A Health Information Service Providers Proxy (HISP Proxy) for Electronic Medical Records (EMR)-focused and Non-EMR focused environments for healthcare organizations (HCOs) to manage their Direct Secure Messaging (DSM) and HISP communications is disclosed. The HISP Proxy includes a DSM message bus located between HCO end-users and a HISP to intercept inbound messages and outbound messages and then to pass the messages through, an Accounting Service, a Privacy Policy Service, a Document Distribution Service, a Message Disposition Notifications (MDN) Alerting Service, and/or a Document Signing Service.