- Collaborative Group of the Americas on Inherited Colorectal Cancer
- North American Society for Pediatric Gastroenterology, Hepatology & Nutrition
Claudia Phen, M.D.
- Pediatrics - Gastroenterology
- Pediatric Gastroenterology, Hepatology, and Nutrition
- Pediatric Polyposis
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, with a focus on pediatric polyposis, hereditary GI cancer syndromes, and fatty 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 Medical Center Dallas.
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 Collaborative Group of the Americas on Inherited Colorectal Cancer and the North American Society for Pediatric Gastroenterology, Hepatology & Nutrition and its Pediatric Polyposis Special Interest Group.
She has delivered numerous invited lectures, both locally and nationally, and published peer-reviewed articles related to her areas of expertise.
Dr. Phen sees patients at Children’s Medical Center Dallas and the UT Southwestern Pediatric Digestive Diseases clinic in Plano. She enjoys patient care and teaching medical learners. She strives to educate and empower her patients, so they can lead longer, healthier lives.
Personal Note
When she’s not at work, Dr. Phen enjoys traveling, trying new restaurants, and spending time with her husband, son, and two dogs.
Education & Training
- Medical School - University of Florida College of Medicine (2011-2015)
- Residency - Johns Hopkins Medicine All Children's Hospital (2015-2018), Pediatrics
- Fellowship - UT Southwestern/Children's Medical Center (2018-2021), Pediatric Gastroenterology
Professional Associations & Affiliations
Honors & Awards
- Presenter of the Year, House Staff Core Curriculum 2023, UT Southwestern and Children’s Medical Center Dallas
- Clinical Training Grant, Fellowship Years 1 and 2 2018-2020, Cystic Fibrosis Foundation
- Institutional Research Grant 2018, Johns Hopkins All Children’s Hospital
- Resident Scholar of the Year Award 2017, Johns Hopkins All Children’s Hospital
- Peers Recognizing Peers Resident Award for Outstanding Care 2017, Johns Hopkins All Children’s Hospital
Books & Publications
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Publications
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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 -
Hepatic Steatosis in the Pediatric Population: An Overview of Pathophysiology, Genetics, and Diagnostic Workup
Phen C, Ramirez CM Clinical Liver Disease 2021 Mar 17 191-195 -
Effectiveness and Complication Rate of Percutaneous Endoscopic Gastrostomy Placement in Pediatric Oncology Patients
Kidder M, Phen C, Brown J, Kimsey K, Oshrine B, Ghazarian S, Mateus J, Amankwah E, Wilsey M Pediatric Gastroenterology, Hepatology and Nutrition 2021 24 546-554 -
Gastric xanthoma in the pediatric population: A possible herald for malignancy?
Russell JD, Peck J, Phen C, Linehan JL, Karjoo S, Nguyen J, Wilsey MJ Pediatric Gastroenterology, Hepatology and Nutrition 2020 Jan 23 110-114 -
Non-surgical management of gastroduodenal fistula caused by ingested neodymium magnets
Phen C, Wilsey A, Swan E, Falconer V, Summers L, Wilsey M Pediatric Gastroenterology, Hepatology and Nutrition 2018 Oct 21 336-340 -
Endoscopic balloon dilation for treatment of congenital antral web
Peck J, Khalaf R, Marth R, Phen C, Sosa R, Cordero FB, Wilsey M Pediatric Gastroenterology, Hepatology and Nutrition 2018 Oct 21 351-354 -
Cholestasis beyond the neonatal and infancy periods
Khalaf R, Phen C, Karjoo S, Wilsey M Pediatric Gastroenterology, Hepatology and Nutrition 2016 Mar 19 1-11
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Clinical impact and diagnostic yield of small bowel capsule endoscopy in children
Research
- Pediatric polyposis
- Hereditary GI cancer syndromes
- Fatty liver disease
Clinical Focus
- Pediatric Gastroenterology, Hepatology, and Nutrition
- Pediatric Polyposis
- Hereditary GI Cancer Syndromes
- Fatty Liver Disease