The Department of Intellectual and Developmental Disabilities (DIDD) is excited to use Therap as a major component of its integration of all I/DD services in the State of Tennessee. Using Therap will bring the majority of DIDD business processes into alignment, eliminate duplication, and improve service delivery.

As Tennessee continues to move to a single, seamless person-centered system, Therap will streamline processes, expedite service authorizations and claims, and provide the benefit of access to data-driven outcomes that will, ultimately, benefit people supported and providers.

The project will launch in phases with implementation projected for July 1, 2022.  Access to Therap will be provided at no cost to Tennessee Providers.  If you have any questions about the implementation of Therap, please direct those to DIDD Program Alignment Director Alex Gaughan at

Therap's National Catalog can be found here:

DIDD and Therap held a presentation to discuss the project and answer any questions from the provider community. A recording of the presentation and slide deck can be found below:

Therap Informational Presentation for Providers Webex - October 2021

Therap Informational Presentation Slides - October 2021

Therap Presentation for ISCs and Case Managers Webex - October 2021

Therap Presentation for ISCs and Case Managers Slides - October 2021

Therap Provider Presentation WebEx Recording

Therap Provider Presentation 


Electronic Visit Verification (EVV)

DIDD will be transitioning Electronic Visit Verification (EVV) to Therap.

EVV Go-Live Checklist

Therap EVV Presentation for Providers - September 21, 2021

Therap EVV Presentation PowerPoint - September 2021