Dr. Williams joined SomaLogic in 2009 as Chief Medical Officer. Dr. Williams trained as a physician at Charing Cross and Westminster medical school, University of London, and following his internships returned to the same institution for a Ph.D. in medicine and physiology. He subsequently performed three years residency in diagnostic imaging at the University of Newcastle Upon Tyne. He joined Pfizer in the UK in 1989 in Experimental Medicine, and worked on a variety of programs including asthma, irritable bowel syndrome, migraine [eletriptan], depression [sertraline] and urinary incontinence [darifenacin]. He moved to the USA in 1993, still at Pfizer, and worked in inflammatory bowel disease, stroke, psychosis [ziprasidone] and head-injury. He created the Clinical Technology Group in 1997, which became a worldwide function on research sites with the objective of validating clinical biomarkers and measurements, and was made VP in 2006. In process initiatives, he led orco-led initiatives in diagnostics, biomarkers, quality of drug candidates and guidelines for development teams to make the decision to start phase III.