Where do I get my Odometer replaced/fixed?

The other day I filled up my gas tank and reset my trip mileage, then the next day I realized the odometer wasn't turning. I've been clocking my mileage with my GPS but I would like for the odometer to work again and I've been searching where to get it fixed but all I get is how to fix it yourself which I don't think I could do, so I need some help in finding someone who could take a look and tell me what needs to be done. By the way, it is a 2002 Ford Taurus SE if that helps. Thanks!