Need a copy of ProviderTrust's W-9? Maura August 25, 2020 13:56 Updated Attached to this article is a copy of ProviderTrust's W-9. PT W9 2021.pdf 100 KB Download Related articles What Is the VendorProof Marketplace? I am already signed up with a Rep Credentialing Service so why do I need to signup with VendorProof? Learning VendorProof: Key Terms and Acronyms What Happens if I Don't Complete Enrollment? Comments 0 comments Article is closed for comments.