What does the first letter of a DEA number indicate?

The first letter of a DEA number indicates the level of registration of the practitioner. Each DEA number begins with a letter that designates the type of practitioner or entity that is registered to handle controlled substances. For example, if the first letter is "A," this indicates that the registrant is a physician, while a letter "B" may signify a hospital or other facility. This coding allows for the quick identification of the type of registrant, facilitating better regulation and enforcement of controlled substances.

Understanding the significance of the first letter is essential for pharmacists and practitioners, as it informs them of the parameters around the prescription or handling of controlled substances by that individual or entity. It establishes confidence in the legitimacy of the prescription and ensures compliance with federal regulations regarding controlled substances.