Nassar already faced a lifetime behind bars for two prior sentences after pleading guilty to sexually assaulting women and girls in his role as a high-profile sports medicine doctor at USA Gymnastics and at a Michigan State University (MSU) clinic.
Prosecutor Angela Povilaitis speaks at the sentencing hearing for Larry Nassar, a former team USA Gymnastics doctor who pleaded guilty in November 2017 to sexual assault charges, in Lansing, Michigan, Jan. 24, 2018.
Nassar has been accused of sexually abusing 265 women throughout his career.
Nassar issued an apology to his victims in court, but the judge did not seem to be particularly moved by his words, telling him "I am not convinced that you understand what you did was wrong".
The incident occurred during the third and final sentencing hearing for Nassar on sexual abuse charges.
Lou Anna Simon resigned as the university's president on January 24 and athletic director Mark Hollis followed two days later.
This week, the police department in Meridian, Michigan, apologised publicly to one victim for declining to press charges against Nassar in 2004 when she reported that he abused her.
Over the past three weeks of court hearings, some 200 women, girls and victims' family members confronted Nassar and gave wrenching accounts of his abuse and its lasting damage. The Ingham and Eaton County sentences will be served concurrently.
Nassar has admitted to using his bare hands to penetrate girls under the guise of medical treatment at the gymnastics club Twistars. The judge said the abuse "spans the country and the world".
Besides the sentence delivered today in Eaton County, Nassar was also sentenced last month to 40 to 175 years for similar conduct in another county. "We must all start by believing victims when they tell, regardless of who the adult is". "We must stop blaming, stop blaming victims, stop blaming parents".
Larry Nassar sits with his attorney Matt Newburg as he is sentenced by Judge Janice Cunningham for three counts of criminal sexual assault.
Athletes were drawn to Nassar for treatment due to his reputation as the go-to doctor for Olympic gymnasts.
The widening fallout from the case has so far seen the resignations of Michigan State's president and its athletic director as well as USA Gymnastic's entire board.