Dennis Styne, M.D.

Dennis M. Styne, M.D.



Pediatric Endocrinology




  • Professor of Pediatrics, Yocha Dehe Endowed Chair in Pediatric Endocrinology


To see if Dennis M. Styne is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

Glassrock Building

2521 Stockton Blvd., Suite 3200
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

Clinic Phone: 916-734-8336
Clinic Fax: 916-734-1241
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Philosophy of Care

I understand that complex endocrine conditions in a child may affect the whole family and I guide my care to include the family unit. As a result of this, I work alongside an excellent team of nurses, dietitians and social workers as the family proceeds through the evaluation and treatment process.

I aim to only perform laboratory or radiographic tests when truly indicated so as to spare the child or teenager discomfort and expense. I see my patients on a consistent basis providing continuity of care.

Since I practice in our university system, the patient and family can be assured of having state of the art treatment the same as what can be provided at fine institutions across the world.

Indeed our team develops new comprehensive methods of evaluation and treatment to benefit the patients and to teach other doctors how to provide such excellent care.

Clinical Interests

Dr. Styne cares for all types of pediatric endocrine patients and has written a text book on the subject. He is interested in obesity, growth disorders, disorders of puberty and of course, diabetes mellitus but accepts children and teenagers with any disorder of the endocrine system.  

Dr. Styne is an expert in all areas of Pediatric Endocrinology and has written a textbook on the subject for providers around the world. He Is also a leader in the evaluation and treatment of childhood obesity and the complications that arise from it.

Research/Academic Interests

Dr. Styne is considered an authority on puberty, growth and obesity and has numerous publications in these areas and many others. He leads the International team that developed guidelines for the evaluation and treatment of childhood obesity. He has an avid interest in the effects of endocrine disrupting chemicals in the environment on the development of children.  

Dr. Styne has performed research and published chapters and papers on many aspects of pediatric endocrinology. While his initial focus was on disorders of growth and puberty more recently he has turned his attention to childhood obesity and its effects. He is recognized as an outstanding teacher and is asked to give presentations across the country and internationally on topics of pediatric endocrinology.


Pediatric Endocrinology

Center/Program Affiliation

UC Davis Children's Hospital
Center for Health and Technology


M.D., Northwestern University, Chicago IL 1971

B.S., Northwestern University, Evanston IL 1969

Internship: Pediatrics, UC San Diego, San Diego CA 1971-1972


Pediatrics, UC San Diego, San Diego CA 1972-1973

Pediatrics, Yale - New Haven Hospital, New Haven CT 1973-1974


Pediatric Endocrinology, UC San Francisco, San Francisco CA 1974-1977

Board Certifications

American Board of Pediatrics, 1976

American Board of Pediatrics, Pediatric Endocrinology, 2002

National Board of Medical Examiners, 1971

Professional Memberships

American Academy of Pediatrics

American Pediatric Society

Endocrine Society

Obesity Society

Pediatric Endocrine Society

Western Society for Pediatric Research

Honors and Awards

2007 - 2015 Best Doctors in America,

Dean's Excellence in Mentoring, UC Davis Medical Center, School of Medicine, Department of Pediatrics, 2013

Medical Student Research Forum Appreciation Award (for mentoring Mo Mortazavi, MD), 2008

Frank Oski, MD Distinguished Visiting Professor, Syracuse, NY, 2007

University of Oregon Health Sciences, 31st Annual Bilderback Lecture, 2006

Yocha Dehe Endowed Chair in Pediatric Endocrinology 2006-,

Select Recent Publications

Styne DM: Pediatric Endocrinology - A Clinical Handbook, Springer International Publishing AG, Vol. 1, Cham, Switzerland. 2016.

Styne DM and Grumbach MM: Physiology and Disorders of Puberty, Melmed & Polonsky & Larsen @ Cronenbery, (ed) Williams Textbook of Endocrinology. 2016;Ch.25, Vol. 13, Elsevier, pp. 1074-1218.

Jernigan VB, Jacob T, Tribal Community Research Team, Styne D. The adaptation and implementation of a community-based participatory research curriculum to build tribal research capacity. Am J Public Health. 2015;105(Supp 3): S424-32.

Henrichs KL, McCauley HL, Miller E, Styne DM, Saito N, Breslau J. Early Menarche and Childhood Adversities in a Nationally Representative Sample. 2014;1(14): epub 2014 Jul 15.

Ziegahn L, Styne D, Askia J, Roberts T, Lewis ET, Edwards W. Collaborative Strategies for Diabetes and Obesity Prevention and Reduction in Sacramento: The African American Leadership Coalition and University of California Davis. Preventing Chronic Disease - Public Health Research, Practice, and Policy. 2013;Nov 14(10): E187-196.

Lee Y, Styne D. Influences on the onset and tempo of puberty in human beings and implications for adolescent psychological development. Hormones and Behavior. 2013; 64(2): 250-261.

Loomba-Albrecht LA, Styne DM. The physiology of puberty and its disorders. Pediatr Ann. 2012 Apr;41(4):e1-9

Loomba-Albrecht LA, Bremer AA, Styne DM, Glaser NS. High frequency of cardiac and behavioral complaints as presenting symptoms of hyperthyroidism in children. J Pediatr Endocrinol Metab. 2011;24(3-4):209-13.

Liang L, Chantry C, Styne DM, Stephensen CB. Prevalence and risk factors for vitamin D deficiency among healthy infants and young children in Sacramento, California. Eur J Pediatr. 2010 Nov;169(11):1337-44.

Styne DM. Childhood obesity in American Indians. J Public Health Manag Pract. 2010 Sep-Oct;16(5):381-7.

Recent Videos


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