There will be even more details about her experience when her book, Fierce, comes out on November 14, 2017.
More than 130 women have filed lawsuits against Nassar, saying he sexually abused them as he worked with the US gymnastics team for more than two decades.
"Why are we looking at why didn't the girls speak up (earlier)?" she said in the interview.
Raisman is the second member of the USA women's gymnastics team to allege abuses by Nassar. Why not look at what about the culture?
Raisman, who was also captain of the team for the 2012 Games in London, is the second member of the "Fierce Five" U.S. women's gymnastics team - and third Olympian overall - to allege abuses by Nassar.
He also pleaded guilty in July to federal child pornography charges, after authorities found him in possession of thousands of images, including some with victims as young as six years old. The three-time Olympic gold medalist, 23, said in a new interview with 60 Minutes, airing Sunday, November 12, that she spoke to FBI investigators after serving as the national team captain at the 2016 Olympics in Rio de Janeiro.
Dantzscher also filed a lawsuit against Nassar in California last September as "Jane Doe".More news: ASCO: Alcohol Linked to Several Types of Cancer
"USA Gymnastics is very sorry that any athlete has been harmed", the statement said.
USA Gymnastics CEO Steve Penny resigned in March amid the sexual abuse scandal.
More than 140 women are suing Nassar and his former employer, Michigan State University.
"I am angry", said Raisman, who captained the United States team at the 2012 London Olympics and the 2016 Rio games.
He is scheduled to be sentenced on those charges on Nov 27 in MI. I can't. every time I look at them, every time I see them smiling, I just think.
This includes 22 counts of first-degree criminal sexual conduct, which could lead to a life sentence in prison, according to reports.
Team USA Gymnastics released a lengthy statement about allegations in February, stating in part that "Regarding Dr. Larry Nassar, USA Gymnastics is appalled that anyone would exploit a young athlete or child in the manner alleged. I just want to create change so that they never, ever have to go through this".
They told 60 Minutes USA Gymnastics has since adopted a "safe sport policy" that requires mandatory reporting of suspicions of sexual abuse.