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Dedicated to caring for children and adolescents with acute and chronic endocrine and metabolic disorders.

The Division of Pediatric Endocrinology and Diabetes provides diagnostic consultation and advanced therapies for children and adolescents with endocrine and metabolic diseases. Our goal is to provide personalized care of the highest quality to all children and adolescents seeking our advice. To that end, we take pride in our unique multidisciplinary family-centered services and education programs and close collaborations with referring physicians and other caregivers.

The Duke Division of Endocrinology and Diabetes was the first to use insulin pumps in infants and toddlers with type 1 diabetes and the first to demonstrate the effectiveness of drug therapy in the prevention of type 2 diabetes in obese adolescents. In addition, we have taken leading roles in the advancement of testing for celiac disease in type 1 diabetic children and for screening for hypercholesterolemia in all children. 

Our physicians have served as members of various national and international consensus committees for the management of pediatric endocrine disorders and have played leading roles in the International Pediatric Endocrine Society. Two of our physicians have been awarded membership in US News/Castle Connolly’s America’s Top Doctors, which include only 37 pediatric endocrinologists/diabetologists nationwide. Our program is ranked among the nation’s best by US News and World Report, and our trainees have gone on to lead major clinical divisions throughout the United States.    


The Duke Pediatric Endocrine and Diabetes Team provides care for children and adolescents with a wide array of hormonal and metabolic disorders, including:

  • short stature and growth hormone deficiency;
  • types 1 and 2 diabetes mellitus;
  • insulin resistance;
  • diabetes insipidus;
  • hypothyroidism and hyperthyroidism;
  • delayed and precocious puberty;
  • hyperprolactinemia
  • Turner’s, Noonan’s, and Russell Silver syndromes;
  • Cushing’s syndrome;
  • Prader Willi syndrome;
  • menstrual irregularity and polycystic ovary syndrome;
  • adrenal insufficiency and Cushing’s syndrome;
  • osteoporosis;
  • osteogenesis imperfecta and Vitamin D deficiency;
  • thyroid nodules;
  • pheochromocytoma and endocrine tumors;
  • hypercholesterolemia and hypertriglyceridemia.
We have extensive experience in the management of children and teenagers with brain tumors affecting pituitary function. The Division also maintains distinct Insulin Resistance and Types 1 and 2 Diabetes Clinics, as well as a Comprehensive Lipid Clinic for children with hypercholesterolemia and hypertriglyceridemia.

Physicians and Staff


Name Areas of Special Interest
Deanna W. Adkins, MD General pediatric endocrinology, including disorders of growth, adrenal glands, thyroid, calcium and phosphorus metabolism, hypothalamus, pituitary, sexual and pubertal development, diabetes mellitus
Robert W. Benjamin, MD Type 1 diabetes, disorders of calcium and phosphorus, congenital adrenal hyperplasia
Michael S. Freemark, MD Pediatric endocrinology; hypothalamic-pituitary dysfunction; disorders of growth, thyroid function, and sexual development; diabetes mellitus; insulin resistance; celiac disease in diabetic children, hyperlipidemia
Pinar Gumus Balikcioglu, MD Pediatric insulin resistance and type 2 diabetes; Cushing syndrome; thyroid disorders in children; disorders of growth; disorders of puberty
Krystal A. Irizarry, MD
Nancie J. MacIver, MD, PhD Short stature, puberty, polycystic ovarian syndrome, thyroid disease


Nurse Clinicians

Amanda Lewis, MSN, CPNP Care of pediatric patients with endocrinology disorders: insulin resistance, obesity, short stature, constitutional delay, thyroid disorders, precocious puberty, pre-diabetes and type 2 diabetes

Nutrition/Diabetes Education

Mona C. Griffis, RD, LDN, CDE Nutritional counseling for diabetic and insulin resistance patients             
Virginia Purrington, RN, BSN, CDE Primary educator for parents and children with diabetes

Social Work

Angela Annas, MEd, MSW, LCSW Counseling related to coping and adjustment to diabetes             

Administrative Staff

Daniel Meister Fellowship Program Coordinator                                              
Scott Mofield Division Operations Manager
Christy Ragan Senior Business Manager
Wendy Roberson Staff Assistant
Amber Spruill Staff Assistant

Clinic Hours & Locations

Duke Children's Hospital & Health Center
2301 Erwin Road
Durham, NC 27710
Tel: 919-684-3772, option 2
Fax: 919-684-8613

Hours: Monday to Friday, 8:30 am - 5:00 pm

Duke Children’s and WakeMed Children's Specialty Services
23 Sunnybrook Road, Suite 200
Raleigh, NC 27610
Tel: 919-862-1200
Hours: Monday - Friday, 8:00 am - 5:00 pm

Lenox Baker Children's Hospital
3000 Erwin Road
Durham, NC 27705
Tel: 919-684-6669

Hours: Daily, 8:00 am - 5:00 pm

Appointments and Contact Information

To serve our patients and referring physicians, faculty physicians covering pediatric endocrinology are always on call to answer questions and provide consultation.

  • For ALL appointments, please call 919-684-3772, option 2.   
  • For all urgent calls 24 hours a day, seven days a week, please call 919-684-8111 and ask the operator to page 970-0716, the pediatric endocrinology/diabetes physician on call.
  • For physicians requesting consultations or making referrals, please call 919-684-3772, option 2 or the Duke Consultation and Referral Center at 800-MED-DUKE (800-633-3853).
  • For the diabetes nurse call-in hour, please call 919-684-6645, Monday to Friday 7:30am - 8:30am.