Ronen Stein, MD

About Ronen Stein, MD

Titles

Gastroenterologist

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

Certifications

Pediatric Gastroenterology – American Board of Pediatrics

Pediatrics – American Board of Pediatrics

Awards and Honors

2021-2023, GI Fellows' Teaching Award Honor Roll, Children's Hospital of Philadelphia
2016, Research Poster Day Award, The Children’s Hospital of Philadelphia
2013, Science Day Resident Research Award, Rainbow Babies and Children's Hospital
2013, Third-Year Resident Teacher of the Year Award, Rainbow Babies and Children's Hospital
2012, Second-Year Resident Teacher of the Year Award, Rainbow Babies and Children's Hospital
​2011, First-Year Resident Teacher of the Year Award, Rainbow Babies and Children's Hospital

Leadership and Memberships

Memberships in Professional Organizations

International

2013-present, North American Society for Pediatric Gastroenterology, Hepatology and Nutrition

National

2013-present, Crohn's & Colitis Foundation of America
2013-present, American Gastroenterological Association

Editorial and Academic Positions

Editorial Positions

2020-present, Peer Reviewer, Pharmacoepidemiology and Drug Safety
2020-present, Peer Reviewer, Journal of Pediatric Gastroenterology and Nutrition

Academic and Institutional Committees

2019-present, Pediatric GI Fellowship Program Evaluation Committee

Education & training

Medical Degree

MD - Alpert Medical School of Brown University, Providence, RI

Residency

Pediatrics - Rainbow Babies and Children's Hospital, Cleveland, OH

Fellowship

Gastroenterology - The Children's Hospital of Philadelphia, Philadelphia, PA

Team affiliations

 View fewer all team affiliations View all all team affiliations

Publications

Publications

2023

Atia O, Shavit-Brunschwig Z, Mould DR, Stein R, Matar M, Aloi M, Ledder O, Focht G, Urlep D, Hyams J, Broide E, Weiss B, Levine J, Russell RK, Turner D: Outcomes, dosing and predictors of vedolizumab treatment in children: results from the prospective, multi-center VEDOKIDS study. The Lancet Gastroenterology & Hepatology 8(1): 31-42, January 2023.

Zhou Y, Shi J, Stein R, Liu X, Baldassano RN, Forrest CB, Chen Y, Huang J: Missing data matter: an empirical evaluation of the impacts of missing EHR data in comparative effectiveness research. Journal of the American Medical Informatics Association 30(7): 1246-1256, June 2023.

Crisci M, Vellanki S, Baldassano RN, Chen Y, Liu Y, Stein R, Hatch-Stein J: Growth hormone use in pediatric inflammatory bowel disease. J Pediatr Endocrinol Metab Epub. Ahead of Print, October 2023.

2022

Chen A, Stein R, Baldassano RB, Huang J: Learning longitudinal patterns and subtypes of pediatric Crohn disease treated with infliximab via trajectory cluster analysis. Journal of Pediatric Gastroenterology and Nutrition 74(3): 383-388, March 2022.

Atia O, Pujol-Muncunill G, Navas-Lopez VM, Orlanski-Meyer E, Ledder O, Lev-Tzion R, Focht G, Shteyer E, Stein R, Aloi M, Russell RK, Martin-de-Carpi J, Turner D: Children included in randomized clinical trials of biologics in inflammatory bowel diseases do not represent the real-world patient mix. Alimentary Pharmacology and Therapeutics 56(5): 794-801, September 2022.

Constant BD, Baldassano R, Kirsch J, Mitchel EB, Stein R, Albenberg L: Tofacitinib salvage therapy for children hospitalized for corticosteroid- and biologic-refractory ulcerative colitis. Journal of Pediatric Gastroenterology and Nutrition 75(6): 724-730, December 2022.

2021

Moore H, Dubes L, Fusillo S, Baldassano RN, Stein R: Tofacitinib therapy in children and young adults with pediatric-onset medically-refractory inflammatory bowel disease. Journal of Pediatric Gastroenterology and Nutrition 73(3): e57-e62, September 2021.

2019

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 Diseases 22(10): 2425-2431, October 2019.

2018

Sahn B, De Matos V, Stein R, Ruchelli E, Masur S, Klink AJ, Baldassano RN, Piccoli DA, Russo P, Mamula P.: Histological features of ileitis differentiating pediatric Crohn disease from ulcerative colitis with backwash ileitis. Digestive and Liver Disease 50(2): 147-153, February 2018.

Stein R, Plantz K, Maxwell EC, Mamula P, Baldassano RN: Intravenous iron sucrose for treatment of iron deficiency anemia in pediatric inflammatory bowel disease. Journal of Pediatric Gastroenterology and Nutrition 66(2): e51-e55, February 2018.

2016

Conrad MA*, Stein RE*, Maxwell EC, Albenberg L, Baldassano RN, Dawany N, Grossman AB, Mamula P, Piccoli DA, Kelsen JR.  Vedolizumab in severe pediatric inflammatory bowel disease. Inflamm Bowel Dis. 2016 Oct;22(10):2425-31. *Co-first authorship

Stein R, Lee D, Leonard MB, Thayu M, Denson LA, Chuang E, Herskovitz R, Kerbowski T, Baldassano RN. Serum infliximab, anti-drug antibodies, and tumor necrosis factor predict sustained response in pediatric Crohn disease. Inflamm Bowel Dis. 2016 June;22(6):1370-7. 

2015

Stein R, Chelimsky T, Li H, Chelimsky G: Functional gastrointestinal disorders in a primary care clinic. Global Pediatric Health 2: 1-9, 2015 Notes:  doi: 10.1177/2333794X14568452.

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. J Ped Infect Dis  4(3): 267-271, September 2015.

Editorials, Reviews, Chapters
2023

Ronen E Stein, Sudha Anupindi, and Robert N Baldassano: Inflammatory Bowel Disease. Nelson Textbook of Pediatrics 22nd edition, 2023 Notes: Chapter.

Ronen Stein and Robert Baldassano: Eosinophilic Gastroenteritis. Nelson Textbook of Pediatrics 22nd edition, 2023 Notes: Chapter.

2021

Stein RE and Mascarenhas MR: Nutrition in inflammatory bowel disease. Nutrición en Pediatría. Adriana Fernandez and Debora Setton (eds.). Ed Panamericana, 2nd edition, 2021 Notes: Chapter.

Stoner N, Stein RE: Dietary therapies for inflammatory bowel disease. Pediatric Inflammatory Bowel Disease. Mamula, P., Grossman, A.B., Baldassano, R.N., Kelsen, J.R., Markowitz, J.E (eds.). 4th Edition , 2021 Notes: Chapter.

2020

Stein RE and Baldassano RN: Eosinophilic gastroenteritis. Nelson Textbook of Pediatrics. Kleigman RM, St Geme JW, Shah SS, Tasker RC, Wilson KM (eds.) Elsevier, 21st edition: 1987, 2020.

Stein RE and Baldassano RN: Inflammatory bowel disease. Nelson Textbook of Pediatrics. Kleigman RM, St Geme JW, Shah SS, Tasker RC, Wilson KM (eds.) Elsevier, 21st edition: 1973-86, 2020.

2017

Stein RE and Baldassano RN: Dietary therapies for inflammatory bowel disease. Pediatric Inflammatory Bowel Disease. Mamula, P., Grossman, A.B., Baldassano, R.N., Kelsen, J.R., Markowitz, J.E (eds.). Springer, 3rd edition: 473-483, 2017.

Patient experience rating

(based on 231 submissions)
  • Clear Explanation
    5 of 5
  • Showed Concern
    5 of 5
  • Would recommend
    5 of 5
  • Discussion of Proposed Treatment
    5 of 5
Learn about the patient experience rating system

Comments

  • Dr. Stein was extremely kind, thorough and thoughtful. I feel fortunate that he is taking care of my son.
    5 of 5
    Mar 31, 2025

  • The doctor was friendly and nformative with a great bedside manner.
    5 of 5
    Mar 02, 2025

  • Dr. Stein is a great doctor!!!!
    5 of 5
    Jan 31, 2025

  • Dr stein is awesome. Really appreciate his time, care and recommendations.
    5 of 5
    Jan 16, 2025

  • Dr Stein is amazing I wish all doctors were so caring and knowledgeable like him
    5 of 5
    Jan 14, 2025

  • Dr. Stein was excellent. He listened to our daughter's concerns and addressed them properly. We are working through a difficult problem but is doing so in a great way.
    5 of 5
    Dec 27, 2024

  • We feel lucky to have Dr. Stein as a part of our team caring for our son. He is one of the most caring doctors, not only caring towards my child but towards me and my partner as well as we navigate our child's care. And any medical concerns we have, I feel confident in his knowledge and judgment.
    5 of 5
    Dec 17, 2024

  • Dr. Stein provides excellent care to my son. He is extremely knowledgeable and takes the time to explain treatment options in detail. I appreciate how he involves my son in every appointment; it demonstrates how he always puts his patients first. I also like how he asks me multiple times if I have any more questions. I never feel rushed. We are truly lucky to be in Dr. Stein's care.
    5 of 5
    Dec 15, 2024

  • Dr. Stein always goes above and beyond. We have been under his care now for 2 years. I cannot recommend him enough. He helped us through a challenging time earlier this year when our son was experiencing some nerve-wracking symptoms. Dr. Stein answered every call and MyChart message quickly and thoroughly. He did a complete work up and assisted with expedited care in other specialties. As a worried and concerned parent, Dr. Stein could not have done a better job caring for our son. Even during appointments when our son is not on best behavior, Dr. Stein is engaging and patient.
    5 of 5
    Nov 13, 2024

  • Dr. Stein was excellent. Very knowledgeable and patient. He took time to listen to everything my son and I had to say, and answered all of our questions. We never felt rushed, and we feel confident going forward with his recommendations.
    5 of 5
    Oct 18, 2024

  • Dr Stein was listened very closely, asked questions, and thorough in his conclusion explaining how he came to his recommendation. You can tell he was genuine and treated us like he was familiar and not just another number. Personable. Thank you Dr Ronan Stein!
    5 of 5
    Oct 04, 2024

  • Dr. Stein always takes his time to educate us on treatment and listens to our concerns.
    5 of 5
    Aug 17, 2024

  • Great doctor! Always makes my son feel at ease.
    5 of 5
    Jul 28, 2024

  • Dr. Stein is a fantastic doctor. I trust him and have total confidence in his recommendations for my son's treatment. I like how he repeatedly asks me if I have questions, and he takes a lot of time to explain things thoroughly. I also appreciate how he reviews what we talked about at the end of the visit. He is kind and caring to my son. It is clear he always has the child's best Interests in mind. I am so happy he is taking care of my son!
    5 of 5
    Jul 26, 2024

  • I was very impressed that Dr. Stein was aware of Ehlers-Danlos Syndrome and how it can impact the digestive system. He took the time to answer my questions and explain what's happening to cause the issues we're seeing, and he gave me the chance to ask as many questions as I needed.
    4.6 of 5
    Jul 23, 2024

  • We appreciate Dr. Stein. We get frustrated that we can't get appointments sooner when we have issues, but that is not his fault. We also get frustrated with our son's condition and that it's just a guessing game to figure out what will help. Again, we trust Dr. Stein and think he is on top of things; we just want it to go away!
    4.8 of 5
    Jul 14, 2024

  • Dr. Stein is incredible. He is the greatest doctor we have see thus far. He is a wonderful patient advocate to and truly cares about his patients. We're lucky to have found him.
    5 of 5
    Jul 09, 2024

  • DR Stein Is Fantastic!!! He is the only doctor my daughter likes!
    5 of 5
    Jun 13, 2024

  • Dr. Stein is a phenomenal doctor and he has been wonderful for our son for quite a few years now. We feel very lucky our son is in the care of such a skilled and wonderful doctor.
    5 of 5
    Jun 12, 2024

  • Very thorough appointment where all concerns and possibilities were considered. I feel as though we left there was an appropriate plan of action
    5 of 5
    Apr 17, 2024

  • Dr Stein was very collaborative and explained everything really well.
    5 of 5
    Apr 17, 2024

  • Dr. Stein always goes above and beyond for us. We let him know regularly how grateful we are for him and his attentiveness. We are truly thankful to have our son under his care. He always explains everything not only to me but also to my son as well. I cannot say enough good things about him.
    5 of 5
    Apr 15, 2024

  • Dr. Stein is the best!!
    5 of 5
    Apr 14, 2024

  • Dr Stein is always incredible. Kind, caring, compassionate and thorough
    5 of 5
    Apr 12, 2024

  • Dr Stein is incredibly patient and answers all our questions. We appreciated all his knowledge and support. Thank you Dr STEIN!
    5 of 5
    Apr 06, 2024

  • Dr Stein was patient and addressed my daughter with dignity. Listening to her and working to find solutions
    5 of 5
    Apr 05, 2024

  • Dr. Stein has been amazing. He spends a lot of time with else and explains everything well.
    5 of 5
    Apr 05, 2024

  • I feel like dr stein went above and beyond what most doctors do. Explained everything and even reached out to other doctors for us
    5 of 5
    Apr 03, 2024

  • We are incredibly grateful for Dr. Stein's care. He listens to our concerns and educates us. THANK YOU DR. STEIN
    5 of 5
    Apr 01, 2024

  • Excellent visit. Dr was very attentive, empathetic, explained everything throughly
    5 of 5
    Mar 15, 2024

  • Never feel rushed by his doctor at all!
    5 of 5
    Mar 12, 2024

  • Dr. Stein went above and beyond for my daughter. He listened to every single concern I had. I am thrilled with the care my daughter received. I would recommend him 100 times over
    5 of 5
    Feb 29, 2024

  • I cannot praise Doctor Stein enough! He is extremely thorough, patient, well informed, and above all else, he listens. He needs to be nominated for a Top Doc award!
    5 of 5
    Feb 25, 2024

  • Love Dr. Stein. He is extremely attentive.
    5 of 5
    Feb 19, 2024

  • I feel so lucky to have a doctor as incredible as Dr. Stein local and available. He is the most caring, considerate, patient doctor I have ever met. He is wonderful with listening to all my concerns as a parent and talking kindly to my son as well. I wish I could see him for everything!
    5 of 5
    Feb 16, 2024

  • Very thorough
    5 of 5
    Feb 03, 2024

  • Dr Stein is an exceptional doctor and person. He shows so much care for his patients and their family. He always listens to your concerns
    5 of 5
    Jan 28, 2024

  • Dr. Stein ask appropriate questions and listens to my child's concerns to understand his medical needs.
    4.6 of 5
    Jan 26, 2024

  • I was so impressed with Dr. Stein. He listened to my concerns, took the time to ask questions, and constructed a very detailed plan. He was very methodical in thinking through the various differential diagnoses and the best way in which we can figure out what is causing my child's symptoms. I greatly appreciated the detailed follow up notes and referral letter he sent to our pediatrician letter. This was the best experience I have had with a CHOP provider.
    5 of 5
    Jan 12, 2024

  • Dr. Stein is a wonderful doctor. We are grateful for the time he takes with us, his accessibility, and his genuine care.
    5 of 5
    Dec 09, 2023

  • We adore Dr. Stein. He has been the most wonderful caretaker throughout this entire process and diagnosis. His level of care is outstanding and he deserves the recognition for being the wonderful doctor he is!
    5 of 5
    Nov 19, 2023

  • Dr. Stein is always providing us with education on the disease and treatments. We are grateful for his help! We would highly recommended him.
    5 of 5
    Nov 16, 2023

  • Dr Ronen Stein is wonderful
    5 of 5
    Nov 15, 2023

  • Amazing doctor, really grateful
    5 of 5
    Nov 15, 2023
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