Division of Infectious Diseases

Antibiotic/Antimicrobial Stewardship Program

Our Mission 

  • To promote responsible and rational antimicrobial use by providers and patients alike
  • To increase public health awareness about the threat of antimicrobial resistance
  • To educate and empower clinical champions of antimicrobial stewardship 
  • To mentor stewardship leaders of tomorrow

What We Do 

As much as 50 percent of all antibiotic prescriptions are considered “inappropriate.” Experts consider antibiotics to be “inappropriate” when they are prescribed for non-bacterial infections, the spectrum of coverage is overly broad and potentially toxic, the dose is inaccurate for the host, or the intended duration is too long. “Inappropriateness” contributes directly to medication side effects, interactions, kidney and liver dysfunction, Clostridium difficile infections (CDI), and the emergence of multi-drug resistant pathogens. As early as 1945, Sir Alexander Fleming, the pioneer of the antibiotic era, warned that the overuse of antibiotics “clearly drives the evolution of resistance.”

In 2014 President Obama introduced multi-drug resistance as a national security issue and recognized antimicrobial stewardship as the first line of defense. In 2016, the Centers for Medicare and Medicaid Services and the Joint Commission joined the narrative by emphasizing the need for stewardship across the healthcare continuum (inpatient and ambulatory sites). Mainstream recognition of the scope of antibiotic resistance allows us to implement meaningful solutions. CDC’s “Core Elements of Hospital Antibiotic Stewardship Programs” provide a framework for successful ASP development. These include:

  • Leadership commitment
  • Accountability 
  • Drug Expertise
  • Action
  • Tracking
  • Reporting 
  • Education

In July 2008, Montefiore Medical Center initiated a multifaceted interdisciplinary stewardship program to educate, support, and advise practicing physicians throughout its extensive Bronx network of hospitals, ambulatory care clinics, and nursing homes. Stewardship operations occur at each of our academic campuses (Moses, Einstein, and Wakefield) and the Children's Hospital at Montefiore (CHAM). Our strategic stewardship plan is adapted from the Infectious Diseases Society of America (IDSA) guidelines and upholds the CDC’s core stewardship elements to the highest degree. Together with institutional liaisons and stewardship champions, we provide aggregate data on antimicrobial resistance and microbiology, and promote antimicrobial prescribing best practices. Montefiore/Einstein Stewardship members have published in the areas of rapid diagnostic technology and stewardship, quality improvement initiatives to improve community acquired pneumonia management, stewardship and Clostridium difficile infection, stewardship and HIV, stewardship in outpatient parenteral antibiotic therapy, carbapenem-resistant Klebsiella and other enterobacteriaceae, medical education in stewardship and infection prevention, and stewardship in special populations.

Montefiore/Einstein Stewardship Team

Priya Nori, MD, Medical Director of ASP and OPAT

Belinda Ostrowsky, MD, Founding Member

Yi Guo, PharmD, Pharmacy Director of Antimicrobial Stewardship Program

KelsieKelsie Cowman, MPH, Stewardship Program Analyst

VijuVijaya Soma, MD; Director of ASP at CHAM

bartash Rachel Bartash, MD; ASP in Special Populations

 Victor IDVictor Chen, PharmD; ID/ASP Weiler Campus

 Philip IDPhilip J. Lee, PharmD; ID/ASP CHAM Campus

 Gregory IDGregory D. Weston, PharmD; ID/ASP CCM-ID, IPC


Toolkits, Publications, Abstracts, and Online Modules


Big Bugs, Few Drugs: Infectious Disease and Antimicrobial Stewardship  

AHRQ toolkit helps hospitals improve antibiotic selection to reduce deadly C. difficile infections (AHRQ)

Antimicrobial Stewardship Toolkit: Best Practices from the GNYHA/UHF Antimicrobial Stewardship Collective 


Bundle in the Bronx: Impact of a Transition-of-Care Outpatient Parenteral Antibiotic Therapy Bundle on All-Cause 30-Day Hospital Readmissions  

Antimicrobial Stewardship and Automated Pharmacy Technology Improve Antibiotic Appropriateness for Community-Acquired Pneumonia (ICHE)

Developing Interactive Antimicrobial Stewardship and Infection Prevention Curricula for Diverse Learners: A Tailored Approach. 

Customized Order-Entry Sets Can Prevent Antiretroviral Prescribing Errors: A Novel Opportunity For Antimicrobial Stewardship. 

Beta-lactam combination therapy for the treatment of Staphylococcus aureus and Enterococcus species bacteremia: A summary and appraisal of the evidence. 

Ceftazidime–avibactam Susceptibility Patterns in Carbapenem-Resistant Enterobacteriaceae in the USA: Results from the Consortium on Resistance against Carbapenems in Klebsiella and Other Enterobacteriaceae (CRACKLE-2) 

How to adapt the CDC's Core Elements of Antimicrobial Stewardship to your patients, pathogens, prescribers and personnel – Healio article

Working Together to Define Antibiotic Appropriateness: Point Prevalence Survey in 47 Intensive Care Units from 12 US Hospitals, Partnership for Quality Care, March 2017 

Hospital Emergency Response to Novel Influenza a (H1N1) Pandemic in a Large New York City Hospital: An Opportunity for Antimicrobial Stewardship 

Antimicrobial Stewardship Training for Infectious Diseases Fellows: Program Directors Identify a Curriculum NeedClinical Infectious Diseases 

Infectious Diseases Physicians: Leading the Way in Antimicrobial StewardshipClinical Infectious Diseases 

Creative Collaborations in Antimicrobial Stewardship: Using the CDC’s Core Elements as Your Guide, Medical Clinics of North America 

Online Modules

SHEA/CDC outbreak response Training Program  

External Resources and Partners 

Our Partners and Champions

ID Division:
 Liise-anne Pirofski, MD, Chief, Division of Infectious Diseases; Professor, Departments of Medicine (ID) and Microbiology & Immunology
Essay: Life as an Infectious Diseases Physician Scientist: Science is Humanity’s Lifeline
Publications (PubMed)
Video: Einstein On: Antibotic ResistanceAntibiotic Stewardship: Changing the Culture 

Microbiology Laboratory: A Faster Approach to Identifying Bacteria 


Wendy A. Szymczak, PhD; Supervisor, Microbiology Laboratory; Assistant Professor, Department of Pathology

Michael Levi, ScD, Director, Microbiology Laboratory; Associate Professor, Department of Pathology 

Philip Gialanella, B.S., M.S., Microbiology Laboratory Manager; Associate, Department of Pathology

Infection Prevention and Control  

Theresa Madaline, MD,Assistant Professor, Department of Medicine (Infectious Diseases)

Gregory Weston, MD, Infection Control, Moses Campus

Sun Park, MD, Infection Control, Weiler Campus

Infectious Diseases Fellowship Program 


Belinda Ostrowsky, MD - 2016 Montefiore President's Award 

Priya Nori, MD - Rising Star 

Yi Guo, PharmD, President of New York City Society of Health-system Pharmacists 


ASP News

Antimicrobial Stewardship Program Designated as Center of Excellence by IDSA
The Antimicrobial Stewardship Program (ASP) at Montefiore, led by medical director Priya Nori, MD, has been designated as a Center for Excellence by The Infectious Diseases Society of America (IDSA). It is among 25 academic sites in the nation – and one of few in New York City, to receive this prestigious recognition, which was announced on August 15, 2018.


 COE logo 


Conferences & Seminars

No Grand Rounds this summer

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