- Veterans Affairs, Veterans Health Administration (Billings, MT)
- …(JCAHPO). The COA certification is JCAHPO's entry-level certification examination for a Health Technician ( Ophthalmology ). Grade Determinations: GS-5 (Entry ... for diagnosis, treatment, prevention, follow-up care and patient counseling. The Ophthalmology Technician performs screening procedures such as patient history,… more