Dallas County spokeswoman Kim Leach says 37-year-old Cristal Taylor was transported Wednesday to Jefferson County in southeast Texas. That's where a 2006 indictment alleges Taylor didn't pay for dental services ranging from $1,500 to $20,000.
Leach says Taylor's bond was raised from $20,000 to $50,000 at the request of Jefferson County officials. Leach said she had no record of an attorney for Taylor.
Taylor's arrest May 6 also was for a probation violation in Missouri. A prosecutor there says Taylor pleaded guilty in 1999 to two counts of forgery and two counts of felony stealing.
Sources close to the situation have confirmed to ESPN.com the warrants were discovered when Nowitzki's team of legal advisers hired a private investigator to research Taylor's background, amid growing concern among those closest to the player inside and outside the Mavericks' organization. Two Dallas television stations (KXTA-TV and WFAA-TV) have reported Taylor to be Nowitzki's fiancée.
Nowitzki didn't want to discuss the situation before the Maverick's shootaround Wednesday in Denver ahead of Game 5.
"Basketball business is public business. My private life is private business. This is private business," said Nowitzki, whose team trails the Nuggets 3-1 in the series.
ESPN.com NBA writer Marc Stein and The Associated Press contributed to this report.