CMA, RMA, CCMA, or NCMA, certification through an NCCA accredited program approved provider list includes the American Association of Medical Assistants (AAMA), the American Medical Technologists (AMT), the National HealthCareer Association (NHA) or the National Center for Competency Testing (NCCT). Under physician direction and supervision, prepares patients for office visit, takes vital signs and records in medical record, obtains patient chief complaint, escorts patient to exam room, and prepares patient for physician visit.