Fellows by program
![Lauren Littell, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Lauren-Littell-Photo-280x386-1-280x386.jpg)
Lauren Littell, MD
Cardiology
Medical school:
Saint Louis University
Residency:
St. Louis Children’s Hospital
![Albert Liu, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Liu_photo-280x386-1-280x386.jpg)
Albert Liu, MD
Nephrology
Medical school: University of New Mexico School of Medicine
Residency: Medical College of Wisconsin/Children's Wisconsin
![Maria Liverpool, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Liverpool_upscale-280x386.jpg)
Maria Liverpool, MD
Emergency Medicine
Medical school: American University of Antigua College of Medicine Antigua and Barbuda
Residency: State University of New York (SUNY) Upstate, Syracuse, NY
![Nayna Maini, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Nayna-Maini-MD.jpg)
Nayna Maini, MD
Allergy/Immunology
Medical school:
St. George's University School of Medicine, Grenada
Residency:
Oishei Children’s Hospital, Buffalo, NY
University of Buffalo
![Nicole Majachani, MD](https://pediatrics.wustl.edu/app/uploads/2024/07/majachani.jpg)
Nicole Majachani, MD
Neonatal-Perinatal Medicine
Medical school: St. George’s University School of Medicine Grenada
Residency: University of Wisconsin Hospital and Clinics
![Louise Malburg, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Louise-Malburg-280x386-1-280x386.jpg)
Louise Malburg, MD
Emergency Medicine
Medical school: University of Missouri School of Medicine, Kansas City
Residency: University of Arizona
![Callie Marshall, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Callie-Marshall-MD.jpg)
Callie Marshall, MD
Neonatal-Perinatal Medicine
Medical school:
University of Texas Health Joe R. and Teresa Lozano Long School of Medicine, San Antonio, TX
Residency:
St. Louis Children's Hospital
Washington University in St. Louis, MO
![Katherine Martz, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Marcus_Katherine_PCCM-280x386-1-280x386.jpg)
Katherine Martz, MD
Critical Care Medicine
Medical school:
Johns Hopkins University School of Medicine
Residency:
Boston Children’s Hospital
![Isaac Mayefsky, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/Isaac-Mayefsky-MD.jpg)
Isaac Mayefsky, MD
Hospitalist Medicine
Medical school:
Weill Cornell Medicine, New York, NY
Residency:
St. Louis Children's Hospital
Washington University in St. Louis, MO
![William F. McComas, MD](https://pediatrics.wustl.edu/app/uploads/2022/12/William-F.-McComas-MD-280x386.jpg)
William F. McComas, MD
Hospitalist Medicine
Medical school:
University of Arkansas for Medical Sciences: Little Rock, AR
Residency:
St. Louis Children's Hospital
Washington University in St. Louis, MO