Sara C. Keller, MD, MPH, MSHP, is an Assistant Professor of Medicine in the Division of Infectious Disease at Johns Hopkins University School of Medicine. She is also Associate Faculty in the Armstrong Institute of Patient Safety and Quality at the Johns Hopkins University School of Medicine.

Dr. Keller's research interests focus on improving the quality of care of patients receiving parenteral antibiotics outside the hospital, measures and outcomes among patients with central venous catheters in the home, and improving ambulatory antimicrobial stewardship. She received the 2017 SHEA Epi Project Award for her project "Home-based outpatient parenteral antimicrobial therapy (OPAT): Learning about Central Venous Catheter complication prevention when patients are the providers." This project uses qualitative methods including observing patients accessing their central venous catheters in their home, and is leading to interventions to improve training of patients receiving OPAT therapy.

Dr. Keller received her undergraduate degree from the University of Maryland, her masters of public health degree in epidemiology at the University of North Carolina, her medical degree from Duke University School of Medicine, and her masters of science in health policy research degree from the University of Pennsylvania Perelman School of Medicine. She completed her postgraduate training in internal medicine at the Johns Hopkins School of Medicine. She underwent subsequent training in infectious diseases and in the Centers for Healthcare Improvement and Patient Safety at the University of Pennsylvania Perelman School of Medicine.