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CGS Administrators, LLC

IVR: 866.238.9650 Customer Service and myCGS: 866.270.4909

CERT (Comprehensive Error Rate Testing)

What is CERT?

This section provides a brief history on the CERT process and why it was developed.

CERT Program Processes

This section will provide information on the CERT process for request of additional documentation as well as how to enroll a single point of contact for 10 or more PTAN/OSCAR numbers.

Appealing a CERT Error

Review this section for important appeals information and processes related to CERT

CERT Claim Identifier Tool

CGS has created an online tool that provides you with results of a CERT review. Use this section to access the tool

CERT Task Force

The DME Comprehensive Error Rate Testing (CERT) Task Force is a multi-jurisdictional unit comprised of provider outreach experts from all four DME MACs. They collaborate to provide focused education to the Medicare supplier community in order to decrease the overall CERT error rate.


Review this section to learn more about the Health Insurance Portability and Accountability Act (HIPAA)


This section will give tips on how to reduce the time it takes for CERT to make a decision and how to reduce the CERT errors.

CERT Documentation Contractor Updates

Contact information for the CERT Documentation Center can be located here.

Updated CERT Provider Website

Provides the link to the Provider Website which gives you sample requests for documentation letters, as well as what type of documentation CERT may request if you are audited. It will also contain Attestation letters as well as other useful information.

Contact information for the CERT Contractor is:

CERT Documentation Center
1510 East Parham Road
Henrico, VA 23228

Fax: 804-261-8100
Customer Service: 443-663-2699
Toll Free: 888-779-7477

Use the following email address to contact the call center or when you need an ADR reprinted and sent to a different address.

Use the following email address when you want to submit medical records via email.

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