The process of credentialing actually dates back to as far as 1000 BC, when the ancient Persian cult of Zoraster developed a process for physician 'licensure'. In order to earn the right to practice medicine, a candidate had to prove he or she successfully treated at least three heretics.
When did medical specialization begin?
Professional societies began regulating medical practice by examining and licensing practitioners as early as 1760. By the early 1800s, the medical societies were in charge of establishing regulations, standards of practice, and certification of doctors.
Are all facilities credentialed?
Credentialing and Privileges in Healthcare
Only hospitals used to perform credentialing in the past, but today almost all healthcare facilities, ambulatory care centers, long-term care institutions, and even urgent care clinics perform credentialing.