Johns Hopkins All Children's Hospital

Meet Our Genetics Team

The Genetics team at Johns Hopkins All Children's Hospital includes a board-certified clinical geneticist and board-certified genetic counselors.

Melissa Crenshaw, M.D. Genetics

Dr. Crenshaw is the medical director for the Clinical Genetics Program at Johns Hopkins All Children’s Hospital and also serves as an assistant professor with Johns Hopkins Medicine. Her research interests include congenital heart defects, chromosome abnormalities and Turner Syndrome. She has additional expertise in the genetics of congenital heart disease and connective tissue disorders. Dr. Crenshaw is board certified in pediatrics and clinical genetics.
View Melissa’s Bio

L. Jane Gillis, M.D. Genetics

Dr. Gillis is a physician in the Genetics Program at Johns Hopkins All Children’s Hospital. She joined the medical staff in 2019. She was previously director of medical genetics and metabolism at Valley Children’s Healthcare in Madera, California. She has authored a number of peer-reviewed publications in clinical genetics and metabolism, and has been invited to give presentations nationally and internationally.
View L. Jane’s Bio

Troy Becker, M.S., CGC

Troy Becker, M.S., CGC ABGC Certified Genetic Counselor



Jennifer Hargett, M.S., CGC

Jennifer Hargett, M.S., CGC ABGC Certified Genetic Counselor


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