Credentia Nurse Aide Credentialing Service provides comprehensive nurse aide competency evaluation and credentialing services across the United States. The company offers online exams, guidelines, and support for nurse aide certification, including the National Nurse Aide Assessment Program (NNAAP) and Medication Aide Certification Exam (MACE). Credentia also maintains active nurse aide registries and provides resources for facilities, evaluators, and state clients. Their services are designed to ensure that nurse aides meet the required standards for competency and certification.