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Paul Kaplowitz, MD, PhD

Awards and Recognition:

    Top Doctors
    No. Va. Magazine
    (2015, 2016)

View My Research Profile


Languages Spoken

  • English


Board Certifications

  • American Board of Pediatrics
  • American Board of Pediatrics/Endocrinology

National Provider ID: 1417038035

This faculty member (or a member of their immediate family) has a working relationship (i.e. consulting, research, and/or educational services) with the companies listed below. These relations have been reported to the health system leadership and, when appropriate, management plans are in place to address potential conflicts.

Outside Interests

  • Consulting for drug company 



Paul B. Kaplowitz, MD, PhD, is an endocrinology in the Division of Endocrinology at Children's National Health System. Dr. Kaplowitz has practiced pediatric endocrinology since 1982 and has published more than 55 papers, particularly in the area of growth and puberty disorders. He published an article in Pediatrics in 1999 that reviewed data suggesting puberty in girls was starting earlier than in the past. This touched off a period of heightened scientific and media discussion of whether female puberty was in fact starting earlier and if so, why. An article he published in Pediatrics in 2001 supported the idea that the increase in obesity might be driving the trend for earlier onset of puberty.

He has been an advocate for caution in the use of therapies, such as growth hormone and Lupron, for children who are borderline in their growth or pubertal maturation. Among his current research interests are the effect of hypothyroidism and hyperthyroidism on weight gain and weight loss in children, and the significance of a borderline elevation of serum TSH, as well as suppression of TSH without other signs of hyperthyroidism.

Dr. Kaplowitz is married and has two sons and two grandchildren.

Education & Training

Education & Training

  • Fellowship Program, Pediatric Endocrinology, 1982
    University of North Carolina Hospital
  • Residency Program, Pediatrics, 1979
    University of North Carolina Hospital
  • PhD, 1976
    University of Chicago
  • MD, 1976
    University of Chicago Pritzker School of Medicine
  • BS, 1970
    University of Michigan


Research & Publications

Research & Publications

Clinical Characteristics of 104 Children Referred for Evaluation of Precocious Puberty

(2004) Journal of Clinical Endocrinology and Metabolism

Increased Body Mass Index and Race in Relation to the Earlier Onset of Puberty in Girls

(2001) Pediatrics

Precocious puberty

(2008) Pediatrics: An On-Line Medical Reference

Precocious Puberty Update on Secular Trends Definitions Diagnosis and Treatment

(2004) Advances in Pediatrics

View publications on PubMed

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