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Michelle Klein

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  • Pediatric Endocrinology

  • American Board of Pediatrics


  • MD, New York Medical College

  • Chief Resident, Mount Sinai School of Medicine

  • Residency, Pediatrics
    Mount Sinai School of Medicine

  • Fellowship, Pediatric Endocrinology
    Mount Sinai Hospital


    Dr. Klein is a clinician and clinical researcher in the Division of Pediatric Endocrinology and Diabetes here at Mount Sinai. She is also in private practice seeing both general pediatric patients and pediatric endocrinology patients at Uptown Pediatrics, a Mount Sinai affiliated practice. His clinical and research interests include: growth, precocious and delayed puberty, Type 1 and Type 2 diabetes mellitus, adrenal disorders, PCOS, and thyroid disorders. Dr. Klein supervises both pediatric fellows and residents in general pediatrics and pediatric endocrinology and is involved in teaching fellows, residents, and medical students.


Chacko E, Graber E, Buono A, Wallach E, Regelmann M, Annunziato R, Klein M, Chia D, Rapaport R. Arginine and Levo-Dopa Stimulation in Children: Timing of Peak Growth Hormone Response and Correlation with Body Mass Index .;.

Chacko E, Graber E, Wallach E, Regelmann M, Annunziato R, Klein M, Chia D, Rapaport R. Arginine and Levo-Dopa Stimulation in Children: Association of Peak Growth Hormone Response with Homeostatic Model Assessment and Lipids .;.

Klein M, Regelmann M, Annunziato R, Chacko E, Iazzetti L, Wallach E, Hyman S, Chia D, Rapaport R. Sex Steroids and Gonadotropins during Treatment with Yearly Histrelin or Monthly Leuprolide Acetate in Youth .;.

Klein M, Rapaport R. Growth Hormone treatment in Children Born Small for Gestational Age — Adult Height and Metabolic Consequences. . US Endocrinology 2010; 6: 63-70.

Klein M, Iazzetti L, Simpser T, Rosenbaum M, Accacha S, Altshuler L, Carey D, DeSantis S, Fennoy I, Lowell B, Rosenfeld W, Shelov S, Speiser P, Ten S, Ten R. Normal Alanine Transferase: An Independent Indicator of Adiposity Related Comorbidity in Youth . The Endocrine Society's 92nd Annual Meeting, San Diego 2010 June 19-22;.

Shapiro S, Klein M, Regelmann M, Fen Y, Wallach E, Hyman S, Godbold J, Godbold R. SHOX Gene Variants: Growth Hormone/IGF-I Status and Response to Growth Hormone Treatment. . The Endocrine Society's 92nd Annual Meeting in San Diego 2010 June 19-22;.

Klein M, Regelmann, et al. M. Hypogonadal Hypogonadism and Anosmia in Nail Patella Syndrome .;.

Klein M, Simper T, Shapiro S, Regelmann M, Iazzetti L, Wallach E, Hyman S, Rapaport R. Clinical Experience with Detemir in Youth Mellitus . June 29, 2010;.

Klein M, Sathasivam A, Novoa Y, Rapaport R. Recent Consensus Statements in Pediatric Endocrinology: A Selective Review. Endocrinol Metab Clin North Am 2009 December; 38(4): 811-825.

Klein M, Shapiro, et al. S. Continuous Glucose Monitoring in Patients with Glucokinase Deficiency (GKD). The Endocrine Society's 91st Annual Meeting, Washington D.C. 2009 June 10-13;.

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Dr. Klein did not report having any of the following types of financial relationships with industry during 2015 and/or 2016: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.

Insurance Information

Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).

Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.

Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.

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Uptown Pediatrics

1245 Park Avenue
New York, NY 10128

Tel: 212-427-0540
Fax: 212-534-1086
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