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David K. Warren, MD, MPH

Professor of Medicine



Additional Titles

  • Hospital Epidemiologist Barnes-Jewish Hospital
  • 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.


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