Dr. Ronald R. Castonguay is a board-certified orthopedic surgeon specializing in general orthopedic surgery. He earned his medical degree from the University of Toronto Faculty of Medicine in 1990 and completed his residency at McGill University in 1995. Dr. Castonguay has been practicing since 1996 and is affiliated with Saint Agnes Medical Center in Fresno, CA. He is fluent in English and French.