Provider credentialing is a systematic, multi-step process that healthcare organizations and insurance networks use to verify and assess the qualifications of medical providers. The primary goal is to ensure that providers meet specific standards for professionalism, education, training, experience, and competency. Any licensed healthcare professional (MD, NP, therapist, and PA) who intends to provide direct patient care and bill insurance companies needs to be credentialed; Below is a link that tells us what the top ten credentialing companies do. This info may help.