Sara Condron Keller, M.D., M.P.H., M.S.P.H.

Headshot of Sara Condron Keller
  • Associate Professor of Medicine


Cellulitis, Clostridium Difficile, Endocarditis, HIV/AIDS, Infectious Disease, Infectious Diseases, Osteomyelitis, Outpatient Parenteral Antimicrobial Therapy (OPAT), Quality Care, Surgical Infections, Urinary Tract Infections more

Research Interests

Quality improvement; Outpatient parenteral antimicrobial therapy; Implementation Science; Antimicrobial stewardship; Antimicrobial use across the continuum of care; Human factors engineering; Healthcare acquired infections; Home infusion therapy more

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Main Phone

Outside of Maryland & Washington D.C.

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Johns Hopkins Rockland Physician Practice and Research Group

Appointment Phone: 410-583-2900
10751 Falls Road
Falls Concourse Suite 412
Lutherville, MD 21093
Phone: 410-583-2909 | Fax: 410-583-2654
Johns Hopkins Rockland Physician Practice and Research Group - Google Maps


Dr. Sara Keller graduated from the Duke University School of Medicine in 2007. She completed her Master of Public Health in epidemiology in 2006 at the University of North Carolina at Chapel Hill. She then completed a residency in Internal Medicine in the Osler Medical Residency Training Program at the Johns Hopkins Hospital in 2010, a fellowship in Infectious Diseases at the University of Pennsylvania in 2012, and a fellowship in the University of Pennsylvania Centers for Healthcare Improvement and Patient Safety in 2013. She also completed a Master of Science in Health Policy at the University of Pennsylvania in 2013.

She is an Assistant Professor in Infectious Diseases where she primarily sees patients at Johns Hopkins Greenspring Station and also attends on the inpatient infectious disease consult service at the Johns Hopkins Hospital. She serves as the Medical Director of the Johns Hopkins Hospital Outpatient Parenteral Antimicrobial Therapy (OPAT) Service. more


  • Associate Professor of Medicine

Departments / Divisions

Centers & Institutes

  • Infectious Disease Center for Viral Hepatitis



  • MD; Duke University School of Medicine (2007)


  • Medicine; Johns Hopkins University School of Medicine (2010)


  • Infectious Diseases; University of Pennsylvania School of Medicine (2012)
  • University of Pennsylvania School of Medicine (2013)

Board Certifications

  • American Board of Internal Medicine (Infectious Disease) (2012)
  • American Board of Internal Medicine (Internal Medicine) (2010)

Research & Publications

Selected Publications

Keller SC, Williams D, Gavgani M, Hirsch D, Adamovich J, Hohl D, Gurses AP, Cosgrove SE. Rates of and risk factors for adverse drug events in outpatient parenteral antimicrobial therapy. Clin Infect Dis. 2018;66:11-19

Keller SC, Cosgrove SE, Arbaje AI, Chan RH, Krosche A, Williams D, Gurses AP. Roles and role ambiguity in patient and caregiver-performed outpatient parenteral antimicrobial therapy. Jt Comm J Qual Pt Safety. 2019;45:763-771

Keller S, Salinas A, Williams D, McGoldrick M, Gorski L, Alexander M, Norris A, Charron J, Stienecker RS, Passaretti C, Maragakis L, Cosgrove SE. Reaching consensus on a home infusion central line-associated bloodstream infection surveillance definition using stakeholder input via a modified Delphi approach. Am J Infect Control. 2020;S0196-6553:31055-7

Keller SC, Wang N, Salinas A, Williams D, Townsend J, Cosgrove SE. Which patients discharged to home-based outpatient parenteral antimicrobial therapy are at high risk of adverse outcomes? Open Forum Infect Dis. 2020;7:ofaa178

Norris AH, Shrestha NK, Allison GM, Keller SC, Bhavan KP, Zurlo JJ, Hersh AL, Gorski LA, Bosso JA, Rathore MH, Arrieta A, Petrak RM, Shah A, Brown RB, Knight SL, Umscheid CA. 2018 Infectious Diseases Society of America clinical practice guideline for the management of outpatient parenteral antimicrobial therapy. Clin Infect Dis. 2019;68:e1-e35

Activities & Honors


  • Quality and Patient Safety Award, University of Pennsylvania, 2012
  • Caring for Communities Award,  American Association of Medical Colleges, 2007
  • Institutional Comparative Effectiveness Research Mentored Career Development Award (KM1), 2011 - 2013
  •  ID Week Trainee Travel Award, 2012


  • Infectious Diseases Society of America, 2010

Professional Activities

  • Reviewer, AIDS Patient Care and STDs
  • Reviewer, Annals of Internal Medicine
  • Reviewer, AIDS and Behavior

Videos & Media

Recent News Articles and Media Coverage

Keller SC, Linkin DR, Fishman NO, Lautenbach E. Variations in identification of healthcare-associated infections. Infectious Diseases News. 2013.

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