Clinical Focus

  • Emergency Medicine
  • Emergency Medical Services

Academic Appointments

Administrative Appointments

  • Director of Pre-Hospital Care, Stanford Emergency Medicine (2017 - Present)

Professional Education

  • Board Certification: American Board of Emergency Medicine, Emergency Medical Services (2013)
  • Board Certification: American Board of Emergency Medicine, Emergency Medicine (2004)
  • Fellowship, University of Massachusetts, Emergency Medical Services / Disaster Medicine (2001)
  • Residency: University of Massachusetts Emergency Medicine Residency (1999) MA
  • Internship: University of Massachusetts General Surgery Residency (1996) MA
  • Medical Education: Rosalind Franklin University The Chicago Medical School (1995) IL

Community and International Work

  • Medical Director

    Partnering Organization(s)

    San Jose Fire Department

    Location

    Bay Area

    Ongoing Project

    Yes

    Opportunities for Student Involvement

    No

Contact

  • Academic
    marcg14@stanford.edu
    University - Academic staff Department: Emergency Medicine - Adult Clinical/Academic Position: Clinical Professor
    • 900 Welch Road
    • suite 350
    • Stanford,  California  94305 
  • Clinical (Primary)  Stanford Dept of Emergency Medicine 500 Pasteur Dr Stanford, CA 94305 (650) 723-0121 (fax)

Additional Clinical Info

Additional Info

  • Mail Code: 5119

2024-25 Courses

All Publications

  • SARS-CoV-2 IgG Seropositivity and Acute Asymptomatic Infection Rate Among Firefighter First Responders in an Early Outbreak County in California. Prehospital emergency care : official journal of the National Association of EMS Physicians and the National Association of State EMS Directors Newberry, J. A., Gautreau, M., Staats, K., Carrillo, E., Mulkerin, W., Yang, S., Kohn, M. A., Matheson, L., Boyd, S. D., Pinsky, B. A., Blomkalns, A. L., Strehlow, M. C., D'Souza, P. A. 2021: 1–10

    Abstract

    Objective: Firefighter first responders and other emergency medical services (EMS) personnel have been among the highest risk healthcare workers for illness during the SARS-CoV-2 pandemic. We sought to determine the rate of seropositivity for SARS-CoV-2 IgG antibodies and of acute asymptomatic infection among firefighter first responders in a single county with early exposure in the pandemic.Methods: We conducted a cross-sectional study of clinically active firefighters cross-trained as paramedics or EMTs in the fire departments of Santa Clara County, California. Firefighters without current symptoms were tested between June and August 2020. Our primary outcomes were rates of SARS-CoV-2 IgG antibody seropositivity and SARS-CoV-2 RT-PCR swab positivity for acute infection. We report cumulative incidence, participant characteristics with frequencies and proportions, and proportion positive and associated relative risk (with 95% confidence intervals).Results: We enrolled 983 out of 1339 eligible participants (response rate: 73.4%). Twenty-five participants (2.54%, 95% CI 1.65-3.73) tested positive for IgG antibodies and 9 (0.92%, 95% CI 0.42-1.73) tested positive for SARS-CoV-2 by RT-PCR. Our cumulative incidence, inclusive of self-reported prior positive PCR tests, was 34 (3.46%, 95% CI 2.41-4.80).Conclusion: In a county with one of the earliest outbreaks in the United States, the seroprevalence among firefighter first responders was lower than that reported by other studies of frontline health care workers, while the cumulative incidence remained higher than that seen in the surrounding community.

    View details for DOI 10.1080/10903127.2021.1912227

    View details for PubMedID 33819128