Stephen Mason came to Greenleaf following an accomplished and diverse career that includes time in regulated industry, at the Food and Drug Administration (FDA), and on Capitol Hill.

Before joining Greenleaf, Stephen served as Director of Regulatory Affairs for Amgen. In this role, Stephen led the company’s US regulatory policy function, which included developing and implementing strategies for corporate engagement with regional and global regulatory agencies.

Stephen joined Amgen following 3 years as Assistant Commissioner of Legislation at FDA, where he managed all legislative and policy activities affecting the agency and Congress, including congressional oversight activities. Additionally, Stephen served as the primary liaison for FDA in its interactions with Congress, the White House, other federal departments, and state governments.

Stephen’s career also includes a role as Director of Government Relations at the Generic Pharmaceutical Association (GPhA). While serving at GPhA, Stephen was a leader in advocating for the association’s priorities in Congress and the Administration. He was instrumental in the development of generic drug policy issues, as well as in organizing coalition and outreach efforts surrounding federal policy issues.

Before joining GPhA, Stephen held several other positions, including Legislative Aide to Congressman John Ensign (R-NV). In this position, he directed legislative issue management and fostered policy development on an array of issues, including healthcare.

Stephen earned a B.A. in Business Administration-Finance at Oakland University in Rochester, MI.