No photo available.

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).

Dr. Schaefer is the Associate Director, Pediatric IBD, Penn State IBD Center.

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)


Penn State Profile
Marc Evan Schaefer, M.D., M.P.H.
Click here to view my publication history.
Oliva-Hemker M, Hutfless S, Al Kazzi ES, Lerer T, Mack D, LeLeiko N, Griffiths A, Cabrera J, Otley A, Rick J, Bousvaros A, Rosh J, Grossman A, Saeed S, Kay M, Carvalho R, Keljo D, Pfefferkorn M, Faubion W, Kappelman M, Sudel B, Schaefer ME, Markowitz J, Hyams JS.
Clinical Presentation and Five-Year Therapeutic Management of Very Early-Onset Inflammatory Bowel Disease in a Large North American Cohort. Sep 2015
J Pediatr.
Goyal A, Hyams JS, Lerer T, Leleiko NS, Otley AR, Griffiths AM, Rosh JR, Cabrera JM, Oliva-Hemker MM, Mack DR, Rick JN, Pfefferkorn MD, Carvalho R, Grossman AB, Hitch MC, Sudel B, Kappelman MD, Saeed SA, Faubion WA, Schaefer ME, Markowitz JF, Keljo DJ.
Liver enzyme elevations within 3 months of diagnosis of inflammatory bowel disease and likelihood of liver disease. Sep 2014
J Pediatr Gastroenterol Nutr.
Schaefer ME, Ornstein RM.
Complicated Helicobacter pylori Masquerading as an Eating Disorder. May 2014
Glob Pediatr Health.