Critical Care Medicine
![Sara K. Greer, MD](https://pediatrics.wustl.edu/app/uploads/2021/11/Sara-K.-Greer-MD.jpg)
Sara K. Greer, MD
Assistant Professor of Pediatrics, Critical Care Medicine
Assistant Medical Director, Howard and Joyce Wood Simulation Center
EXPLORE Program Education Pathway Lead
- Phone: 314-454-2527
![Kristin Guilliams, MD, MSCI](https://pediatrics.wustl.edu/app/uploads/2022/08/Kristin-Guilliams-280x386-1-280x386.jpeg)
Kristin Guilliams, MD, MSCI
Assistant Professor of Pediatrics, Critical Care Medicine
Assistant Professor of Pediatrics, Neurology
Assistant Professor of Pediatrics, Radiology
![Mary E. Hartman, MD, MPH](https://pediatrics.wustl.edu/app/uploads/2022/08/Mary-Hartman-280x386-1-280x386.jpeg)
Mary E. Hartman, MD, MPH
Associate Professor of Pediatrics, Critical Care Medicine
- Phone: 314-454-2527
![Nikoleta S. Kolovos, MD](https://pediatrics.wustl.edu/app/uploads/2021/11/KolovosN_3175_300-280x386-1-280x386.jpeg)
Nikoleta S. Kolovos, MD
Associate Professor of Pediatrics, Critical Care Medicine
- Phone: 314-454-2527
![John Lin, MD](https://pediatrics.wustl.edu/app/uploads/2022/08/John-Lin-280x386-1-280x386.jpeg)
John Lin, MD
Professor of Pediatrics, Critical Care Medicine
Program Director, Pediatric Critical Care Medicine Fellowship
Medical Director, SLCH Respiratory Care Department
- Phone: 314-454-2527
![Jay Malone, MD, MS, PhD](https://pediatrics.wustl.edu/app/uploads/2021/11/Jay-Malone-280x386-1-280x386.jpeg)
Jay Malone, MD, MS, PhD
Associate Professor of Pediatrics, Critical Care Medicine
- Phone: 314-454-2527