Andrew B. Grossman, MD

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Andrew B. Grossman, MD, is a pediatric gastroenterologist in the Division of Gastroenterology, Hepatology and Nutrition at Children's Hospital of Philadelphia. He is the co-director of CHOP's Center for Pediatric Inflammatory Bowel Disease and holds the Robert N. Baldassano, MD, Endowed Chair in Pediatric Gastroenterology.

Areas of Expertise: Pediatric inflammatory bowel disease, Crohn's disease, Ulcerative colitis, General diagnostic gastroenterology, Quality improvement
Locations: Main Hospital; Specialty Care & Surgery Center, Voorhees; Buerger Center for Advanced Pediatric Care

Book appointment 215-590-7423

Education and Training

Medical School

MD - Rutgers Robert Wood Johnson Medical School, Piscataway, NJ

Internship

Pediatrics - Children's Hospital of New York Presbyterian (Columbia University Medical Center), New York, NY

Residency

Pediatrics - Children's Hospital of New York Presbyterian (Columbia University Medical Center), New York, NY

Fellowship

Pediatric Gastroenterology, Hepatology and Nutrition - The Children's Hospital of Philadelphia, Philadelphia, PA

Board Certification

Pediatric Gastroenterology – American Board of Pediatrics

Undergraduate Degree

BA - Duke University, Durham, NC

Titles and Academic Titles

Attending Physician

Section Chief, Clinical Gastroenterology

Robert N. Baldassano, MD, Endowed Chair in Pediatric Gastroenterology

Co-Director, Center for Pediatric Inflammatory Bowel Disease

Professor of Clinical Pediatrics (Gastroenterology, Hepatology and Nutrition), Perelman School of Medicine at the University of Pennsylvania

Conditions Treated

Departments and Services

Research Interests

Inflammatory bowel disease

Publications

Papers

2024

Coe A, Grossman A, Nace G, Pogoriler J, Mamula P: Small bowel diaphragm disease. Journal of Pediatric Gastroenterology and Nutrition February 2024 Notes: online ahead of publication.

Coe A, Grossman A, Nace G, Pogoriler J, Mamula P: Small bowel diaphragm disease. Journal of Pediatric Gastroenterology and Nutrition February 2024.

2023

Ledder O, Woynarowski M, Kamińska D, Łazowska-Przeorek I, Pieczarkowski S, Romano C, Lev-Tzion R, Holon M, Nita A, Rybak A, Jarocka-Cyrta E, Korczowski B, Czkwianianc E, Hojsak I, Szaflarska-Popławska A, Hauser B, Scheers I, Sharma S, Oliva S, Furlano R, Tzivinikos C, Liu QY, Giefer M, Mamula P, Grossman A, Kelsen J,

Edelstein B, Antoine M, Thomson M, Homan M.: Identification of Iatrogenic Perforation in Pediatric Gastrointestinal Endoscopy. Journal Pediatric Gastroenterology and Nutrition  77(3): 401-406, September 2023.Bilgic Dagci AC, Chang JC, Xiao R, Grossman AB, Weiss PF: Opioid use in children with inflammatory bowel disease-related arthritis. Clinical and Experimental Rheumatology 2023 Notes: epub ahead of print.

2021

Buckley L, Xiao R, Perman MJ, Grossman AB, Weiss PF: Psoriasis Associated with Anti-Tumor Necrosis Factor-Alpha Therapies in Children with Inflammatory Bowel Disease, Juvenile Idiopathic Arthritis, or Chronic Noninfectious Osteomyelitis  Arthritis Care & Research 75(2): 215-220, February 2021.

Breton J, Witmer CM, Zhang Y, Downing M, Stevenson J, McDermott J, Siddique SM, Grossman AB: Utilization of an Electronic Medical Record-integrated Dashboard Improves Identification and Treatment of Anemia and Iron Deficiency in Pediatric Inflammatory Bowel Disease. Inflammatory Bowel Diseases 27(9): 1409-1417, August 2021.

2020

Forrest CB, Forrest KD, Clegg JL, de la Motte A, Amaral S, Grossman AB, Furth S: Establishing the content validity of PROMIS Pediatric pain interference, fatigue, sleep disturbance, and sleep-related impairment measures in children with chronic kidney disease and Crohn's disease. Journal of Patient-Reported Outcomes 12(4): 11, February 2020.

2019

Buckley L, Xiao R, Perman MJ, Grossman AB, Weiss PF: Psoriasis Associated with Anti-Tumor Necrosis Factor-Alpha Therapies in Children with Inflammatory Bowel Disease, Juvenile Idiopathic Arthritis, or Chronic Noninfectious Osteomyelitis  Arthritis Care Res (Hoboken). 2019 Oct 23. doi: 10.1002/acr.24100. [Epub ahead of print]

Breton J, Kastl A, Hoffmann N, Rogers R, Grossman AB, Mamula P, Kelsen JR, Baldassano RN, Albenberg L.: Efficacy of Combination Antibiotic Therapy for Refractory Pediatric Inflammatory Bowel Disease. Inflammatory Bowel Disease 25(9): 1586-1593, August 2019 Notes: epub ahead of print.

Kennedy K, Muir AB, Grossman AB, Brown-Whitehorn T, Cianferoni A, Spergel J, Furuta G, Wilkins BJ, Shuker M, Ruffner MA: Modified oral enteric-coated budesonide regimens to treat pediatric eosinophilic gastroenteritis; a single center experience. The Journal of Allergy and Clinical Immunology: In Practice 7(6): 2059-2061, July 2019 Notes: epub ahead of press.

Picoraro J, Lee D, Heller CA, Weaver A, Hyams JS, Conklin LS, Otley A, Ziring D, Kugathasan S, Rosh JR, Mulberg A, Denson LA, Kappelman MD, Grossman AB, Bousvaros A, Park KT: Pediatric Inflammatory Bowel Disease Clinical Innovations Meeting of the Crohn's & Colitis Foundation: Charting the Future of Pediatric IBD. Inflammatory Bowel Diseases 25(1): 27-32, January 2019.

2018

Kerur B, Machan JT, Shapiro JM, Cerezo CS, Markowitz J, Mack DR, Griffiths AM, Otley AR, Pfefferkorn MD, Rosh JR, Keljo DJ, Boyle B, Oliva-Hemker M, Kay MH, Saeed SA, Grossman AB, Sudel B, Kappelman MD, Schaefer M, Tomer G, Bousvaros A, Lerer T, Hyams JS, LeLeiko NS.: Biologics Delay Progression of Crohn's Disease, but Not Early Surgery, in Children. Clinical Gastroenterology and Hepatology  16(9): 1467-1473, September 2018.

2017

El-Matary W, Dykes DMH, Bauman L, Elkadri A, Carroll MW, Izaguirre MR, deBruyn J, Samson CM, Crim AM, Ali S, Grossman AB: Rapid Infliximab Infusion in Children with Inflammatory Bowel Disease: A Multicenter North American Experience. Inflammatory Bowel Disease 23(12): 2104-2108, December 2017.

Picoraro J, Winberry G, Siegel CA, El-Matary W, Moses J, Grossman AB, Park KT.: Premedication Use Before Infliximab Administration: A Cross-sectional Analysis. Inflammatory Bowel Disease 23(1): 174-180, January 2017.

2016

Basaiga M, Burrows E, Denburg M, Meyers K, Grossman AB, Mamula P, Grundmeier R, Burnham J: Variation in Preventative Care in Children Receiving Chronic Glucocorticoid  Therapy. Journal of Pediatrics 2016 Notes: accepted for publication.

Conrad MA, Stein RE, Maxwell EC, Albenberg L, Baldassano RN, Dawany N, Grossman AB, Mamula P, Piccoli DA, Kelsen JR: Vedolizumab Therapy in Severe Pediatric Inflammatory Bowel Disease. Inflammatory Bowel Disease 22(10): 2425-31, October 2016.

2015

Turner D, Doveh E, Cohen A, Wilson ML, Grossman AB, Rosh JR, Lu Y, Bousvaros A, Deslandres C, Noble A, Baldassano RN, Levine A, Lerner A, Wilson DC, Griffiths AM: Efficacy of oral methotrexate in paediatric Crohn's disease: a multicentre propensity score study. Gut 64(12): 1898-1904, December 2015.

Grossi V, Lerer T,Griffiths A, LeLeiko N, Cabrera J, Otley A,Rick J, Mack D, Bousvaros A, Rosh J, Grossman AB, Saeed S, Kay M, Boyle B, Oliva-Hemker M, Keljo D, Pfefferkorn M, Faubion W, Kappelman MD, Sudel B, Markowitz J, Hyams JS: Concomitant Use of Immunomodulators Affects the Durability of Infliximab Therapy in Children with Crohn's Disease. Clinical Gastroenterology and Hepatology 13(10): 1748-1756, October 2015 Notes: doi:10.1016/j.cgh.2015.04.010.

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 AB, Saeed S, Kay M, Carvalho R, Keljo D, Pfefferkorn M, Faubion W Jr, 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. Journal of Pediatrics 167(3): 527-532, September 2015.

Hamdy RF, Stein RE, Larru B, Bellah RD, Grossman AB, Hodinka RL, Feemster KA: Gallbladder Wall Thickening in an Adolescent with Acute Mononucleosis: A Case Report and Brief Review of the Literature. Journal of the Pediatric Infectious Diseases Society 4(3): 267-271, September 2015.

2013

Zeisler B, Lerer T, Markowitz J, Mack D, Griffiths A, Bousvaros A, Keljo D, Rosh J, Evans J, Kappelman M, Otley A, Kay M, Grossman A, Saeed S, Carvalho R, Oliva-Hemker M, Faubion W, Sudel B, Pfefferkorn M, Ashai-Khan F, LeLeiko N, Hyams J and the Pediatric Inflammatory Bowel Disease Collaborative Research Group: Outcome Following Aminosalicylate Therapy in Children Newly Diagnosed with Ulcerative Colitis: A Prospective Multi-Center Registry Experience. Journal of Pediatric Gastroenterology and Nutrition 56(1): 12-18, January 2013.

Gupta K, Noble A, Kachelries K, Albenberg L, Kelsen JR, Grossman AB, Baldassano RN: A Novel Enteral Nutrition Protocol for the Treatment of Pediatric Crohn's Disease. Inflammatory Bowel Diseases 19(7): 1374-1378, June 2013.

2012

Crandall WV, Margolis PA, Kappelman MD, King EC, Pratt JM, Boyle BM, Duffy LF, Grunow JE, Kim SC, Leibowitz I, Schoen BT, Colletti RB; ImproveCareNow Collaborative. Collaborators (38) Berman J, Fuchs G, Mehta D, Bornstein J, Schoen BT, Higuchi L, Tsou M, Grossman A, Baldassano R, San Pablo W, Samson C, Denson T, Elawad M, Leibowitz I, Duffy L, Piñeiro V, Integlia M, Russell G, Israel E, Tung J, Crandall W, Boyle B, del Rosario F, Milov D, Fridge J, Ali S, Grunow J, Baron H, Mehta S, Ferry G, Neigut D, Hoffenberg E, Adler J, Sudel B, Kappelman M, Kim S, Patel A, Colletti R.: Improved outcomes in a quality improvement collaborative for pediatric inflammatory bowel disease. Pediatrics 129(4): e1030-41, April 2012.

Otley A, LeLeiko N, Langton C, Lerer T, Mack D, Evans J, Pfefferkorn M, Carvalho R, Rosh J, Griffiths A, Oliva-Hemker M, Kay M, Bousvaros A, Stephens M, Samson C, Grossman AB, Keljo D, Markowitz J, Hyams J; Pediatric IBD Collaborative Research Group.: Budesonide use in pediatric Crohn disease. J Pediatr Gastroenterol Nutr 55(2): 200-204, August 2012.

2011

Kappelman M Grossman AB, Samson C, Sudel B, Oliva-Hemker M, LeLeiko N, et al. Outcome following thiopurine use in children with ulcerative colitis: a prospective multicenter registry study. Am J Gastroenterol. 2011 May;106(5):981-7. Epub 2011 Jan 11. Cited in PubMed; PMID 21224840.

2010

Hyams JS, Lerer T, Griffiths A, Pfefferkorn M, Stephens M, Evans J, et al. Outcome following infliximab therapy in children with ulcerative colitis. Am J Gastroenterol. 2010 Jun;105(6):1430-6. Epub 2010 Jan 26. Cited in PubMed; PMID 20104217.

Books

Mamula P, Kelsen JR, Grossman AB, Baldassano RN, Markowitz JE: Pediatric Inflammatory Bowel Disease, 4th edition. Pediatric Inflammatory Bowel Disease, 4th edition 2023.

Mamula P, Grossman AB, Baldassano RN, Kelsen JR, Markowitz JE: Pediatric Inflammatory Bowel Disease. Pediatric Inflammatory Bowel Disease, 3rd Edition. Springer International Publishing, 2017.

Chapters

2023

Maxwell EC, Mattei P, Grossman AB: Management of Intraabdominal Complications of Inflammatory Bowel Disease. Pediatric Inflammatory Bowel disease, 4th edition. Springer, Page: 557-566, 2023.

2017

Maxwell EM, Mattei P, Grossman AB: Management of Intra-abdominal Complications of Inflammatory Bowel Disease. Pediatric Inflammatory Bowel Disease, 3rd Edition. Mamula P, Grossman AB, Baldassano RN, Kelsen JR, Markowitz JE (eds.). Springer International Publishing, Page: 497-506, 2017.

2015

Grossman AB, Baldassano RN: Eosinophilic Gastroenteritis. Nelson Textbook of Pediatrics, 2 Volume Set, 20th Edition. Kliegman RM, Stanton B, St. Geme J, Schor NF (eds.). Elsevier, Inc, Philadelphia, PA, 2(Part XVIII, Sec 4, Chapter 336), May 2015.

Grossman AB, Baldassano RN: Inflammatory Bowel Disease. Nelson Textbook of Pediatrics, 2 Volume Set, 20th Edition. Kliegman RM, Stanton B, St. Geme J, Schor NF (eds.). Elsevier, Inc, Philadelphia, PA, 2(Part XVIII, Sec 4, Chapter 336), May 2015.

2014

Grossman AB: Bezoars. The 5-Minute Pediatric Consult, 7th edition. Cabana MD, Brakeman P, Curran M, Dimeglio LA, Golden WC, Goldsby R, Hartman A, Kind T, Lightdale JL, Sabella C, and Tanel R (eds.). Lippincott Williams and Wilkins, 2014 Notes: in press.

2013

Grossman AB: Chronic Diarrhea. Schwartz's Clinical Handbook of Pediatrics, 5th Ed. Zorc JJ, Alpern ER, Brown LW, Loomes KM, Marino BS, Mollen CJ, Raffini LJ, Eds (eds.). Philadelphia: Lippincott Williams and Wilkins, Page: 301-310, 2013.

2011

Grossman AB, Baldassano RN: Inflammatory Bowel Disease. Nelson Textbook of Pediatrics, 19th edition. Kliegman RM, Behrman RE, St Jeme JW (eds.). Page: 1294-1295, 2011.

Grossman AB, Baldassano RN: Crohn's Disease. Nelson Textbook of Pediatrics, 19th edition. Kliegman RM, Behrman RE, St Jeme JW (eds.). Page: 1300-1304, 2011.

Grossman AB, Baldassano RN: Eosinophilic Gastroenteritis. Nelson Textbook of Pediatrics, 19th edition. Kliegman RM, Behrman RE, Stanton BF (eds.). Page: 1304, 2011.

Grossman AB, Baldassano RN: Ulcerative Colitis. Nelson Textbook of Pediatrics, 19th edition. Kliegman RM, Behrman RE, Stanton BF (eds.). Page: 1295-1300, 2011.

2010

Grossman AB, Liacouras CA. Gastroenterology. In: Polin RA, Ditmar MF, editors. Pediatric secrets. 5th ed. Philadelphia: Mosby Elsevier; 2010. p. 229-284.

Grossman AB, Baldassano RN. Inflammatory bowel disease. In: Kliegman RM, Behrman RE, Stanton BF, St. Geme J, Schor N, editors. Nelson textbook of pediatrics. 19th ed. Philadelphia: Saunders; 2010.

Grossman AB, Baldassano RN. Crohn’s disease. In: Kliegman RM, Behrman RE, Stanton BF, St. Geme J, Schor N, editors. Nelson textbook of pediatrics. 19th ed. Philadelphia: Saunders; 2010.

Grossman AB, Baldassano RN. Ulcerative colitis. In: Kliegman RM, Behrman RE, Stanton BF, St. Geme J, Schor N, editors. Nelson textbook of pediatrics. 19th ed. Philadelphia: Saunders; 2010.

Grossman AB, Baldassano RN. Eosinophilic gastroenteritis. In: Kliegman RM, Behrman RE, Stanton BF, St. Geme J, Schor N, editors. Nelson textbook of pediatrics. 19th ed. Philadelphia: Saunders; 2010.

2009

Grossman AB. Chronic diarrhea. In: Zorc J, editor. Clinical handbook of pediatrics. 4th ed. Philadelphia: Lippincott Williams and Wilkins; 2009. p. 326-337.

Grossman AB, Mamula P. Crohn disease. In: Shah SS, Frank G, editors. Patient encounters: the inpatient pediatrics work-up. Philadelphia: Lippincott, Williams, and Wilkins; 2009. p. 176-186.

2008

Grossman AB. Intussusception. In: Schwartz MW, editor. The 5-minute pediatric consult. Philadelphia: Lippincott Williams and Wilkins; 2008. p. 464-465.

Grossman AB, Bezoars. In: Schwartz MW, editor. The 5-minute pediatric consult. Philadelphia: Lippincott Williams and Wilkins; 2008. p. 102-103.

2007

Grossman AB, Liacouras CA. Gastroesophageal reflux. In: Liacouras CA and Piccoli DA, editors. Pediatric gastroenterology: the requisites in pediatrics. Philadelphia: Elsevier-Mosley; 2007. p. 74-86.

Posters and Presentations

Invited Lectures

2023

Grossman AB. "Research Plenary: COMBINE Results: What Does It Mean for Practice?," ImproveCareNow Fall 2023 Community Conference, Louisville, KY. Oct 2023.

Grossman AB. "Positioning Treatment in Pediatric IBD," NASPGHAN Post-Graduate Course, San Diego, CA. Oct 2023.

2022

Grossman AB. "Pediatric Crohn's Perianal Disease," Advances in Inflammatory Bowel Diseases, Orlando, FL. Dec 2022.

Grossman AB. "Pediatric and VEO Inflammatory Bowel Disease," Virtua Hospital CHOP Talks Series, Voorhees, NJ. Dec 2022.

Grossman AB. Bryn Mawr Hospital Pediatric Case Reviews, Bryn Mawr Hospital, Bryn Mawr, PA (virtual). May 2022.

2021

Grossman AB. "Multidisciplinary Care Over Two Decades: Top 5 Advances in Pediatrics," Advances in Inflammatory Bowel Diseases, Orlando, FL. Dec 2021.

Grossman AB. "Approaches to the Patient with Mild Crohn's Disease," Advances in Inflammatory Bowel Diseases, Orlando, FL. Dec 2021.

Awards and Honors

2022, Philadelphia Magazine's Top Doctors in Pediatric Gastroenterology

2013-2015, Castle Connolly Top Doctors

2014-2015, 2018, 2022, South Jersey Magazine's Top Physicians in Pediatric Gastroenterology

2015, Children's Hospital of Philadelphia Division of Gastroenterology, Hepatology, and Nutrition Fellows' Faculty Teaching Award

2013, Children's Hospital of Philadelphia Pediatric Residency Faculty Honor Roll

2012, South Jersey Magazine "Top Children's Physicians"

2012, Division of Gastroenterology, Hepatology, and Nutrition Fellow Teaching Award

2011-2012, Who's Who in Medicine and Healthcare

2011-2013, SJ Magazine "Top Docs for Kids" - Pediatric Gastroenterology

2010-2011, American Registry "Patients' Choice Award" for Pennsylvania Physicians

2008, Komarov Research Competition, 3rd place

2003, Procter and Gamble Teaching and Tomorrow Program at the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition (NASPGHAN) Annual Meeting

1999, Robert Wood Johnson Champion's Scholarship

1998, Phi Beta Kappa National Honor Society, Duke University

1998, Alpha Kappa Delta National Honor Society, Duke University

1998, Summa Cum Laude, Duke University

1995, Phi Eta Sigma National Honor Society, Duke University

1995-1998, Dean's List with Distinction, Duke University

Editorial and Academic Positions

Academic and institutional committees

2022-present, Division of GI, Hepatology, and Nutrition Operations Improvement Committee
2021-present, Division of GI, Hepatology, and Nutrition Strategic Plan Steering Committee
2019-present, Division of GI, Hepatology, and Nutrition Fellowship Clinical Competency Committee
2013-present, Division of Gastroenterology, Hepatology, and Nutrition Fellowship Selection Committee
2009-present, Division of GI, Nutrition, and Hepatology Quality and Safety Committee

Leadership and Memberships

Memberships in professional organizations

International

2010-present, ImproveCareNow
 - 2014-present, Physician Leadership Committee
 - 2010-present, CHOP Site Leader

National

2008-present, Crohn's and Colitis Foundation of America
 - 2015-present, National Scientific Advisory Committee
 - 2010-present, Chapter Medical Advisory Committee
2005-present, North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN)
2005-present, American Gastroenterological Association (AGA)