Acceptable certifying bodies include: Allied American Health (AAH), American Association of Medical Assistants (AAMA), American Medical Technologists (AMT), American Registry of Medical Assistants (ARMA) - Foreign Medical and Nurses Graduates only, National Association of Health Professionals (NAHP), National Association of Healthcare Technicians (NAHT), National Center for Competency Testing (NCCT), National Healthcareer Association (NHA), Medical Career Assessment (MedCA), and American Medical Certification Association (AMCA). As the largest provider of senior-focused primary care, a leading provider of home healthcare and a leading integrated home delivery, specialty, hospice and retail pharmacy, CenterWell is focused on whole health and addressing the physical, emotional and social wellness of our patients.