The Interoperability Proving Ground has been archived and is no longer actively maintained. All information identified as archived is provided for reference, research or recordkeeping purposes.

Interoperability Proving Ground (IPG) submissions within the ONC Tech Lab are submitted by healthcare, technology and development organizations that are invested in Health IT and Interoperability and want to share, learn and collaborate with similar stakeholders in the US, and around the world.

To view all submissions, please view the IPG link located within the ONC Techlab.


The Framework prescribes the technical, legal, security, and identity policies and practices that all members of the community agree to follow. In addition to the Framework, DirectTrust has partnered with EHNAC to put in place a program of Accreditation and Audit that transparently verifies the adherence of all DirectTrust service providers and their customers to the Framework’s criteria.   Federation of trust relationships allows the entire network to operate and grow at scale, without the need for individual one-off negotiations or costly legal contracting between exchange partners. 

1) >1.1 million Direct addresses in use

2) > 67 million Direct transactions since the organization's inception

3) > 52,000 health care organizations served by DirectTrust accredited health information service providers (HISPs)

POC: David Kibbe Email: [email protected]
Start Date
Projected End Date

Project Tags
  • EHR
  • esMD
  • FHIR
  • HIE
  • HISP
  • interoperability
  • Network of Networks
  • provider directory
  • Trusted Exchange Framework
Project Point of Contact:
Project Results