Education and Training

Medical School

MD - Drexel University College of Medicine, Philadelphia, PA


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


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

Board Certification

Pediatrics – American Board of Pediatrics

Graduate Degree

MS in Human Nutrition - Columbia University College of Physicians and Surgeons, New York, NY

Titles and Academic Titles


Instructor, Perelman School of Medicine at the University of Pennsylvania

Conditions Treated

Departments and Services

Research Interests

Inflammatory bowel disease

Very early onset inflammatory bowel disease





Conrad MA, Carreon CK, Dawany N, Russo P, Kelsen JR.: Distinct histopathological features at diagnosis of very early onset inflammatory bowel disease. J Crohns Colitis April 2019.

Kelsen JR, Conrad MA, Dawany N, Patel T, Shraim R, Merz A, Maurer K, Sullivan KE, Devoto M: The Unique Disease Course of Children with Very Early Onset Inflammatory Bowel Disease. Inflammatory Bowel Diseases  izz214, September 2019.


Rosenbaum DG, Conrad MA, Biko DM, Ruchelli ED, Kelsen JR, Anupindi SA: Ultrasound and MRI predictors of surgical bowel resection in pediatric Crohn disease. Pediatric radiology 47(1): 55-64, Jan 2017.

Raina A, Conrad MA, Sahn B, Sedarat A, Ginsberg GG, Ahmad NA, Chandrasekhara V, Mamula P, Kochman ML: Endoscopic ultrasound with or without fine-needle aspiration has a meaningful impact on clinical care in the pediatric population. Endoscopic ultrasound 6(3): 195-200, May-Jun 2017.

Conrad MA, Dawany N, Sullivan KE, Devoto M, Kelsen JR: Novel ZBTB24 mutation associated with immunodeficiency, centromere instability, and facial anomalies type 2 syndrome identified in a patient with very early onset inflammatory bowel disease. Inflammatory Bowel Diseases 23(12): 2252-2255, Dec 2017.


Conrad MA, Cui Ji, Lin HC: Sertraline-Associated Cholestasis and Ductopenia Consistent with Vanishing Bile Duct Syndrome. The Journal of pediatrics 169(1): 313-5.e1, Feb 2016.

Conrad MA, Lin HC: Severe Colonic Stricture in Immunosuppressed Patient With Chronic CMV Colitis. Journal of pediatric gastroenterology and nutrition 63(1): e21, Jul 2016.

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): 2425-31, Oct 2016.


Luo M, Conrad M, Lin HC. Genetics of pediatric hepatoblastoma and hepatocellular carcinoma and their clinical application. American Journal of Digestive Diseases, 2014; 1(2):97-111.



Conrad MA, Bittinger K, Ren Y, Dawany N, Li H, Baldassano R, Bushman F, Kelsen JR: Taxonomic and metabolic differences among very early onset inflammatory bowel disease, older onset pediatric inflammatory bowel disease, and healthy children NASPGHAN Annual Meeting October  2018.

Conrad MA, Dawany N, Ren Y, Bittinger K, Baldassano R, Bushman F, Devoto M, Kelsen JR.: Genetic influence on developing microbiome in very early onset inflammatory bowel disease. American Gastroenterological Association Digestive Diseases Week  May  2018.


Conrad M, Carreon CK, Kelsen J, Russo P: Features of very early onset compared with older onset inflammatory bowel disease. Inflammatory Bowel Diseases 23(1): S68, February 2017.

Conrad M, Dawany N, Patel T, Sullivan KE, Devoto M, Kelsen JR. : Infliximab infusion reactions in very early onset and pediatric inflammatory bowel disease.  NASPGHAN Annual Meeting  October  2017.

Fusillo S, Olson T, Conrad M, Baldassano R, Grossman A, Kelsen J: Infliximab dose de-escalation in pediatric inflammatory bowel disease: A single-center experience. NASPGHAN Annual Meeting  October 2017.

Galgano A, Dawany N, Conrad MA, Sullivan K, Devoto M, Kelsen JR: Characterization of Infantile Inflammatory Bowel Disease. NASPGHAN Annual Meeting October 2017.


Conrad M, Wu G, Kelsen JR: The Gut Microbiota and Inflammatory Bowel Disease. Pediatric Inflammatory Bowel Diseases. Mamula P, Grossman AB, Baldassano R, Kelsen JR, Markowitz (eds.). Springer, 3: 45-54, 2017.


Liacouras C, Wendel D, Jump C, Conrad M, Hoffman N, Maxwell E, Muir A, Waisbourd-Zinman O. Gastroenterology in Polin and Ditmar (2016) Pediatric Secrets, 6th Edition, Philadelphia, PA: Elsevier.

Posters and Presentations


Conrad MA,  Bittinger K,  Ren Y,  Breton J,  Devas N, Devoto M,  Bushman F,  Baldassano R, Kelsen J: The intestinal microbiome in inflammatory bowel disease across the pediatric age range. Inflammatory Bowel Disease  25(S1), February  2019 Notes: oral abstract.


Hofstaedter C, Conrad M, Misic A, Fecteau M, Kelsen JR, Bittinger K, Beiting D, Sweeney R, Baldassano R.: Investigation of the presence of Mycobacterium avium subsp. paratuberculosis in children with Crohn disease using 1uantitative DNA sequence- based approaches  Poster Presentation at NASPGHAN Annual Meeting October  2017.

Awards and Honors

Cum Laude, The College of New Jersey

Alpha Omega Alpha Medical Honor Society, Drexel University College of Medicine

Salix Pharmaceuticals Fellowship2Leadership GI Fellows’ Travel Grant

NASPGHAN Young Investigator Travel Grant

Children’s Hospital of Philadelphia Entrepreneurial Science Scholar

Leadership and Memberships

Memberships in Professional Organizations

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

2013-current, American Gastroenterological Association

2013-current, Crohn’s & Colitis Foundation of America