When you elect to handle credentialing physicians in-house, you must assign resources to compile and send out application materials to new providers; track the completion and collect the documents; complete the facility portion of the application and credentialing process (like primary source verification, malpractice claims review, etc.); send the applications to payers; and then respond to any requests for corrections or additional information from payers. Additionally, that person (or team) must track re-credentialing deadlines and initiate, track, and complete the process every time a provider is due for re-credentialing.