The first of the cheating reports came just hours after Woods' car accident, when The National Enquirer named Uchitel, 34, a Las Vegas nightclub promoter.
Uchitel has denied rumors of an affair. She employed Gloria Allred, a California attorney famous for her high-profile clients.
"Not a word of it is true," Uchitel told the New York Post, about the allegations. "It's the most ridiculous story. It's like they are asking me to comment if there are aliens on Earth."
Uchitel began working nightclubs following her fiance's death on 9/11.
A call to Mark Nejame, a lawyer for Woods, wasn't returned.