Dr. Schaefer is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Office
500 University Dr
Hershey, PA 17033Phone+1 717-531-6807Fax+1 717-531-0653
Education & Training
- Brown UniversityFellowship, Pediatric Gastroenterology, 2006 - 2009
- Maimonides Medical Center/Infants and Children's Hospital of BrooklynResidency, Pediatrics, 2003 - 2006
- Tel Aviv University SacklerClass of 2003
Certifications & Licensure
- PA State Medical License 2009 - 2024
- RI State Medical License 2006 - 2009
- American Board of Pediatrics Pediatric Gastroenterology
Publications & Presentations
PubMed
- 43 citationsBiologics Delay Progression of Crohn’s Disease, but Not Early Surgery, in ChildrenBasavaraj Kerur, Jason T. Machan, Jason Shapiro, Carolina S. Cerezo, James Markowitz
Clinical Gastroenterology and Hepatology. 2018-09-01 - Complicated Helicobacter pylori Masquerading as an Eating DisorderMarc Schaefer, Rollyn M. Ornstein
Global Pediatric Health. 2015-01-01 - 77 citationsFactors that determine risk for surgery in pediatric patients with Crohn's disease.Marc Schaefer, Jason T. Machan, David Kawatu, Christine R. Langton, James Markowitz
Clinical Gastroenterology and Hepatology. 2010-09-01
Press Mentions
- Marijuana — Time to Think Again?June 1st, 2021
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence: