Dr. Hans Tomas Bjornsson is an assistant professor of pediatrics and genetics at the Johns Hopkins University School of Medicine. His areas of clinical expertise include clinical genetics and pediatrics. He is a faculty member in the McKusick-Nathans Institute of Genetic Medicine and serves as the director of the Epigenetic and Chromatin Clinic and assistant program director of Clinical Genetics.

Dr. Bjornsson’s research focuses on exploring the epigenomic impact of various Mendelian disorders of the epigenetic machinery. He is also interested in epigenetic-based therapeutic development with focus on developing therapies for Mendelian disorders of the histone machinery and imprinting disorders.