Information as of November 1, 2023 from US Department of Labor:

To get started in the Office of Workers’ Compensation Programs’ (OWCP’s) Medical Bill Process System and be added to the OWCP medical provider list, providers should enroll online through the Workers Compensation Medical Bill Processing (WCMBP) portal.

Website Name: OWCP - Medical Bill Processing Portal
URL: https://owcpmed.dol.gov

Website Name: Medical Bill Processing Portal – Provider Get Started
URL: https://owcpmed.dol.gov/portal/provider/get-started
If you need any additional information on our services please feel free to contact us via telephone at 1-866-4-USA-DOL (1-866-487-2365).