Dr. Charles Euchariste de Medici Sajous, MD: Father of American Endocrinology

All Bones Considered: Laurel Hill Stories #027: Fathers – And Mothers – of American Medicine, Part 2, Section 1

Dr. Charles Euchariste de Medici Sajous was the last of the Belgian branch of the de Medici family.  He became an accomplished otolaryngologist, but switched gears in mid-career to master the up-and-coming science of "secretions", later called endocrinology.