Lisa Maragakis
Advanced in Methicillin-Resistant Staphylococcus Aureus (MRSA)

Dr. Lisa Maragakis

Infectious Disease
Johns Hopkins Medicine
The Johns Hopkins Hospital
1800 Orleans Street, 
Baltimore, MD 

Advanced in Methicillin-Resistant Staphylococcus Aureus (MRSA)
Johns Hopkins Medicine
The Johns Hopkins Hospital
1800 Orleans Street, 
Baltimore, MD 
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Overview

Lisa Maragakis, M.D., M.P.H., FSHEA, FIDSA is a professor of medicine and epidemiology at Johns Hopkins University School of Medicine and the Johns Hopkins Bloomberg School of Public Health. Dr. Maragakis is the Senior Director of Infection Prevention, for The Johns Hopkins Health System and the Hospital Epidemiologist for The Johns Hopkins Hospital. In these roles, she is responsible for the conceptualization, planning, implementation, and development of the Johns Hopkins Health System's infection control and prevention program. Her research interests are the epidemiology, prevention and control of healthcare-acquired infections and antimicrobial-resistant gram-negative bacilli. Dr. Maragakis serves as the Executive Director of the Johns Hopkins Hospital Biocontainment Unit and as Incident Commander for the Johns Hopkins Medicine COVID-19 response. She also serves as the IDSA Co-Chair for the 2022 Update of the Compendium of Strategies to Prevent Healthcare-Associated Infections, and as Co-Chair of the Centers for Disease Control and Prevention's Healthcare Infection Control Practices Advisory Committee (HICPAC).

Dr. Maragakis is rated as an Advanced provider by MediFind in the treatment of Methicillin-Resistant Staphylococcus Aureus (MRSA). Her top areas of expertise are Methicillin-Resistant Staphylococcus Aureus (MRSA), Ebola Virus Disease, Severe Acute Respiratory Syndrome (SARS), Viral Hemorrhagic Fever, and Bone Marrow Aspiration.

Her clinical research consists of co-authoring 107 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, she has co-authored 9 articles in the study of Methicillin-Resistant Staphylococcus Aureus (MRSA).

Graduate Institution
Johns Hopkins Bloomberg School Of Public Health, MPH, 2007
Residency
Johns Hopkins University School of Medicine, Medicine, 2001
Specialties
Infectious Disease
Licenses
Internal Medicine in MD
Board Certifications
American Board Of Internal Medicine
Fellowships
Johns Hopkins University School of Medicine, Infectious Diseases, 2004
Hospital Affiliations
The Johns Hopkins Hospital
Languages Spoken
English
Gender
Female

Insurance

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Accepted insurance plans:

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Locations

The Johns Hopkins Hospital
1800 Orleans Street, Baltimore, MD 21287
Call: 410-955-5000

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


107 Total Publications

Termination of a Federal Infection Prevention Advisory Committee: Eroding Health Care Safety.
Termination of a Federal Infection Prevention Advisory Committee: Eroding Health Care Safety.
Journal: JAMA
Published: June 16, 2025
View All 107 Publications
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The Johns Hopkins Hospital

1800 Orleans Street, 
Baltimore, MD 
 (0.1 miles away)
410-955-5000
Languages Spoken:
English
See accepted insurances

Dr. Cosgrove is a Professor of Medicine in the Division of Infectious Disease (ID) at Johns Hopkins University School of Medicine and has a joint appointment in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. She is the Director of Research for the ID Fellowship Program and PI of the T32 training grant that supports ID fellow training. She serves as the Director of the Department of Antimicrobial Stewardship and an Associate Hospital Epidemiologist at The Johns Hopkins Hospital. Dr. Cosgrove’s research interests include the epidemiology and outcomes of antimicrobial resistance, the development of tools and programs to promote the rational use of antimicrobials, the prevention of hospital-acquired infections, and the epidemiology and management of S. aureus bacteremia. Early in her career, she recognized the critical need to study antimicrobial stewardship strategies and has led a series of outcomes studies over the past 20 years that have defined the practice of antimicrobial stewardship in the United States. Her recent research focuses on strategies for implementation of antimicrobial stewardship activities across all healthcare settings via a large, multi-center project including hospitals, long-term care facilities and ambulatory practices funded by the Agency for Healthcare Research and Quality, and approaches to improve how antibiotics are given via a randomized trial to compare intravenous and oral therapy for Gram negative bacteremia funded by PCORI. She is the PI of the Johns Hopkins Prevention Epicenter, a Centers for Disease Control and Prevention-funded program that integrates antimicrobial stewardship, healthcare epidemiology, human factors engineering, data science, and implementation science to address knowledge gaps and develop strategies to optimize patient safety by preventing transmission of pathogens and improving antibiotic use in diverse healthcare settings and patient populations. She is a past voting member of the Presidential Advisory Council on Combating Antibiotic-Resistant Bacteria. She is a Past President of the Society for Healthcare Epidemiology’s Board of Directors. Dr. Cosgrove received her undergraduate degree from Columbia College, her medical degree from Baylor College of Medicine, and her master of science degree in epidemiology from Harvard School of Public Health. She completed her postgraduate training in internal medicine at The Johns Hopkins Hospital and underwent subsequent training in ID at Beth Israel Deaconess Medical Center. Dr. Cosgrove is rated as an Advanced provider by MediFind in the treatment of Methicillin-Resistant Staphylococcus Aureus (MRSA). Her top areas of expertise are Sepsis, Methicillin-Resistant Staphylococcus Aureus (MRSA), Pneumonia, and Pseudomonas Stutzeri Infections.

VIEW MORE METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS (MRSA) DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

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      • Advanced
      • Ebola Virus Disease
        Dr. Maragakis is
        Advanced
        . Learn about Ebola Virus Disease.
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      • Methicillin-Resistant Staphylococcus Aureus (MRSA)
        Dr. Maragakis is
        Advanced
        . Learn about Methicillin-Resistant Staphylococcus Aureus (MRSA).
        See more Methicillin-Resistant Staphylococcus Aureus (MRSA) experts
      • Experienced
      • Bone Marrow Aspiration
        Dr. Maragakis is
        Experienced
        . Learn about Bone Marrow Aspiration.
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      • COVID-19
        Dr. Maragakis is
        Experienced
        . Learn about COVID-19.
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      • Hospital-Acquired Pneumonia
        Dr. Maragakis is
        Experienced
        . Learn about Hospital-Acquired Pneumonia.
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      • Pneumonia
        Dr. Maragakis is
        Experienced
        . Learn about Pneumonia.
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      • Sepsis
        Dr. Maragakis is
        Experienced
        . Learn about Sepsis.
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      • Severe Acute Respiratory Syndrome (SARS)
        Dr. Maragakis is
        Experienced
        . Learn about Severe Acute Respiratory Syndrome (SARS).
        See more Severe Acute Respiratory Syndrome (SARS) experts
      View All 7 Experienced Conditions
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