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Claudia Phen, M.D.

Claudia Phen, M.D.

Titles and Appointments

Assistant Professor

Schools
Medical School
Departments
Pediatrics

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For more information on the doctor and patient care, please visit the clinical profile.

  • Biography

    Claudia Phen, M.D., is an Assistant Professor in the Department of Pediatrics at UT Southwestern Medical Center. She specializes in gastroenterology, hepatology, and nutrition, focusing on gastrointestinal polyposis, hereditary GI cancer syndromes, and liver disease.

    Dr. Phen earned her medical degree at the University of Florida College of Medicine. She completed a residency in pediatrics at Johns Hopkins All Children’s Hospital and received advanced training through a pediatric gastroenterology, hepatology, and nutrition fellowship at UT Southwestern and Children’s Health.

    Certified by the American Board of Pediatrics in General Pediatrics and Pediatric Gastroenterology, she joined the UT Southwestern faculty in 2021.

    Dr. Phen is a member of the North American Society for Pediatric Gastroenterology, Hepatology & Nutrition (NASPGHAN) through which she is an active member of the Pediatric Polyposis Special Interest Group. She has delivered numerous presentations, both locally and nationally, and published several peer-reviewed articles related to her area of expertise.

    She has a special interest in gastrointestinal polyposis syndromes, hereditary GI cancer syndromes, and liver diseases. She enjoys patient care and teaching medical learners. She strives to educate and empower her patients so they can lead longer, healthier lives.

    In her spare time when not at work, Dr. Phen enjoys traveling, trying new restaurants, and spending time with her husband, son, and two dogs.

  • Education
    Medical School
    University of Florida College of Medicine (2015)
    Residency
    Johns Hopkins Medicine All Children's Hospital (2018), Pediatrics
    Fellowship
    UT Southwestern/Children's Medical Center (2021), Pediatric Gastroenterology
  • Research Interest
    • Hereditary GI Cancer Syndromes
    • Liver Disease
    • Pediatric Polyposis
  • Publications
    Clinical impact and diagnostic yield of small bowel capsule endoscopy in children
    Kaihlanen K, Zhang S, Phen C, Rojas I Journal of pediatric gastroenterology and nutrition 2026 Feb 82 389-397
    Pediatric Lynch syndrome: Clinical, genotypic, and left-sided patterns of colorectal cancer
    Phen C, Rojas I, Friesen HJ, Swaggart K, Flahive CB, MacFarland SP, Attard T Journal of pediatric gastroenterology and nutrition 2026
    From Genes To Gut: Evolving Strategies in Pediatric Polyposis Syndromes
    Rojas I, Phen CC Current Treatment Options in Pediatrics 2025 Dec 11
    Current Practice of Hereditary Polyposis Syndromes in Children: A Survey of Providers Treating Pediatric Patients
    Kurowski JA, Phen C, Liska D, Kay MH, DeRoss AL, Worley S, Burke CA, Attard TM Cancer Prevention Research 2025 Oct 18 603-614
    Guidelines on Management of Hereditary Polyposis Syndromes in Pediatric Patients: Agreement, Disagreement and Where It Matters
    Hudson T, Phen C, Rojas I, Cohen S, Hyer W, Attard T Gastrointestinal Disorders 2025 Mar 7
    Juvenile polyposis syndrome in children: The impact of SMAD4 and BMPR1A mutations on clinical phenotype and polyp burden
    Cohen S, Yerushalmy-Feler A, Rojas I, Phen C, Rudnick DA, Flahive CB, Erdman SH, Magen-Rimon R, Copova I, Attard T, Latchford A, Hyer W Journal of pediatric gastroenterology and nutrition 2024 Jul 79 161-167
    The Role of Capsule Endoscopy in the Management of Pediatric Hereditary Polyposis Syndromes
    Phen C, Attard TM Journal of pediatric gastroenterology and nutrition 2023 Oct 77 442-444
    Polygenic early-onset colorectal cancer in pediatric patients
    Phen C, Berens D, Moriarty K, Ng K, Sengupta A, Rojas I Pediatric Blood and Cancer 2022 Oct 69
    Paediatric polyposis syndromes: Burden of disease and current concepts
    Phen C, Rojas I Current opinion in pediatrics 2021 Oct 33 509-514
    MTOR inhibitors reduce enteropathy, intestinal bleeding and colectomy rate in patients with juvenile polyposis of infancy with PTEN-BMPR1A deletion
    Taylor H, Yerlioglu D, Phen C, Ballauff A, Nedelkopoulou N, Spier I, Loverdos I, Busoni VB, Heise J, Dale P, De Meij T, Sweet K, Cohen MC, Fox VL, Mas E, Aretz S, Eng C, Buderus S, Thomson M, Rojas I, Uhlig HH Human molecular genetics 2021 Jul 30 1273-1282
  • Honors & Awards
    • Presenter of the Year Award
      Awarded by the UTSW Pediatric Residency Program (2023)
    • Clinical Training Grant
      Awarded by the Cystic Fibrosis Foundation (2018-2020)
    • Institutional Research Grant
      Awarded by Johns Hopkins All Children's Hospital (2018)
    • Peers Recognizing Peers Resident Award for Outstanding Care
      Awarded by Johns Hopkins All Children's Hospital (2017)
    • Resident Scholar of the Year Award
      Awarded by Johns Hopkins All Children's Pediatric Residency Program (2017)
    • Jean Lester Bennett Scholarship for Outstanding Performance in Pediatrics
      Awarded by the University of Florida College of Medicine (2015)
  • Professional Associations/Affiliations
    • American Academy of Pediatrics (2015-2023)
    • North American Society of Pediatric Gastroenterology, Hepatology and Nutrition (2018-2023)