Dr. Jeffrey Gregg is senior director of Clinical Pathology and Molecular Diagnostics and professor of Pathology at the University of California Davis School of Medicine and UC Davis Health. He is director of the UC Davis Comprehensive Cancer Center Genomics Shared Resource where he uses next generation sequencing and genomic technologies for analysis of tumors and biomarker discovery. He is a member of the UC Davis Molecular Tumor Board and participates in other Molecular Tumor Boards throughout the United States. His clinical and research focus is on developing liquid biopsy as a high-value clinical tool for cancer screening, diagnosis, and surveillance.