Jason Mast is a general assignment reporter at STAT focused on the science behind new medicines and the systems and people that decide whether that science ever reaches patients. He joined STAT in 2022, after two years at Endpoints News. You can reach Jason on Signal at JasonMast.05.

Mast briefed National Press Foundation fellows in November 2025: A Masterclass in Rare Disease Reporting. Check out the Rare Disease Reporting Guide.