The lawsuit contends that the U.S. Olympic Committee (USOC), USA Gymnastics and former executives of the sport's governing body had the authority and mandate to discipline Nassar but never intervened.
Frustrated by what she considers a lack of progress, the six-time Olympic medalist is hoping she can get some answers in court.
In her lawsuit, Raisman says that the USOC and USAG "knew or should have known" about Nassar's abuse. In January, he was sentenced to between 40 and 175 years in state prison on seven counts of sexual assault.
At the time, the USOC denied knowing about Dr. Nassar's predatory behavior until 2016. Nassar is in prison for molesting gymnasts and others under the guise of treatment and for possessing child pornography.
After being fired from USA Gymnastics in 2015, Larry Nassar was still practicing at MSU until 2016.
Raisman also said she still experiences depression, anxiety, and fear to this day as a result of Nassar's abuse.
Raisman joins a list of more than 100 civil actions filed against Nassar and USA Gymnastics.
Around 200 women, including Olympic gold medal-winning gymnasts Aly Raisman and Jordyn Wieber, gave courtroom statements at the sentencing hearings about Nassar's abuse, leading to the resignation of the USA Gymnastics' board.
According to the amended lawsuit filed this week, Nassar discussed the fact that he was exposing Moore's genitalia as he did it with a female minor who had arrived at Nassar's home to be treated for an injury of her own.
In the new complaint, Moore, 18, a University of MI gymnast, charged that he was seeking treatment for a shoulder injury at 16 in 2016 when Nassar allegedly invited him to his home basement, The Daily Beast reported. More than 250 told their stories during sentencing hearings in two MI counties.
Attorney David Mittleman represents 90 of the 256 plaintiffs already suing USA Gymnastics in federal court in MI.
USOC Chairman Larry Probst said new leadership is needed "so that we can immediately address the urgent initiatives ahead of us".
"I refuse to wait any longer for these organizations to do the right thing", she continued.
The U.S. Olympic Committee, USA gymnastics and Michigan State University have not responded to these lawsuits.