Pursuant to the Health Insurance Portability and Accountability Act (HIPAA), old legacy numbers will not be accepted on any electronic claims after May 23 - claims will only be accepted with an NPI number. It is important to note that this deadline applies to all payers both public and commercial.

Physicians are strongly urged to test sending their claims with just their NPI as soon as possible so as to avert claims processing and cash flow interruptions that could occur after May 23. Physicians should also ensure all of their information in the NPI database is up-to-date as this can affect a payer’s ability to identify a physician and thus pay their claims. Physicians can make changes/updates to their information by visiting https://nppes.cms.hhs.gov/NPPES or calling 800-465-3203.