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


Whiteside LK, D'Onofrio G, Fiellin DA, Edelman EJ, Richardson L, O'Connor P, Rothman RE, Cowan E, Lyons MS, Fockele CE, Saheed M, Freiermuth C, Punches BE, Guo C, Martel S, Owens PH, Coupet E, Hawk KF (2022).
Models for implementing emergency department-initiated buprenorphine with referral for ongoing medication treatment at emergency department discharge in diverse academic centers
Annals of Emergency Medicine, 80 (5), 410-419. doi: 10.1016/j.annemergmed.2022.05.010. PMCID: PMC9588652.

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 (2022).
Missed opportunities for HIV and hepatitis C screening among emergency department patients with untreated opioid use disorder
Journal of Addiction Medicine [Epub 2022 Sep 28]. doi: 10.1097/ADM.0000000000001074.

Shastry S, Counts C, Shegog E, Loo G, Cowan E (2022).
Emergency department utilization patterns in patients with opioid-related emergency department visits
Substance Use and Misuse, 57 (6), 995-998. doi: 10.1080/10826084.2022.2046098. PMCID: PMC9227955.

Hawk K, McCormack R, Edelman EJ, Coupet E, Toledo N, Gauthier P, Rotrosen J, Chawarski M, Martel S, Owens P, Pantalon MV, O'Connor P, Whiteside LK, Cowan E, Richardson LD, Lyons MS, Rothman R, Marsch L, Fiellin DA, D'Onofrio G (2022).
Perspectives about emergency department care encounters among adults with opioid use disorder
JAMA Network Open, 5 (1), e2144955. doi: 10.1001/jamanetworkopen.2021.44955. PMCID: PMC8790663.

Guo CZ, D'Onofrio G, Fiellin DA, Edelman EJ, Hawk K, Herring A, McCormack R, Perrone J, Cowan E (2021).
Emergency department-initiated buprenorphine protocols: A national evaluation
Journal of the American College of Emergency Physicians Open, 2 (6), e12606. doi: 10.1002/emp2.12606. PMCID: PMC8630357.


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