Before You Begin Find out what steps you need to complete before getting started with ProviderSource. Login Log in to ProviderSource to manage your provider data used for credentialing. Training Videos & Guides Find videos, FAQs, and guides to help you with ProviderSource. Learn how to upload documents, attest to your application, and more. About ProviderSource Learn about ProviderSource Credentialing for credentialing data management.