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Type 1 Diabetes Team

Welcome to the Yale Children's Diabetes Program. Below, you can meet our Doctors, Clinical Staff, Researchers, and Fellows. We look forward to meeting you!

William Tamborlane, MD

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William Tamborlane, MD, is Professor and Chief of Pediatric Endocrinology at Yale University School of Medicine, as well as Deputy Program Director of the Yale General Clinical Research Center. Dr. Tamborlane is a graduate of Georgetown University School of Medicine, where he completed his residency in pediatrics before going to Yale as a post-doctoral fellow in endocrinology and metabolism in both pediatrics and medicine. He is the recipient of many awards and honors, including the 2006 JDRF Mary Tyler Moore and S. Robert Levine, M.D. Excellence in Clinical Research Award. He is frequently listed in publications of distinction, including American Men and Women of Science, Who's Who in America, The Best Doctors in America, America's Top Doctors and America's Top Pediatricians. He is a former member of the U.S. Food and Drug Administration's Endocrine Advisory Board and the National Board of Directors of the American Diabetes Association and is a current member of the Clinical Advisory Board of the JDRF and Diabetes Advisory Boards of several companies.

He has published more than 400 original articles, book chapters and reviews in the area of diabetes and metabolic disorders and was the Editor-in-Chief of the Yale Guide to Children's Nutrition, published by Yale University Press in 1997. The focus of Dr. Tamborlane's research has been to advance the treatment of diabetes through patient-oriented research. Major accomplishments have included pioneering studies in the development of insulin-pump therapy, direction of the Yale Center in the DCCT/EDIC study, investigations of diabetes-induced defects in counter-regulatory hormone responses to hypoglycemia, and demonstration of the role of insulin resistance in pediatric metabolic disorders, including obesity and type 2 diabetes. He has served as a consultant to the pharmaceutical industry in the development of clinical trials of new drugs and new devices for the treatment of diabetes.

Current research effort is directed at applying recent advances in insulin pump and glucose sensor technology towards the development of an artificial pancreas. He leads a multidisciplinary team of physicians, advanced practice nurses/CDEs, a physician assistant, a social worker and psychologist, and nutritionists that care for nearly 900 children, adolescents and young adults with type 1 and type 2 diabetes. 

Fun Fact: Dr. Tamborlane is the father of one of the top women's marathoners in the US.

Stuart Weinzimer, MD

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Stuart Weinzimer, MD, is an Associate Professor of Pediatrics at the Yale University School of Medicine and Director of the Pediatric Endocrinology Fellowship Training Program. He earned his bachelor's degree in molecular biochemistry and biochemistry at Yale University, his medical degree at the Albert Einstein College of Medicine, and completed his pediatric residency and pediatric endocrinology fellowship at the Children's Hospital of Philadelphia (CHOP). He stayed on as a faculty member in the Department of Pediatrics at the University of Pennsylvania, where he initiated the use of continuous glucose sensors in the CHOP Diabetes Center for Children and also helped to develop the Pediatric Type 2 Diabetes Program. Dr. Weinzimer returned to Yale in 2002 to focus his research on the applicability of technology, especially continuous glucose sensors and insulin pumps, to the development of automated insulin delivery (artificial pancreas) for children with type 1 diabetes.

In 2008 he published the first study of a closed-loop artificial pancreas in children with diabetes. He is currently the Principal Investigator for several NIH- and JDRF-funded studies of the artificial pancreas and the head of the Yale collaboration in the Diabetes Research in Children Network. Recent awards include Yale's Mae Gailani Faculty Award for outstanding research and clinical care, a JDRF Dream Award along with Drs. William Tamborlane and Robert Sherwin for work on the artificial pancreas, and a JDRF Mary Tyler Moore and S. Robert Levine, M.D. Excellence in Clinical Research Award, along with Dr. Tamborlane and other members of the JDRF Continuous Glucose Monitoring Study Group. He has published over 100 journal articles, reviews, and book chapters, and is a consultant for several medical device companies.

Fun Fact: Dr. Weinzimer plays the piano and guitar and also enjoys ballroom dancing. Once we cure diabetes he will devote himself full-time to his musical career.

Sonia Caprio, MD

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Dr. Caprio is Professor of Pediatrics (Endocrinology) at the Yale University School of Medicine and an internationally recognized authority on patient-oriented research in childhood obesity. Her work uses sophisticated but relatively non-invasive techniques to evaluate novel clinical observations and pathophysiological questions across all age groups. She is the Principal Investigator on three RO1 grants to study obesity and type 2 diabetes in youth. She has earned a Distinguished Clinical Scientist Award from the American Diabetes Association and helda K24 Award for patient-oriented research for two cycles. Since 2002, she has been part of a NIDDK-sponsored multi-center trial for the treatment of Type 2 diabetes in youth. In 2003 she received the Bayer Scholar Award for Research in Diabetes. She is a member of the NIDDK Study Section of Diabetes, Endocrinology and Metabolic Diseases B Subcommittee and the FDA Advisory Endocrinology and Metabolism Committee, and an ad hoc member of the IPOD NIDDK Study Section. Dr. Caprio has served as a mentor to more than 10 individuals, many of whom have gone on to be NIH-funded researchers. She is currently a named mentor for one trainee who has a K23 award. She has pioneered work on insulin resistance, fatty liver disease and the metabolic syndrome in obese youth and has recently entered the field of brain imaging with a new protocol looking at neural functioning of feeding centers in obese youth.

Eda Cengiz, MD

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Eda Cengiz, MD, is an assistant professor at the Yale University School of Medicine. She received her medical degree from Hacettepe University Medical School in Ankara, Turkey. Her pediatric internship was at Cook County Children's Hospital, Rush University Hospital in Chicago and her pediatric residency was at Levine Children's Hospital,, Carolinas Medical Center in Charlotte, North Carolina. Dr. Cengiz's pediatric endocrinology fellowship was completed at W. Alpert Medical School at Brown University where she was the coordinator of the Hasbro Diabetes Electronic Portal and where she was honored with the Dean's Excellence in Teaching Award. Dr. Cengiz joined the Yale staff in 2007 and in addition to seeing patients, she is pursuing research in the condition including investigating the action of new insulin formulations, as well as the action of devices to improve insulin action and the application of these to the artificial pancreas project. Dr. Cengiz received the Clinical & Translational Research Scholars Abstract Award for ACRT/AFMR/SCTS in 2011. She is the principal investigator for various clinical research studies funded by the JDRF and non-profit foundations and is the co-editor for Journal of Pediatric Sciences. Dr. Cengiz has been serving as a member of the "Type 1 Diabetes Aware Project" (organized by the Juvenile Diabetes Association International) for the past three years.

Fun Fact: Dr. Cengiz is a high-tech gadget aficionado and an avid Mozart listener.

Jennifer Sherr MD, PhD

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Jennifer Sherr MD, PhD has followed a career path shaped by her diagnosis with type 1 diabetes in July of 1987. Upon her diagnosis, Jennifer frequently told friends and family she would be a pediatric endocrinologist (once she could figure out how to spell it!). She graduated from a joint BA/MD program through Rutgers University and the University of Medicine and Dentistry of New Jersey Robert Wood Johnson Medical School. Jennifer came to Yale for her pediatric residency training in June of 2003 and given Yale's international reputation for excellence in diabetes care she continued on here for her fellowship in Pediatric Endocrinology. During her fellowship, Jennifer was accepted into the Investigative Medicine Program, a PhD program specifically designed for physicians interested in pursuing research endeavors. She graduated with her PhD in July of 2011 and has since joined our faculty as an Instructor of Pediatrics. Jennifer's research interests include studying the body's response to low blood sugars, continuous glucose monitors,  b-cell preservation studies, and closed loop studies.

Fun Fact: Dr. Jen believes that laughter is the best medicine (next to insulin) and figures once diabetes is cured she will start her comedy career!

Ania M. Jastreboff, MD, PhD

Dr. Ania Jastreboff
Dr. Ania Jastreboff

Ania M. Jastreboff, M.D., Ph.D., is an instructor at Yale University in both the Department of Internal Medicine, Section of Endocrinology and the Department Pediatrics, Section of Pediatric Endocrinology. Dr. Jastreboff completed her undergraduate degree at Bucknell University where she studied Art History. She earned her medical degree at the University of Maryland School of Medicine where she subsequently completed a four year residency program in Internal Medicine and General Pediatrics and served as chief resident. Dr. Jastreboff then came to Yale University where she completed a postdoctoral fellowship in both Pediatric Endocrinology and Adult Endocrinology. During her fellowship, Dr. Jastreboff earned a PhD from the Yale University Graduate School of Arts and Sciences, successfully defending her dissertation this fall. At present, Dr. Jastreboff continues conducting neuroimaging studies utilizing functional MRI (fMRI) to investigate neural responses to food cues and stress in obese, insulin resistant individuals. Clinically, Dr. Jastreboff is helping to establish The Yale Bridge Clinic, a comprehensive clinical program designed with the goal of empowering emerging adults as they transition their care from pediatric to adult diabetes-care providers. To learn more about The Yale Bridge Clinic, please visit our website: [insert link]

Fun Fact: Ania enjoys running half-marathons & 10-milers as well as participating in sprint-Triathlons. During her undergraduate studies, Ania majored in Art History with a minor in music and lived in Vienna, Austria.