Maire A Conrad, MD, MS
Assistant Professor of Pediatrics (Gastroenterology, Hepatology and Nutrition) at the Children's Hospital of Philadelphia
Attending Physician, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Philadelphia
Associate Medical Director of Very Early Onset Inflammatory Bowel Disease Program, The Children's Hospital of Philadelphia
Director of Fecal Microbiota Transplantation- Clinical Operations, The Children's Hospital of Philadelphia Center for Microbial Medicine
Department: Pediatrics
Contact information
Children's Hospital of Philadelphia
Division of Gastroenterology, Hepatology and Nutrition
3401 Civic Center Boulevard
Philadelphia, PA 19104
Division of Gastroenterology, Hepatology and Nutrition
3401 Civic Center Boulevard
Philadelphia, PA 19104
Office: 267-425-4770
Fax: 215-590-3606
Fax: 215-590-3606
Publications
Education:
BS (Biology)
The College of New Jersey, 2003.
MS (Human Nutrition)
Columbia University College of Physicians and Surgeons, 2004.
MD
Drexel University College of Medicine, 2010.
MS (Translational Research)
University of Pennsylvania School of Medicine, 2021.
Permanent linkBS (Biology)
The College of New Jersey, 2003.
MS (Human Nutrition)
Columbia University College of Physicians and Surgeons, 2004.
MD
Drexel University College of Medicine, 2010.
MS (Translational Research)
University of Pennsylvania School of Medicine, 2021.
Description of Clinical Expertise
pediatric inflammatory bowel disease, very early onset inflammatory bowel diseaseDescription of Research Expertise
pediatric inflammatory bowel disease, very early onset inflammatory bowel disease, translational microbiome studies, host-microbe interactions, clostridioides difficile infectionSelected Publications
Macchi M, Elgamal M, Diallo A, Benitez A, Lerebo WT, Menys A, Anupindi S, Serai S, Conrad MA. : Quantitative Small Bowel Motility Assessment on MRE in Pediatric Crohn Disease: Associations with Clinical Phenotype and Surgical Outcome. Crohn's and Colitis Congress January 2026.Yerushalmy-Feler et al. : Upadacitinib Maintenance Therapy in Pediatric Ulcerative Colitis: 52-week Multicenter Study from the Porto Group of ESPGHAN. Clinical Gastroenterology and Hepatology 2026.
Karakasheva TA, Morral Martinez C, Zhou Y, Qui J, Chen XE, Soto GE, Nettleford SK, Hix OT, Roach DM, Laguerta AM, Thadi A, Edwards RM, Aleynick D, Weinbrom S, Borodyanskaya E, Pickering OH, Fulton M, Chen CH, Peterson IV, Hagen EB, Yannuzzi IP, Haider Z, Cramer Z, Conrad M, Li N, Bewtra M, Uzun Y, Tan K, Kelsen JR, Minn AJ, Lengner CJ, Hamilton KE.: An epigenetic basis for sustained inflammatory epithelial progenitor cell states in Crohn's disease. Cell Mol Gastroenterol Hepatol. Oct 2025
Macchi M, Gaddipati S. More A, Baccarella A, Borodyanskaya Y, Cohen M, Cubrea A, Danwany N, Conrad M, Kelsen RJ: Risankizumab for the Treatment of Very Early Onset Inflammatory Bowel Disease. Poster Presentation. North American Society for Pediatric Gastroenterology, Hepatology and Nutrition Annual Meeting, Chicago, IL Nov 2025.
Doris Valenzuela-Araujo, Gonench Kilich , Kathryn Maurer , Christopher Breen, Erica Schindewolf, Kelly Hassey, Priscila Cunha, Catherine Hartman, Trusha Patel, Brooke Boyer, Maire Conrad, Kathleen Sullivan, Judith R Kelsen: A case of very early onset inflammatory bowel disease due to a novel Ripki variant. NASPGHAN Annual Meeting 2025 November 2025.
Arthur Kastl, Rosa Hwang, Lindsey Albenberg, Robert Baldassano, Maire Conrad, Peter Mattei: Perianal outcomes in children using Upadacitinib for management of Crohn’s disease. NASPGHAN Annual Meeting 2025 November 2025.
Marina Macchi, Shreya Gaddipati, Astrela Moore, Alyssa Baccarella, Yelizaveta Borodyanskaya, Maya Cohen, Andrea Cubero, Noor Dawany, Maire Conrad, Judith R Kelsen: Risankizumab for the treatment of very early onset inflammatory bowel disease. NASPGHAN Annual Meeting 2025 November 2025.
Kastl A, Hwang R, Albenberg L, Baldassano R, Conrad M, Mattei P : Perianal Outcomes in Children Using Upadacitinib for Management of Crohn's Disease. Poster presentation. North American Society for Pediatric Gastroenterology, Hepatology and Nutrition Annual Meeting, Chicago, IL Nov 2025.
Conrad MA, Crawford M, Michail S, Nicholson M, Hourigan S, Kelsen JR, Kahn SA. : Reply. J Pediatr. Oct 2025.
Conrad MA, Kaplan AL, Weinbrom S, Nastasio S, Jo D, Conover K, Lo K, Liu E, Crawford M, Michail S, Nicholson M, Hourigan SK, Kelsen JR, Kahn SA.: Fidaxomicin Treatment of Clostridioides difficile Infections and Recurrences in Children and Adolescents: A Retrospective Multicenter Study. J Pediatr. Jun 2025.