I have scammers calling my work?

About a month ago a scammer calling from New York called my work and told me I was having charges pressed against me for having a pay day loan that has never been payed for and that they were going to come to my work and have me arrested and I would be fired if I didn't give them every bit of my information and pay them that day. I didn't give them any information, I knew they were a scam, so I told them so and told them not to call my place of business again. I looked up their number and sure enough there were a bunch of complaints against that number for the same issue. I haven't heard anything from them again, but today I got another call to my work, from California, for the same type of thing, not all the same information but along the same lines, looked up the number again, and sure enough it is a scamming number again. Obviously some how my information got put out on the internet, the only thing I can think of that could ociate my job with my name is when I was applying for student loans online and they asked for my work information. In any case, how can I get my work number off of the internet or unattached to my name. I don't care if these people call my cell phone, but my work is out of the question. If I were to put my work's phone number on the do no call list would these people not call, is it the same thing as a telemarketer? I need some help... this is unacceptable.