In a statement released Friday, she said she filed the lawsuit in the hopes "the legal process will hold them accountable and enable the change that is so desperately needed".
A USA Gymnastics trainer was sometimes present during treatment sessions where Nassar abused young athletes at the Karolyi Ranch, Raisman alleges in the suit, according to NBC News.
MacKay Moore, a former member of the USA women's junior national team, was among those who testified, and she detailed how, starting at age 10, she was befriended by Nassar and groomed for his "special treatment".
Raisman, a six-time Olympic medalist and former team captain, says in the complaint that Nassar sexually abused her at the Karolyi Ranch National Training Center and at competitions both in the United States and overseas, including the London 2012 Summer Olympics.
Team USA denied the allegations, claiming they were unaware of the gymnastic doctor's abuse.
He pleaded guilty to child pornography and sexual assault charges and was sentenced to lengthy prison terms. That was after the disgraced former physician had parted ways with USA Gymnastics following a almost 30-year association, but before he was sacked by Michigan State University, where he spent two decades.
"To this day, Aly Raisman continues to suffer depression, anxiety and fear stemming from her abuse by defendant Nassar, which affects her daily life", the lawsuit said.
Up until now, it has only been females who have accused the imprisoned, former Michigan State University and USA Gymnastics doctor of sexual abuse.
The USOC is conducting an independent review of when former CEO Scott Blackmun and others learned the details about abuse cases at USA Gymnastics and whether they responded appropriately.
America's Olympic athletes are pushing for reforms within US Olympic Committee in the wake of the gymnastics sex abuse scandal.
For its part, USA Gymnastics says it has made several "bold decisions and actions" including closing the National Team Training Center at the Karolyi Ranch and creating an athlete task force to let athletes help shape the organization's operating decisions.