Faculty by division
![David A. Hunstad, MD](https://pediatrics.wustl.edu/app/uploads/2022/08/Hunstad-David-280x386.jpeg)
David A. Hunstad, MD
Professor of Pediatrics, Infectious Diseases
Division Director, Infectious Diseases
Professor, Molecular Microbiology
Vice Chair of Basic and Translational Research, Pediatrics
Scientific Director, Children’s Discovery Institute
Arnold W. Strauss, MD Endowed Professor for Mentoring
- Phone: (314) 454-6050
![Andrew B. Janowski, MD, MSCI](https://pediatrics.wustl.edu/app/uploads/2022/08/Janowski-Andrew-280x386.jpeg)
Andrew B. Janowski, MD, MSCI
Assistant Professor of Pediatrics, Infectious Diseases
- Phone: 314-454-6050
![Shannon Joerger, MD](https://pediatrics.wustl.edu/app/uploads/2022/08/Shannon-Joerger-280x386-1-280x386.jpeg)
Shannon Joerger, MD
Assistant Professor of Pediatrics, Gastroenterology, Hepatology & Nutrition
- Phone: 314-454-6173
![Mark C. Johnson, MD](https://pediatrics.wustl.edu/app/uploads/2022/08/Mark-Johnson-280x386-1-280x386.jpeg)
Mark C. Johnson, MD
Professor of Pediatrics, Cardiology
Associate Director, Cardiology Fellowship Program
- Phone: 314-454-6095
![Katherine McMullin Jones, MD](https://pediatrics.wustl.edu/app/uploads/2022/08/Katherine-Jones-280x386-1-280x386.jpeg)
Katherine McMullin Jones, MD
Associate Professor of Pediatrics, Hospitalist Medicine
- Phone: 314-454-2076
![Samuel F. Julian, MD](https://pediatrics.wustl.edu/app/uploads/2022/08/Samuel-Julian-800x1100-1-280x386.jpeg)
Samuel F. Julian, MD
Associate Professor of Pediatrics, Newborn Medicine
Co-Director, Neonatal Perinatal Medicine Fellowship Program
- Phone: 314-454-2683