is an Associate Scientific Director in the R&D Mass Spectrometry department at Quest Diagnostics-Nichols Institute in San Juan Capistrano, California. Darren is primarily responsible for the development of high-throughput quantitative mass spectrometry-based proteomic assays for the clinical laboratory, with an emphasis on Alzheimer’s disease and other neurodegenerative disorders. Prior to joining Quest Diagnostics, Darren was a member of the UC Davis Proteomics Core where he gained extensive experience in protein sample preparation and high-resolution mass spectrometry.