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The Medicare Administrative Contractor (MAC) for Jurisdictions H and L, Novitas, strongly encourages providers to use our free online portal, Novitasphere, to submit redeterminations and make claim changes. These features save providers a great deal of time because they are quick and simple to use. The Claim Correction tool is one of Novitasphere's most used features. This is how Part B clients can send Novitas their clerical error reopenings. The steps are as easy as 1-2-3: Go into Novitasphere, make the necessary corrections, and submit! Watch this brief instructional video to see how simple it is: