Claims submitted incorrectly and without a registered NPI after May 23, 2008, will reject. You must register your NPI with IBC prior to submitting claims. Register your NPI online with IBC now.
Each claim must pass an NPI check-digit validation to ensure that it has a valid NPI. To date, many claims are not passing this check-digit validation. Claims that fail the check-digit validation after May 23, 2008, will reject. The most common reasons why claims are not passing the NPI check-digit validation are:
As of May 23, 2008, in accordance with the CMS mandate, providers must use the NPI as the primary identifier on the claim, and IBC will reject claims with invalid NPIs on or after this date.