A federal lawsuit accuses UPMC of holding a monopoly over workers, and now DOJ has filed a letter of interest in this case. The class action lawsuit was brought by a former nurse in Erie. It accused UPMC of acquiring 28 healthcare systems and becoming not only a monopoly for patients but for workers as well. It also accuses UPMC of closing down hospitals, having non-compete clauses and allegedly blacklisting former employees from getting other job.