John Fox, MD MHA, is current the Senior Medical Direct of the Americas, Market Access, for Illumina, where he is accountable for working with payers and employers to expand access to genomic testing and personalized medicine.

He served as the Associate Chief Medical Officer at Priority Health, a provider-sponsored health plan with over 1,200,00 members from June 2000 through May 2019. He was responsible for medical and pharmaceutical technology assessment, use of medical resources, case management, and physician pay-for-performance programs. He was also responsible for development of new programs, including shared decision making, digital therapeutics, advanced care planning, integrated specialty pharmacy program, surgical optimization initiatives, value-based benefit designs and contracts, oncology medical home programs, and personalized genomic medicine initiatives.

In June 2019 he became the Vice President of Clinical Transformation of Spectrum Health Systems, the parent company for Priority Health, and the Executive Medical Director for the West Michigan ACO, a clinical collaboration between Spectrum Health providers and Answer Health, the largest independent physicians organization in west Michigan.