Stephen A. Williams

Chief Medical Officer

Stephen Williams, M.D., Ph.D. is the Chief Medical Officer at SomaLogic and is responsible for Clinical R&D, Medical Affairs and Regulatory and Quality. He oversees clinical application of the SomaScan® Platform and has also had roles in launching the life sciences commercial business, assay development and bioinformatics.

Prior to SomaLogic, Dr. Williams co-founded the pharma consultancy Decisionability, LLC and authored the book “Decisionability: The skill to make your decisions productive, practical and painless.” Previously, he worked at Pfizer, Inc., initially in experimental medicine and later as the Vice President and Worldwide Head of Clinical Technology. He was also on the National Advisory Council for Biomedical Imaging and Bioengineering at the U.S. National Institutes of Health. He helped launch the Alzheimer’s Disease Neuroimaging (ADNI) study and form the FDA-FNIH-PhRMA biomarker consortium. He led or co-led the PhRMA position papers on “proof of concept,” surrogate endpoints and evidentiary standards for biomarkers and diagnostics.  

Dr. Williams has degrees in physiology, medicine and surgery, and received his doctorate in medicine and physiology from Charing Cross and Westminster Medical School (now a part of Imperial College, London). He also obtained training in diagnostic imaging at the University of Newcastle Upon Tyne.