Effective Aug. 9, the U.S. Department of Labor’s Office of Workers’ Compensation Programs requires that group medical practices include the rendering provider’s National Provider Identifier when billing for a professional claim.

The rendering provider’s NPI must be associated with an active servicing provider in the OWCP provider file. The DOL will reject providers’ bills if the bill is missing a rendering provider NPI, or the NPI is not associated with an active OWCP provider. 

The new requirement does not apply to providers enrolled as individuals; facilities; and 
nonmedical providers.

The DOL is enforcing this mandate. Beginning on Aug. 11, the DOL rejected several bills providers sent via daisyBill that included a rendering provider NPI that was not on the OWCP list. DaisyBill will alert our clients regarding which providers must register with the OWCP for their NPI to satisfy the new requirement. 

Include (active) rendering provider NPI

The DOL released a message, stating:

Effective Aug. 9, 2025, the Office of Workers’ Compensation Programs (OWCP) will require group practices to include the servicing or rendering provider National Provider Identifier (NPI) when billing a professional claim. In addition, group practices must ensure the submitted servicing or rendering NPI is associated with an active servicing provider in the OWCP provider file.

The DOL provided more specific instructions depending on the method of bill delivery:

• Online (direct data entry): Enter the rendering provider information in the provider information section or at the service line. Instructions and examples are available on the Enter Bills Online Tutorial.
• Electronic data interchange: Enter rendering provider information in the professional claim type Appendix A Loop 2310B for rendering provider information. See the 837 Companion Guide for further details.
• Paper billing: Enter rendering provider information in Box 24J of the service line on the OWCP 1500 professional bill form. See the Health Insurance Claim Form (OWCP-1500). 

DaisyBill submits our clients’ bills via a direct EDI connection with the DOL. A representative of the DOL’s EDI vendor, Acentra, confirmed that the daisyBill e-bills the DOL rejected were technically and structurally sound and compliant; however, the rendering providers on the e-bills the DOL rejected were not associated with an active servicing provider in the OWCP provider file. 

For the daisyBill e-bills the DOL rejected, daisyBill will contact each practice to share which rendering providers must register with the OWCP using the instructions below. 

Going forward, we will monitor all DOL bills and contact any practices that need to register specific rendering providers with the OWCP.

Registering your medical group’s providers with DOL

If your group practice includes rendering providers not on the OWCP’s active list, use the Workers’ Compensation Medical Bill Processing (WCMBP) portal to register the rendering provider. 

The DOL’s Updating Provider Information Resource Guide (pages 35-38) provides specific instructions for OWCP registration.

Catherine Montgomery is the co-founder and CEO of daisyBill, a provider of workers' comp end-to-end revenue cycle management software. This post appears with permission.