HISP, or Health Information Service Provider, is an email service provider that follows Direct ProjectThe Direct Project was launched by the ONC within Health and Human Services (HHS) on March 1, 2010. It was initially called NHIN Direct. The object of the Direct Project is to replace the use of faxes, phones, and paper transactions with a simple and... More standards and provides a mechanism to grant users a Direct email address. The HISP provides the framework to secure messages and define a circle of trust for secure communications.
