Have you had difficulties finding a referring provider's direct address? You are not alone! The NPPES system now supports updating your providers' NPI registration with their direct address. This will contribute to a national directory that should improve the use of direct messaging. While there is no requirement in MIPS to update your registration at the time of publication, CMS will post a list of providers without direct messaging capabilities in the second half of this year.
To update your addresses, you will need an I&A account. This account is used for the NPPES and PECOS systems. Your billing or credentialing staff should have this.