He completed his undergraduate training at the Juárez Institute, after which he moved to Mexico City, where he taught at the Escuela Nacional Preparatoria.

Immediately after, Peschard began his course of study in dentistry at the National Autonomous University of Mexico.

In his dentistry practice, he was regionally famous for protesting gold fillings and introducing porcelain substitutes in 1965.

He gained a reputation as a respectful and empathetic doctor and reportedly would call into people's homes to check on their pain levels.

[1] Peschard was instrumental in the creation of the School of Dentistry at the Universidad Juárez del Estado de Durango.