The Jag - Fall 2025

The Jag - Fall 2025

The Jag, Wellington's biannual alumni magazine, is published by Wellington for all members of its community. 

We hope you enjoy our feature story on Dr. Jon Koff ’89, a physician-scientist whose career spans patient care, research, and global collaboration. From his early days laying out pages for The Wellingtonian to his leadership at Yale University, Koff’s work reflects a lifelong curiosity and a commitment to improving lives — one patient, one discovery, and one question at a time.