CHOC Docs :: Provider Profile

Timothy K Flannery, MD




Board Certified:
Pediatrics, Pediatric Endocrinology

Research Focus:
Growth disorders, pituitary and hyposthenic disorders, and calcium disorders

Dr. Flannery is on staff at CHOC Children's Hospital & CHOC Children's at Mission Hospital

CHOC Children's Clinic
1201 W. La Veta Ave.
Building: CHOC Clinic
Orange, CA 92868
phone: 888-770-2462
fax: 855-246-2329
map & directions

CHOC Children's Health Center - Mission Viejo
26691 Plaza
Suite 130
Mission Viejo, CA 92691
map & directions

Physician / Researcher Bio

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 Children’s 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.

Administrative Appointments

  • Endocrinology, CHOC Children's Specialists

Academic Appointments

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


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

Board Certifications

  • Pediatrics
    American Board of Pediatrics
  • Pediatric Endocrinology
    American Board of Pediatrics

Honors and Awards

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

Professional Organizations

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

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UC Irvine

CHOC Children's is affiliated with the UC Irvine School of Medicine