St. Margaret's Health - Spring Valley 600 East First Street Spring Valley, IL 61362 (815) 664-5311 St. Margaret's Health - Peru 925 West Street Peru, IL 61354 (815) 223-3300 Get Directions Contact Phone Numbers St. Margaret's Health - Spring Valley St. Margaret's Health - Peru Hospital Operator (815) 664-5311 TTY Number (815) 664-1578.