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Marc Evan Schaefer, M.D., M.P.H.

Office Information

Penn State Hershey Pediatric Gastroenterology
500 University Drive
Hershey, PA 17033
Tel: (800) 243-1455 / (717) 531-6807 Fax: (717) 531-0653


Pediatric Gastroenterology

Patient Services Provided

Inflammatory Bowel Disease

Practice Locations

Biographical Information

Dr. Schaefer received his medical degree from Sackler School of Medicine-New York State American Branch. He completed his Pediatric residency training at Maimonides Medical Center, Infants and Children's Hospital of Brooklyn and Pediatric Gastroenterology and Nutrition fellowship at Brown University Medical School/Hasbro Children's Hospital. His clinical interests include inflammatory bowel disease. Dr. Schaefer joined our faculty in 2009.

MPH, Brown University (Providence) (2009)

Professional Education

Fellowship, Pediatric Gastroenterology, Rhode Island Hospital (Providence) (2009) Residency, Pediatrics, Maimonides Medical Center (New York) (2006) M.D., Sackler School of Medicine New York State / American Program (2003)


Gupta M, Noel GJ, Schaefer M, Friedman D, Bussel J, Johann-Liang R
Cytokine Modulation with immune gamma-globulin in peripheral blood of normal children and Its implications in Kawasaki disease treatment

Journal of Clinical Immunology. 2001 May; 21(3):193-199.

Schaefer ME, Machan JT, Kawatu, D, Langton CR,, Markowitz J, Crandall W, Mack DR, Evans JS, Pfefferkorn MD, Griffiths AM, Otley AR, Bousvaros A, Kugathasan S, Rosh JR, Keljo DJ, Carvalho RS, Tomer G, Mamula P, Kay MH, Kerzner B, Oliva-Hemker M, Kappelman MD, Saeed SA, Hyams JS, LeLeiko NS
Factors that Determine Risk for Surgery in Pediatric Patients with Crohn's Disease
Clin Gastroenterol Hepatol. 2010 Sep; 8(9): 789-94.