Dr. Timothy K. Flannery, Pediatric Endocrinology

Dr. Timothy K. Flannery, Pediatric Endocrinology

  • Timothy K Flannery MD
  • Appointments:
  • Office: 714-509-8634
  • Specialty: Endocrinology
  • Board Certified: Pediatrics, Pediatric Endocrinology

At the forefront of innovative pediatric endocrinology research, Dr. Flannery has a special interest in diabetes and growth disorders in children. After spending many years in the clinical setting, Dr. Flannery now dedicates much of his time and efforts to researching growth disorders, pituitary and hyposthenic disorders, and calcium disorders.

Among his investigations, Dr. Flannery’s research has included the effect of growth hormone on cytokines in Crohn’s disease funded by the PSF Tithe Research Award. He was involved in a drug study for Crohn’s disease funded by Novo Nordisk and a Genentech investigator study trial looking at the growth hormone effect on bone density in adult cystic fibrosis.

Dedicated to clinical excellence, Dr. Flannery is board certified in pediatrics and pediatric endocrinology. Prior to joining CHOC he attended medical school at Oral Roberts University School of Medicine in Tulsa, Oklahoma. He served his internship and residency in pediatrics at Loma Linda University Medical Center in California, followed by his residency in pediatric endocrinology at Baylor College of Medicine in Houston, Texas.

Research Focus

Growth disorders, pituitary and hyposthenic disorders, and calcium disorders

Timothy K Flannery MD is on staff at CHOC Hospital in Orange and CHOC Mission Hospital.


CHOC Clinic
1201 W. La Veta Ave. Building: CHOC Clinic
Orange, CA 92868
phone: 888-770-2462
fax: 855-246-2329

CHOC Health Center – Mission Viejo
26691 Plaza, Suite 130
Mission Viejo, CA 92691


  • Medical School
    Oral Roberts University School of Medicine, Tulsa, OK
  • Pediatric Endocrinology Fellowship
    Baylor College of Medicine, Houston, TX
  • Pediatrics Residency
    Loma Linda University Medical Center, Loma Linda, CA

Academic Appointments

  • Assistant Clinical Professor
    University of California, Irvine, School of Medicine
  • Health Science Instructor
    UC Irvine Department of Pediatrics

Administrative Appointments

  • Endocrinology, CHOC Specialists

Honors and Awards

  • Orange County Medical Association’s Physicians of Excellence 2010-2012

Professional Organizations

  • American Academy of Pediatrics
  • Endocrine Society
  • Lawson Wilkins Pediatric Endocrine Society


Flannery, T.K., Kirkland, J.L., Copeland, K.C., Bertuch, A.A., Karaviti, L.P., Brandt, M.L.: Papillary thyroid cancer: a pediatric perspective. Pediatrics 98 (3 Pt 1): 464-6, 1996.

Beckett, P.R., Copeland, K.C., Flannery, T.K., Sherman, L.D., Abrams, S.A.: Combination growth hormone and estrogen increase bone mineralization in girls with Turner syndrome. Pediatric Research 45 (5 Pt 1): 709-13, 1999.


boy height being measured
Growth and Growth Disorders in Children Recorded Conference

Growth and Growth Disorders in Children Conference recorded on March 19, 2016 at CHOC Hospital, Orange County, CA.