meyer K, Rath L, Gassoumis Z, Kaiser N, Wilber K. PMID: 29883273.
      View in: PubMed   Mentions: 1     Fields:    
    11. Research Protocol for Systematic Review and Meta-Analysis of Elder Abuse Prevalence Studies. Can J Aging. 2017 06; 36(2):256-265. Yon Y, Mikton C, Gassoumis ZD, Wilber KH. PMID: 28399951.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    12. The Prevalence of Self-Reported Elder Abuse Among Older Women in Community Settings: A Systematic Review and Meta-Analysis. Trauma Violence Abuse. 2019 04; 20(2):245-259. Yon Y, Mikton C, Gassoumis ZD, Wilber KH. PMID: 29333977.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    13. Elder abuse prevalence in community settings: a systematic review and meta-analysis. Lancet Glob Health. 2017 02; 5(2):e147-e156. Yon Y, Mikton CR, Gassoumis ZD, Wilber KH. PMID: 28104184.
      View in: PubMed   Mentions: 46     Fields:    Translation:Humans
    14. Community Discharge of Nursing Home Residents: The Role of Facility Characteristics. Health Serv Res. 2016 Apr; 51(2):645-66. Holup AA, Gassoumis ZD, Wilber KH, Hyer K. PMID: 26211390.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    15. Nursing Home Residents' Preferences on Physician Orders for Life Sustaining Treatment. Gerontologist. 2016 08; 56(4):714-22. Rahman AN, Bressette M, Gassoumis ZD, Enguidanos S. PMID: 26035903.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    16. Protecting victims of elder financial exploitation: the role of an Elder Abuse Forensic Center in referring victims for conservatorship. Aging Ment Health. 2015; 19(9):790-8. Gassoumis ZD, Navarro AE, Wilber KH. PMID: 25269384.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    17. Who transitions to the community from nursing homes? Comparing patterns and predictors for short-stay and long-stay residents. Home Health Care Serv Q. 2013; 32(2):75-91. Gassoumis ZD, Fike KT, Rahman AN, Enguidanos SM, Wilber KH. PMID: 23679659.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    18. Determining prevalence and correlates of elder abuse using promotores: low-income immigrant Latinos report high rates of abuse and neglect. J Am Geriatr Soc. 2012 Jul; 60(7):1333-9. DeLiema M, Gassoumis ZD, Homeier DC, Wilber KH. PMID: 22697790.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    19. Holding abusers accountable: an elder abuse forensic center increases criminal prosecution of financial exploitation. Gerontologist. 2013 Apr; 53(2):303-12. Navarro AE, Gassoumis ZD, Wilber KH. PMID: 22589024.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    20. Conversion diversion: participation in a social HMO reduces the likelihood of converting from short-stay to long-stay nursing facility placement. J Am Med Dir Assoc. 2010 Jun; 11(5):333-7. Thomas KE, Gassoumis ZD, Wilber KH. PMID: 20511100.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    21. Who are the Latino baby boomers? Demographic and economic characteristics of a hidden population. J Aging Soc Policy. 2010 Jan; 22(1):53-68. Gassoumis ZD, Wilber KH, Baker LA, Torres-Gil FM. PMID: 20390712.
      View in: PubMed   Mentions: 6     Fields:    Translation:HumansPHPublic Health
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    NIH Funding Acknowledgment: Important - All publications resulting from the utilization of SC CTSI resources are required to credit the SC CTSI grant by including the NIH funding acknowledgment and must comply with the NIH Public Access Policy.

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