Can I get a copy of ImPACT Applications’ W-9? You can download a copy of ImPACT Applications’ W-9 form here. Updated on 06/15/2020 Was this article helpful? Yes No Related Articles How do I add another user to my account? Who has access to clinical reports via ImPACT Passport IDs? How do I find my Customer ID Code? How can I change my information on Concussion Care Providers directory? I’m an ITAT, why am I not listed on Concussion Care Providers directory? Why am I not listed on Concussion Care Providers directory?