Theru A. Sivakumaran, PhD, FACMG, is the director of the section of Clinical Genomics in the Division of Pathology and Laboratory Medicine at Phoenix Children's. Specializing in rare genetic diseases and cancer, he uses genetic and genomic testing to diagnose disease by identifying alterations in DNA. This helps guide treatment and clinical management.

Dr. Sivakumaran has an extensive background in genetic testing and validating clinical genomic tests. Previously, Dr. Sivakumaran was the director of clinical molecular and genomic pathology in the Department of Pathology and Laboratory Medicine. He was also the founding director of the oncogenomic shared resources facility and the UK HealthCare Genomics Core Laboratory at the University of Kentucky College of Medicine.

After receiving his doctoral degree from All India Institute of Medical Sciences, Dr. Sivakumaran completed a fellowship in clinical molecular genetics at Harvard Medical School. He's a member of the American College of Medical Genetics and Genomics, the Association for Molecular Pathology and the International Agency Against Cancer.

Dr. Sivakumaran has contributed to advancing his field through research, publishing peer-reviewed articles in professional journals, including Nature Genetics, the American Journal of Human Genetics, and other publications.