Primary Source Verification or Provider Credentialing is done by companies who will use the information from CAQH to open the process. During this process, a credentialing specialist verifies all of the information in CAQH or on the application and analyzes it for mismatched information or gaps in information. They determine if accurate information has been provided. Once all information has been verified, the application works its way through a variety of meetings for approval. Once approved, the application can then be sent to the contracting department for a contract to be created and sent to the provider for signature.