Ian M. Burr Division of Endocrinology and Diabetes
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Pediatric Endocrinology Fellowship
Current Fellows
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Third-Year Fellows

Yaa Kumah-Crystal, M.D.
Yaa was raised in Baltimore, Maryland and attended college at Johns Hopkins University. She came to Nashville to attend medical school at Vanderbilt in 2003 and then stayed on for her pediatric residency at Monroe Carell Jr. Children's Hospital at Vanderbilt. Yaa is pleased to be doing a fellowship in pediatric endocrinology at Vanderbilt as well. Yaa acquired an interest in Type 1 diabetes when her childhood friend, and now her husband, developed diabetes in high school. She hopes to combine an interest in disease management of diabetes mellitus type 1 with her interest in bioinformatics to develop tools and techniques to improve patient compliance and outcomes in both inpatient and outpatient settings. Yaa is excited to be working with a wonderful and caring group of individuals and to be mentored by the best.

Justin Gregory, M.D.
Justin was born and raised in Kingsport, Tennessee, where he developed a strong love for the people and culture of his state. He attended the U.S. Air Force Academy with the dream of becoming an F-15 fighter pilot. At the end of his second year, he developed Type 1 diabetes, ending his Air Force career, but sparking a life-long interest in caring for individuals dealing with the same medical condition. He transferred to the University of Tennessee where he graduated magna cum laude in mechanical engineering. He then moved across the state to Memphis, where he attended medical school at the University of Tennessee Health Science Center. After medical school, he stayed in Memphis to complete pediatrics residency at Le Bonheur Children's Hospital. He is thrilled to be working in Nashville at Vanderbilt as a fellow in pediatric endocrinology. His research interests include exercised-induced hypoglycemia and the development of the artificial pancreas.

First-Year Fellows

Karishma Datye, M.D.
Karishma was born in Ann Arbor, Michigan and raised in sunny Albuquerque, New Mexico. She studied neurobiology at the University of California, Irvine, then completed medical school in her hometown of Albuquerque, at the University of New Mexico. Karishma decided to move to the South for pediatric residency and completed her pediatric residency at the Monroe Carell Jr. Children's Hospital at Vanderbilt in the summer of 2013. During residency she became interested in pediatric endocrinology, and is thrilled to be starting fellowship at Vanderbilt in 2013. Karishma is interested in both diabetes and endocrinology. She is excited to have the opportunity to further explore her research interests during fellowship.

Melissa Garganta, M.D.
Melissa was born in Wilmington, North Carolina, grew up in Clarksville, Tennessee, and now calls Greenville, South Carolina home. She attended the University of North Carolina at Wilmington for undergraduate studies, University of South Carolina for medical school, and completed her residency in Greenville. She was also chief resident for a year after graduation. Melissa developed an interested in endocrinology while growing up with a mom with Type 1 diabetes. She has a strong interest in global health shaped by mission trips to Guatemala and Nicaragua. Her research interests include glucose control during exercise in adolescents and hormone deficiencies in cancer survivors.


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