Ari J. Wassner is Director of the Endocrinology Fellowship Training Program at Boston Children’s Hospital. He earned his MD from Harvard Medical School and completed residency in Pediatrics at Boston Children’s Hospital, where he also served as Chief Resident. He completed fellowship in Pediatric Endocrinology at Boston Children’s Hospital. Dr. Wassner is a member of the American Thyroid Association Trainees and Career Advancement Committee, the Boston Children’s Hospital Graduate Medical Committee, and the teaching Academies at both Boston Children’s Hospital and Harvard Medical School. In addition to resident and fellow education, he is participates in preclinical medical education and curriculum development at Harvard Medical School, for which he received the 2017 Masland Award for Excellence in Teaching. Dr. Wassner is also Co-Director of the Thyroid Center at Boston Children’s Hospital. His basic research has investigated the role of thyroid hormone metabolism in modulating local and systemic thyroid hormone signaling in disease states including heart failure and liver injury. In addition to practicing general pediatric endocrinology, Dr. Wassner’s clinical and research interest is primarily in pediatric thyroid disease, with a particular focus on congenital hypothyroidism and on thyroid neoplasia in children, and he conducts clinical research in these areas.

Melissa K. Crocker is Associate Director of the Endocrinology Fellowship Training Program at Boston Children’s Hospital. She earned her MD from Tufts University School of Medicine and completed residency training in Pediatrics at Children’s National Medical Center where she received teaching awards from the medical students. She completed fellowship in Pediatric Endocrinology at the National Institutes of Health, where she served as the fellow representative to the faculty. Dr. Crocker is Director of the Type 2 Diabetes Program at Boston Children’s Hospital. In addition to practicing general pediatric endocrinology, Dr. Crocker’s clinical interests lie in pediatric obesity and diabetes. She conducts clinical research on pharmaceutical treatments for type 2 diabetes and has investigated the relationship of obesity to puberty and growth. She has earned teaching awards from medical students and enjoys precepting fellows and residents in clinic and on the wards.

Christine E. Cherella is Associate Director of the Endocrinology Fellowship Training Program at Boston Children’s Hospital. She earned her MD from Northwestern University Feinberg School of Medicine and completed residency training in Pediatrics in the Boston Combined Residency Program, followed by fellowship in Pediatric Endocrinology at Boston Children’s Hospital. Dr. Cherella is also Assistant Clinical Chief for Productivity, Quality, Reliability and Safety for the Division of Endocrinology, ​responsible for optimizing clinical care, improving efficiency, maintaining safe and dependable practices, and reviewing endocrine safety events. She holds Lean Six Sigma Green Belt certification and serves on the Department of Pediatrics Safety Collaborative. Dr. Cherella’s research focuses on pediatric thyroid nodules and thyroid cancer, and her clinical interest include management of pediatric thyroid disease as well as inpatient glycemic management. She enjoys precepting medical students, residents and fellows both in clinic and on the wards.​

Lynne Mills-Fawzy is the Program Coordinator for the Endocrinology Fellowship Training Program at Boston Children’s Hospital. She started her career in medical education in the Department of Pediatrics as part of the Boston Combined Residency Program at Boston Children’s Hospital. She is involved in the Graduate Medical Education Office and is a member of the GME Wellness Sub-committee. Lynne has worked at Boston Children’s Hospital for over ten years.