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David K. Warren, MD, MPH

Professor of Medicine



Additional Titles

  • Hospital Epidemiologist Barnes-Jewish Hospital
  • Director, Clinical Research Training Center
  • Program Director, Masters of Science in Clinical Investigation

Related Links


  • BS, Molecular and Cell Biology: Pennsylvania State University, University Park, PA (1990)
  • Medical Degree: University of Pittsburgh School of Medicine, Pittsburgh, PA (1994)
  • Residency, Internal Medicine: Barnes-Jewish Hospital at Washington University School of Medicine, St. Louis, MO (1997)
  • Fellowship, Infectious Diseases: Barnes-Jewish Hospital at Washington University School of Medicine, St. Louis, MO (2001)
  • MPH: St. Louis University School of Public Health, St. Louis, MO (2005)

Board Certifications

  • Internal Medicine
  • Infectious Disease

Clinical Interests

Staphylococcal infections, general infectious diseases, osteomyelitis, catheter-related infections.

Research Interests

My research interests center around the epidemiology and prevention of healthcare-associated infections. Approximately 5-8% of patients admitted to the hospital will acquire a healthcare-associated infection. These infections result in increased morbidity and mortality, prolonged hospital stays, and increased healthcare costs.

I am interested in developing methods to prevent the spread of antimicrobial-resistant bacteria among hospitalized patients. I have participated in several multicenter trials to test these interventions, such as bathing ICU patients with chlorhexidine-based products to prevent methicillin-resistant S. aureus (MRSA) infections. I have conducted several local studies testing methods to prevent common healthcare-associated infections, such as catheter-associated bloodstream infections and surgical site infections. Finally, I am involved in understanding infectious complications of surgical procedures, such as placement of implantable cardiac devices, using longitudinal administrative claims datasets.


Warren DK, Prager M, Munigala S, Wallace MA, Kennedy CR, Bommarito KM, Mazuski JE, Burnham CAD. Prevalence of qacA/B Genes and Mupirocin Resistance Among Methicillin-Resistant Staphylococcus aureus (MRSA) Isolates in the Setting of Chlorhexidine Bathing Without Mupirocin. Infect Control Hosp Epidemiol 2016 May;37(5):590-7

Jafarzadeh SR, Thomas BS, Gill J, Fraser VJ, Marschall J, Warren DK. Sepsis Surveillance from Administrative Data in the Absence of a Perfect Verification. Ann Epidemiol 2016 Aug 20. pii: S1047-2797(16)30242-3.

Liang SY, Beekmann SE, Polgreen PM, Warren DK. Current Management of Cardiac Implantable Electronic Device Infections by Infectious Disease Specialists. Clin Infect Dis 2016 Oct 15;63(8):1072-5.

Olsen MA, Nickel KB, Fraser VJ,Wallace AE, Warren DK. Prevalence and Predictors of Post-Discharge Antibiotic Use Following Mastectomy. Infect Control Hosp Epidemiol. 2017 Jul 3:1-7. doi: 10.1017/ice.2017.128.

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