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Pediatric Endocrinology

Program Director's Message

The hallmark of NYU Winthrop Hospital's Pediatric Endocrinology Fellowship is its access to uncommon as well as common endocrine disorders. The extraordinarily challenging case mix includes relatively large numbers of Prader-Willi Syndrome patients, growth hormone deficient patients, and those with intersex problems. The relationship between the clinical disorders and the underlying genetic causes is actively pursued by fellows as they rotate between clinical practice and the Endocrinology Laboratory. Our fellowship is a model of bench-to-bedside-to-bench exploration. In this strong academic environment, pediatric endocrinology fellows are encouraged to attend both national and international conferences, where they have presented research findings. Post fellowship graduates are routinely recruited to positions in academic medical centers.


  • Approximately 400 growth hormone-deficient patients per year and approximately 200 Prader-Willi Syndrome patients per year; Prader-Willi practice is one of the largest in the country
  • Specialized expertise in the treatment of intersex problems
  • Educational focus on genetic aspects of endocrine diseases
  • Faculty internationally recognized in their areas of expertise
  • Active involvement in ongoing research in NYU Winthrop's Endocrine and Metabolism Laboratory
  • One-on-one mentoring with a faculty that has diverse and complementary areas of expertise
  • Generous house staff benefits, including heavily subsidized housing and complimentary meals


A three-year fellowship emphasizing clinical skills as well as basic and clinical research. The fellow participates in the care of children and adolescents with a wide range of endocrine disorders, including: growth hormone deficiency, diabetes mellitus, thyroid diseases, adrenal and gonadal disorders, ambiguous genitalia and intersex problems, abnormal pubertal development and hirsutism.

Rotations in Months

  NYU Winthrop Pediatric
Endocrine and
Metabolism Practice
PGY 4 9 3
PGY 5 6 6
PGY 6 3 9

Key Faculty

  • Mariano Castro-Magana, MD, Director, Pediatric Endocrinology and Metabolism. Professor of Clinical Pediatrics, SUNY at Stony Brook School of Medicine. Research interests: Growth Hormone, Adrenal and Gonadal Problems, Ambiguous Genitalia
  • Siham Accacha, MD, Research interests: obesity, type II diabetes, and polycystic ovarian syndrome
  • Moris Angulo, MD, Director, Genetics. Associate Professor of Clinical Pediatrics, SUNY at Stony Brook School of Medicine. Research interests: Metabolic Diseases, Obesity, Prader-Willi
  • Raul Arguello, MD, Attending Pediatric Endocrinologist, South Nassau Communities Hospital.
  • James Yeh, PhD, Director, Metabolism Laboratory. Professor of Medicine, SUNY at Stony Brook School of Medicine. Research interests: Bone Biology and Endocrine-related Calcium Homeostasis