Published: Apr 04, 2013 10:57 AM EDT

GAINESVILLE, Fla. (AP) - The University of Florida has notified almost 15,000 patients of a medical clinic that they may have fallen victim to identity theft.
    
Letters were sent Tuesday to 14,339 patients of UF & Shands Family Medicine at Main following the arrest of a man who once worked at the clinic.
    
The Gainesville Sun (http://bit.ly/12kBv0m ) reports 25-year-old Arthur Thomas was arrested Tuesday following an investigation that began in October.
    
A Jacksonville Sheriff's Office reports says Thomas was stopped for speeding and officers found a duffel bag with about 1,600 personal identities on a computer-generated appointment information sheet. Officials allege that he acquired insurance information from patients and may have shared it with a third party.
    
The university says patients at the practice between March 2009 and October 2012 may be a victim.
    
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Information from: The Gainesville (Fla.) Sun, http://www.gainesvillesun.com

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