# Drug Enforcement Administration decode DEA Number Information

## DEA (Drug Enforcement Administration)

Drug Enforcement Administration (DEA) enforces the controlled substances laws and regulations of the United States.

- DEA regulates controlled substances registration numbers licensed health practitors and sites
- Health practitors or sites are assigned DEA number
- These DEA registration number is encoded by two alphabetical letters followed by a seven digit number
- The first letter is always either an ‘A’ or ‘B’. This letter depends on when the DEA number was first issued. All of the ‘A’ s were used up and it changed to B in the late 1980s, about 1987 as I recall.
- The second letter is always the first letter of the practitor’s last name.

## Seven digit mystery

The seven digits have a mathematical relationship that is always followed.

Do this exercise with your DEA number to verify it:

Let’s use the first six digits (142432) as an example to determine what the final digit must be in order for it to be a valid DEA number:

- Add the first, third and fifth numbers.
- In this case we have 1+2+3 = 6
- Now add the second, fourth and sixth numbers. 4+4+2 = 10.
- Double the sum you just calculated 10×2 = 20.
- Add this to the first sum. 20+6 = 26.
- Take the last digit in that sum (the sum is 26, the first digit is 2, the last digit is 6).
- The final digit in the above DEA number must be 6.
- 1424326 is a valid DEA number. Any other digit (other than 6 in this example due to the mathematical relationship that must exist) as the last digit, is a fraud.

## Registrant type (first letter of DEA Number):

A – Deprecated (may be used by some older entities)

B – Hospital/Clinic

C – Practitioner

D – Teaching Institutiion

E – Manufacturer

F – Distributor and/or Practictioner

G – Researcher

H – Analytical Lab

J – Importer

K – Exporter

L – Reverse Distributor

M – Mid-Level Practitioner

N – Narcotic Treatment Program

P – Narcotic Treatment Program

R – Narcotic Treatment Program

S – Narcotic Treatment Program

T – Narcotic Treatment Program

U – Narcotic Treatment Program