Dr. Targan is one of the founding members of Precision IBD, the predecessor of Prometheus Biosciences and is currently the Director of the Inflammatory Bowel and Immunobiology Research Institute at Cedars-Sinai Medical Center. Dr. Targan began his career at UCLA School of Medicine in 1978 and then moved his laboratories and practice in 1992 to establish the IBD Center at Cedars-Sinai. Dr. Targan has focused on identifying drivers of IBD pathogenesis, which in the context of such a genetically heterogeneous disease, involves numerous biologic and molecular pathways and comprises complex relationships between the intestinal microenvironment and the immune response. With over four decades of experience in treating IBD patients and over 300 peer-reviewed articles, Dr. Targan is a recognized leader in inflammatory bowel diseases. He was previously a co-founder of Santarus and Prometheus Laboratories.