Need a copy of ProviderTrust's W-9? Maura December 24, 2018 14:27 Contact our vendor support team - firstname.lastname@example.org and we will send you a copy of ProviderTrust's W-9. Related articles What is an Exclusion? What is VendorProof? How to Cancel Auto-Renewal Compliance Program Guidelines and Prescription Drug Benefit List of CHS hospitals Comments 0 comments Article is closed for comments.