National Medtest Inc. specializes in the administration of drug and alcohol testing programs. Located in Jonesboro, Ariz., the company provides drug and alcohol testing programs for more than 500 companies and government agencies. It offers an array of testing services, such as emergency response, random, DNAt, breath alcohol and hair follicle, among others. National Medtest Inc. Additionaly, National Medtest Inc. offers Hazardous Material Endorsement Threat Assessment Program (HAZMAT), student drug testing, nationwide collection as well as workplace testing services.