Ryan Shields
PharmD, MS

Associate Professor of Medicine

Education & Training

PharmD, Ferris State University, 2007 

Pharmacy Practice Residency (PGY1), Saint Louis University Hospital, 2008

Infectious Diseases Pharmacy Residency (PGY2), University of Pittsburgh, 2009

MS, Clinical Research, University of Pittsburgh, 2013


Ryan Shields is a pharmacist-scientist interested in antimicrobial drug resistance in gram-negative bacteria and yeast. His research focuses on the use of molecular markers of resistance to predict patient responses to treatment; the use of pharmacokinetic-pharmacodynamic models to suppress and overcome antimicrobial resistance; antimicrobial susceptibility testing methods; elucidating new mechanisms of antimicrobial drug resistance, and the clinical impact of infections due to extensively-drug resistant pathogens. Using these approaches, Dr. Shields and colleagues have developed treatment paradigms for difficult-to-treat pathogens, including Candida glabrata, Acinetobacter baumannii, and carbapenem-resistant Klebsiella pneumoniae, leading to improved patient outcomes. Dr. Shields is also the Co-Director of the Antimicrobial Management Program at UPMC Presbyterian hospital.