looked into it some more...looks like it's a collection agency...
http://www.bbb.org/central-western-massachusetts/business-reviews/collection-agencies/national-processing-center-in-springfield-ma-290582
however, if it's a 3rd party, they've violated laws... most likely, they're trying to scare debtors into contacting them in order to not 'loose' the statute.(the time limits in which it can be reported. If you call before it's up, it restarts)
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Got the same message (with different cause/case #) wish I could give more info... anyone actually gotten ahold of someone?
Caller: National Processing Center