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Jeffrey Roizen, MD, Pediatric Endocrinology, Philadelphia, PA

JeffreyDavidRoizenMDPhD, FAAP

Pediatric Endocrinology Philadelphia, PA

Pediatric Bone Metabolism Disorders, Pediatric Diabetes Endocrinology, Pediatric Obesity

Instructor(A) and Attending

Overview of Dr. Roizen

Dr. Jeffrey Roizen is a pediatric endocrinologist in Philadelphia, PA and is affiliated with multiple hospitals in the area, including Children's Hospital of Philadelphia and Hospital of the University of Pennsylvania. He received his medical degree from Washington University in St. Louis School of Medicine and has been in practice 9 years. He is one of 62 doctors at Children's Hospital of Philadelphia and one of 34 doctors at Hospital of the University of Pennsylvania who specialize in Pediatric Endocrinology. He has more than 60 publications and over 500 citings.

Education & Training

  • Children's Hospital of Philadelphia
    Children's Hospital of PhiladelphiaFellowship, Pediatric Endocrinology, 2010 - 2013
  • Children's Hospital of Philadelphia
    Children's Hospital of PhiladelphiaResidency, Pediatrics, 2008 - 2011
  • Washington University in St. Louis School of Medicine
    Washington University in St. Louis School of MedicineClass of 2008
  • Williams College
    Williams CollegeB.A., Chemistry and Biology (double major), With Honors, 1996 - 2000

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 2012 - 2026
  • NY State Medical License
    NY State Medical License 2012 - 2026
  • FL State Medical License
    FL State Medical License 2012 - 2025
  • PA State Medical License
    PA State Medical License 2008 - 2024
  • American Board of Pediatrics Pediatrics
  • American Board of Pediatrics Pediatric Endocrinology

Awards, Honors, & Recognition

  • Clinical Scholar Award Pediatric Endocrine Society, 2015
  • Outstanding Clinical Research Poster UPenn IDOM, 2015
  • Late Breaking Abstract ICE/ENDO, 2014
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Publications & Presentations

PubMed

Journal Articles

  • Obesity Decreases Hepatic 25‐Hydroxylase Activity Causing Low Serum 25‐Hydroxyvitamin D  
    Michael A Levine, Jeffrey D Roizen, Journal of Bone and Mineral Research
  • Decreased Serum 25-Hydroxyvitamin D in Aging Male Mice Is Associated with Reduced Hepatic Cyp2r1 Abundance  
    Jeffrey D Roizen, Michael A Levine, Endocrinology
  • Progress in understanding type 1 diabetes through its genetic overlap with other autoimmune diseases  
    Roizen JD, Bradfield JB, Hakonarson H, Current Diabetes Reports, 1/1/2015
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Books/Book Chapters

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Abstracts/Posters

  • Common polymorphism in Vitamin D 25-hydroxylase gene (CYP2R1) abrogates promoter activity.
    Roizen JD, Casella A, Levine M, J Bone Miner Res; ASBMR, 1/1/2015
  • Resting Energy Expenditure (REE) is Decreased in Pseudohypoparathyroidism Type 1A
    Roizen JD, Danzig J, Groleau V, Bhoj E, Mulchandani S, Casella A, Harrington J, Sochett E, Tershekovec A, Zemel B, Stallings V, Levine, M, University of Pennsylvania IDOM Annual Meeting, 1/1/2015
  • Decreasing CYP2R1 activity with aging is responsible for decreased calcidiol response to calciferol supplementation with age.
    Roizen JD, Casella A, Levine M, Endocrine Reviews; ENDO Society, 1/1/2014
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Lectures

  • Vitamin D in Children and Hyper and Hypocalcemia in Children 
    Lancaster, PA - 1/8/2015
  • Hypoparathyroidism, Pseudohypoparathyroidism and APS1 
    Sacramento, CA - 1/6/2014
  • Exenetide (Byetta) Prevents Obesity in Mouse Model of Hypothalamic Obesity. 
    1/1/2014
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Other

Press Mentions

  • How Obesity Affects Vitamin D Metabolism
    How Obesity Affects Vitamin D MetabolismFebruary 21st, 2019