DEA Number Generator (USA)
Generate and format valid Drug Enforcement Administration (DEA) registration numbers for US prescribers and pharmacies.
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About the DEA Registration Number
A DEA Number is an identifier assigned by the US Drug Enforcement Administration (Department of Justice) that allows medical practitioners, pharmacies, and hospitals to prescribe and handle controlled substances.
Composed of 2 letters and 7 digits, the identifier encodes the registrant's practitioner classification, their legal last name initial, and a checksum calculated by DEA's proprietary formula.
Anatomy & Structure of the DEA Number (9 Characters)
Official structure regulated by the Controlled Substances Act (21 CFR Part 1301):
| Position | Field | Length | Meaning & Rule | Example |
|---|---|---|---|---|
| 1 | Registrant Type | 1 letter | Registrant category (A/B/F/C for Practitioners, M for Mid-Level, P/R for Distributors) | A |
| 2 | Registrant Initial | 1 letter/digit | First letter of legal last name or business entity (or 9 if beginning with a digit) | B |
| 3 to 8 | Sequential Identifier | 6 digits | Unique numeric identifier assigned by the DEA | 123456 |
| 9 | Check Digit | 1 digit | Checksum digit calculated via (Odd Sum + 2 * Even Sum) mod 10 | 3 |
DEA Checksum Algorithm
Proprietary official formula applied to the 6 central sequential digits:
Total = (d1 + d3 + d5) + 2 * (d2 + d4 + d6) | Check Digit = Total % 10
- 1. Sum the 1st, 3rd, and 5th digits (Sum 1).
- 2. Sum the 2nd, 4th, and 6th digits and multiply the result by 2 (Sum 2).
- 3. Add both partial sums together (Total = Sum 1 + Sum 2).
- 4. The check digit is the last digit of the total (Total mod 10).