Allstate is going on the offensive against fraud in no-fault insurance claims in New Jersey, suing eight medical providers who the company says allowed unlicensed, unsupervised personnel to treat patients and submitted $4.8 million in false and misleading claims.

Named in the suit, filed Tuesday in Morris County Superior Court, are a neurologist, a chiropractor, five chiropractic centers and the man who ran three of them: George Taveras, who is not a licensed chiropractor.