Current fellows

David Witcher, MD
2025
- Email: dwitcher@wustl.edu
Residency: Washington University School of Medicine/St. Louis Children’s Hospital Medical School: Wayne State University School of Medicine Hobbies: Playing and watching sports, reading, film, chess, hiking, fishing, and golfing.
Past fellows

Marissa Cantu, MD
2016-2020
Current position: Assistant Professor at UT Health San Antonio Residency: Tulane-Ochsner Pediatric Residency Program Medical school: University of Nebraska College of Medicine Professional interests: Child Abuse Pediatrics Scholarly activity: “Physician Recommendations for Medical Care of Children Reported to Child Protective Services” Cantu completed a combined Child Abuse Pediatric Fellowship and Pediatric Emergency Medicine Fellowship in June 2020