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Caitlin Ryus, MD, MPH

Assistant Professor of Emergency Medicine
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Additional Titles

Co-Director of Yale Emergency Scholars Fellowship, Emergency Medicine

About

Titles

Assistant Professor of Emergency Medicine

Co-Director of Yale Emergency Scholars Fellowship, Emergency Medicine

Biography

Dr. Caitlin Ryus is an Assistant Professor in Emergency Medicine and Co-Director of the Yale Emergency Scholars Fellowship. She is a NIDA-funded Yale-Drug use, Addiction, and HIV prevention Research K12 Scholar (DAHRS) and is dual board-certified in Emergency Medicine and Addiction Medicine. Dr. Ryus earned her bachelor’s in psychology from Bryn Mawr College and MPH from Columbia University with a concentration in socio-medical sciences. Dr. Ryus received her MD from the Warren Alpert Medical School of Brown University and completed her emergency medicine residency and research fellowship through the Yale Emergency Scholars Program.

Her research integrates the disciplines of community-engaged research methods, health services research, and political epidemiology to examine how structural forces shape emergency care access and outcomes among unhoused patients and patients with substance use disorders. She is MPI on a National Institute of Nursing Research R01 examining the effects of non-congregate shelter modalities on psychiatric emergencies.

Dr. Ryus serves as Vice President of the Downtown Evening Soup Kitchen (DESK) and leads the Yale ED Homelessness Task Force– an interdisciplinary team of community organizations, government representatives, street medics, social workers, and people with lived experience of homelessness dedicated to improving ED care among unhoused patients in New Haven. She was honored with the 2026 Social Medicine Advocacy Award from the Academy of Women in Academic Emergency Medicine.

Last Updated on March 31, 2026.

Appointments

Other Departments & Organizations

Education & Training

Yale Emergency Scholars Fellowship
Yale School of Medicine (2022)
Residency
Yale New Haven Hospital (2021)
MD
Warren Alpert Medical School of Brown University (2017)
MPH
Columbia University Mailman School of Public Health, Socio-Medical Sciences (2010)
BA
Bryn Mawr College, Psychology (2006)

Advanced Training & Certifications

Addiction Medicine Board Certification
American Board of Preventative Medicine (2026)
Emergency Medicine Board Certified
American Board of Emergency Medicine (2022)

Research

Overview

Medical Research Interests

Addiction Medicine; Community-Based Participatory Research; Emergency Medicine; Health Policy; Health Services Research; Housing; Housing Instability; Ill-Housed Persons; Intimate Partner Violence; Poverty; Social Justice; Social Vulnerability

Public Health Interests

Health Policy; Substance Use, Addiction

Research at a Glance

Yale Co-Authors

Frequent collaborators of Caitlin Ryus's published research.

Publications

Featured Publications

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Academic Achievements & Community Involvement

Activities

  • activity

    Downtown Evening Soup Kitchen

    07/01/2022 - PresentPublic ServiceBoard of Directors

Clinical Care

Overview

Caitlin Ryus, MD, MPH, is an emergency physician at Yale Medicine with a focus on health equity, substance use disorders, and improving care for marginalized populations, particularly those experiencing homelessness. In her role, she treats a broad range of critical medical conditions, responding to patients in acute distress as well as those who experience barriers to routine care.

"I chose emergency medicine because it is a specialty that combines clinical care with public health." Dr. Ryus says. "What I find most rewarding is the ability to make an immediate impact, whether that’s providing life-saving interventions or connecting patients to services that address the root causes of their health issues."

As the co-director of the Yale Emergency Scholars Fellowship, she trains future leaders in academic emergency medicine, fostering their clinical skills alongside their research development.

Caitlin Ryus, MD, MPH is an assistant professor of Emergency Medicine at Yale School of Medicine.

Board Certifications

  • Emergency Medicine

    Certification Organization
    AB of Emergency Medicine
    Original Certification Date
    2022

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View this doctor's clinical profile on the Yale Medicine website for information about the services we offer and making an appointment.

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Contacts

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