Ethan Cowan
Ethan Cowan, MD, MS
CDUHR - Associate Director, Infectious Disease Epidemiology and Social-behavioral Theory Core
Mount Sinai Beth Israel - Professor of Emergency Medicine, Icahn School of Medicine at Mount Sinai
Mount Sinai Beth Israel - Director of Research and Community Engagement
MD, New York University School of Medicine
MS, Clinical Research Methods, Albert Einstein College of Medicine
Research Interests
Public health, Program implementation, Screening, HCV, HIV, PrEP, PEP, Opioid use disorder, Research ethics, Social justice
Ethan Cowan is a Professor in the Department of Emergency Medicine at the Icahn Mount Sinai School of Medicine.  For the last 15 years, Dr. Cowan has used his formal training in clinical research methods to coordinate and conduct randomized controlled trials and cohort studies in the Emergency Department (ED). His focus area is the design, implementation and evaluation of public health interventions in the ED.  The intersection of public health, emergency response and research has also resulted in multiple empirical studies and conceptual work in ethics.  In the area of public health, Dr. Cowan has developed programs for HIV, HCV and STI screening in non-traditional settings.  Dr. Cowan’s work in public health has resulted in strong community partnerships with outpatient primary care physicians, specialists in infectious disease, addiction medicine and hepatitis C.  Dr. Cowan has strong working relationships with the New York City and New York State Departments of Health; the AIDS Institute Clinical Education Initiative and community partners such as the Latino Commission on AIDS.
Principal Investigator, PrEP Provision in the Emergency Department (PrEPPED) Trial. Active
Principal Investigator, PrEP-ED: PrEP Services in the Emergency Department for Hard-to-Reach Populations. Active
Principal Investigator, Safety and Efficacy of High Dose Buprenorphine Induction in Fentanyl Positive Emergency Department Patients. Active
Principal Investigator, Systems-Level Change for Normalizing Routine HIV Testing in High-Volume Health Care Settings (HRT). Active
Principal Investigator, Emergency Department Initiated Oral Naltrexone for Patients with Moderate to Severe Alcohol Use Disorder: A Pilot Feasibility Study. Completed


Justen M, Edelman EJ, Chawarski M, Coupet E, Cowan E, Lyons M, Owens P, Martel S, Richardson L, Rothman R, Whiteside L, O'Connor P, Zahn E, D'Onofrio G, Fiellin DA, Hawk KF (2023).
Perspectives on and experiences of emergency department-initiated buprenorphine among clinical pharmacists: A multi-site qualitative study
Journal of Substance Use and Addiction Treatment [Epub 2023 May 4]. doi: 10.1016/j.josat.2023.209058.

Cowan E, Brandspiegel S, Araki B, O'Brien-Lambert C, Merchant R, Buckler DG, Eiting E, Calderon Y (2023).
Relationship of hepatitis C risk to hepatitis C test acceptance among adult patients participating in an ED hepatitis C screening programme
Emergency Medicine Journal, 40 (5), 341-346. doi: 10.1136/emermed-2022-212726.

D'Onofrio G, Edelman EJ, Hawk KF, Chawarski MC, Pantalon MV, Owens PH, Martel SH, Rothman R, Saheed M, Schwartz RP, Cowan E, Richardson L, Salsitz E, Lyons MS, Freiermuth C, Wilder C, Whiteside L, Tsui JI, et al (2023).
Implementation facilitation to promote emergency department-initiated buprenorphine for opioid use disorder
JAMA Network Open, 6 (4), e235439. doi: 10.1001/jamanetworkopen.2023.5439. PMCID: PMC10077107.

Lyons MS, Chawarski MC, Rothman R, Whiteside L, Cowan E, Richardson LD, Hawk K, Tsui JI, Schwartz RP, O'Connor P, D'Onofrio G, Fiellin DA, Edelman EJ (2023).
Missed opportunities for HIV and hepatitis C screening among emergency department patients with untreated opioid use disorder
Journal of Addiction Medicine, 17 (2), 210-214. doi: 10.1097/ADM.0000000000001074.

Doran KM, Welch AE, Jeffers A, Kepler KL, Chambless D, Cowan E, Wittman I, Regina A, Chang TE, Parraga S, Tapia J, Diaz C, Gwadz M, Cleland CM, McNeely J (2023).
Study protocol for a multisite randomized controlled trial of a peer navigator intervention for emergency department patients with nonfatal opioid overdose
Contemporary Clinical Trials, 126, 107111. doi: 10.1016/j.cct.2023.107111.


Cowan EA, Macklin R (2014).
Is preexposure prophylaxis ready for prime time use in HIV prevention research?
AIDS, 28 (3), 293-295. doi: 10.1097/QAD.0000000000000055.

Cowan E, Leider J, Velastegui L, Wexler J, Velloza J, Calderon Y (2013).
A qualitative assessment of emergency department patients’ knowledge, beliefs, attitudes, and acceptance toward revised HIV testing strategies
Academic Emergency Medicine, 20 (3), 287-294. doi: 10.1111/acem.12090.

Dr. Cowan's MyBibliography Profile