The ABMS, established in 1933, is the largest and most influential organization involved with physician credentialing. It has 24 independent member boards, and currently credentials over 80% of American physicians.
“Board certification by an ABMS member board . . . represents a physician‟s commitment to the national movement for healthcare quality. It is a significant indicator of the knowledge, skills and experience a physician offers, and it is a standard that is widely referenced and respected by hospitals and healthcare organizations, insurers and quality organizations to help them find good physicians.” (Guide to Physician Specialties, Introduction; American Board of Medical Specialties; February 2008).