He also reportedly stored on his work computer a pornographic video, nude photos of women, and a clip of Nassar performing a “treatment” on a younger patient.
Mr Strampel solicited pornographic images of women who appear to have been MSU students, according to Michigan Live.
In February, MSU fired Mr Strampel for failing to enact strict protocols on Nassar when survivor Amanda Thomashow accused Nassar of abuse, according to the Detroit Free Press.
“William Strampel did not act with the level of professionalism we expect from individuals who hold senior leadership positions, particularly in a position that involves student and patient safety,” said university interim president John Engler in a statement.
After Ms Thomashow’s complaint against Nassar in 2014, Mr Strampel allegedly restored the doctor’s position at the school, during which time he was able to molest 20 more women before coming to trial.
Every member of the USA Gymnastics board quit following Nassar’s widely publicised trial where hundreds of women came forward with personal testimonies about his abuse.
A lawyer representing more than 150 Nassar survivors praised the Michigan attorney general for the arrest of Mr Strampel.
“Our clients are encouraged by the Attorney General’s action today,” attorney John Manly said in a statement, according to the Detroit Free Press.
“It demonstrates that he is serious about investigating the systemic misconduct at MSU that led to the largest child sex abuse scandal in history and holding the responsible parties accountable.”