US DEA Number (Drug Enforcement Administration) Regex for Python

What this pattern does

This page provides a well-structured, multi-part regular expression for matching us dea number (drug enforcement administration), ported and verified for Python. Identity and credential patterns need both correctness and safety, since they're frequent targets for adversarial input. The snippet below is ready to drop into your Python project — whether you're validating in a Django view, a FastAPI endpoint, or a standalone data processing script.

Python Implementation

# US DEA Number (Drug Enforcement Administration)
# ReDoS-safe | RegexVault — Identity & PII > Health Identifiers

import re

us_dea_number_drug_enforcement_administration_pattern = re.compile(r'^[ABCDEFGHJKLMNPQRSTUX][A-Z9][0-9]{7}$')

def validate_us_dea_number_drug_enforcement_administration(value: str) -> bool:
    return bool(us_dea_number_drug_enforcement_administration_pattern.fullmatch(value))

# Example
print(validate_us_dea_number_drug_enforcement_administration("AB1234563"))  # True

Test Cases

When to use this pattern

This pattern is drawn from the Identity & PII > Health Identifiers category and carries a ReDoS-safe certification. That matters for Python developers because particularly important in Python web servers where CPU-bound regex operations can stall concurrent request handling. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

DEA number structure: registrant type letter (A=hospital, B=pharmacy, C=practitioner, etc.) + registrant first letter of last name or 9 + 7 digits. Check digit: (d1+d3+d5) + 2*(d2+d4+d6), last digit of sum's rightmost digit = d7.