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United States (US)

National-ID patterns loaded when you pass countries=["US"] (or "all"). Universal patterns always stay.

This is a detector, not a legal opinion

id-extract matches the shape of these numbers. A hit is not proof that the value was issued, is still valid, or that the cited statute applies to your document. Checksums, where present, only test the extra digit.

SSN_US — Social Security number (SSN)

A nine-digit number assigned by the Social Security Administration to record earnings and administer benefits. It is also used as a taxpayer identifier. Area numbers 000 and 666, group 00, and serial 0000 are not issued.
Package type SSN_US
Shape this package looks for AAA-GG-SSSS, excluding area 000 and 666, group 00, and serial 0000
Checksum none; those unissued groups are excluded from the expression
Example (synthetic) 123-45-6789

Official sources

SSN — SSN (legacy key)

Same pattern as SSN_US, including the excluded area, group, and serial. Kept so older callers that ask for type SSN still match.
Package type SSN
Shape this package looks for AAA-GG-SSSS, excluding area 000 and 666, group 00, and serial 0000
Checksum none; those unissued groups are excluded from the expression
Example (synthetic) 123-45-6789

Official sources

EIN_US — Employer Identification Number (EIN)

A nine-digit federal tax identifier the IRS assigns to businesses, estates, trusts, and other entities. Form SS-4 is the application.
Package type EIN_US
Shape this package looks for NN-NNNNNNN
Checksum none
Example (synthetic) 12-3456789

Official sources

MEDICAL_NPI_US — National Provider Identifier (NPI)

A 10-digit identifier for covered health-care providers under HIPAA Administrative Simplification. CMS assigns it through NPPES. The first digit is 1 or 2.
Package type MEDICAL_NPI_US
Shape this package looks for 10 digits, first digit 1 or 2
Checksum Luhn over prefix 80840 + the 10 digits (CMS)
Example (synthetic) 1234567893

Official sources

DRIVERS_LICENSE_US — Driver licence (state)

Each U.S. state issues its own licence. There is no single federal format. This pattern is deliberately broad.
Package type DRIVERS_LICENSE_US
Shape this package looks for 1–2 letters + 6–8 digits, or 8–9 digits, or 1 letter + 7–8 digits
Checksum none
Example (synthetic) D1234567

Official sources

MEDICAL_LICENSE_US — Medical or DEA-style licence (structural)

A coarse pattern for U.S. professional or DEA-style licence tokens. It is not a complete DEA or state-board recognizer.
Package type MEDICAL_LICENSE_US
Shape this package looks for 1–2 letters + 6–9 digits
Checksum none
Example (synthetic) AB1234567

Official sources

ITIN_US — Individual Taxpayer Identification Number (ITIN)

A tax processing number for a person who needs a U.S. taxpayer identifier and cannot get an SSN. It uses the SSN hyphenation, starts with 9, and the fourth and fifth digits fall in the IRS ranges. A same-span SSN label is dropped.
Package type ITIN_US
Shape this package looks for 9NN-NN-NNNN, middle digits 50–65, 70–88, 90–92, or 94–99
Checksum none
Example (synthetic) 900-70-0000

Official sources

ATIN_US — Adoption Taxpayer Identification Number (ATIN)

A temporary IRS number for a child in a pending domestic adoption. It uses the SSN hyphenation, starts with 9, and the fourth and fifth digits are 93.
Package type ATIN_US
Shape this package looks for 9NN-93-NNNN
Checksum none
Example (synthetic) 900-93-0000

Official sources

PTIN_US — Preparer Tax Identification Number (PTIN)

The identifier a paid tax return preparer puts on returns they prepare. The IRS describes it as the letter P followed by eight digits.
Package type PTIN_US
Shape this package looks for P + 8 digits
Checksum none
Example (synthetic) P00000000

Official sources

MBI_US — Medicare Beneficiary Identifier (MBI)

The 11-character identifier CMS prints on Medicare cards. Characters 2, 5, 8, and 9 are letters. Letters S, L, O, I, B, and Z are excluded. Dashes on the card are optional in text.
Package type MBI_US
Shape this package looks for 11 characters, CMS position classes, optional dashes as 4-3-4
Checksum none
Example (synthetic) 1EG4-TE5-MK73

Official sources

A_NUMBER_US — Alien Registration Number

The DHS file number for a non-citizen. USCIS describes it as the letter A followed by 7, 8, or 9 digits. A shorter number is padded with zeros in current systems.
Package type A_NUMBER_US
Shape this package looks for A, optional hyphen, 7–9 digits
Checksum none
Example (synthetic) A000000001

Official sources

USCIS_RECEIPT_US — USCIS receipt number

The 13-character identifier USCIS assigns to an application or petition: three letters and ten digits.
Package type USCIS_RECEIPT_US
Shape this package looks for 3 letters + 10 digits
Checksum none
Example (synthetic) ABC0000000001

Official sources

DOS_CASE_US — Department of State immigrant case ID

The case id on an immigrant visa packet. USCIS describes the ordinary form as three letters and 9 or 10 digits, and a Diversity Visa case as four digits, two letters, and five digits. A same-span USCIS receipt wins.
Package type DOS_CASE_US
Shape this package looks for 3 letters + 9 or 10 digits, or 4 digits + 2 letters + 5 digits
Checksum none
Example (synthetic) XYZ0123456789

Official sources

DEA_US — DEA registration number

The controlled-substance registration number: two letters and seven digits. The seventh digit is a check digit. A hospital may append a hyphen and an internal suffix under 21 CFR 1301.22(c). A same-span medical-licence label is dropped when the check passes.
Package type DEA_US
Shape this package looks for 2 letters + 7 digits, optional hyphen and suffix
Checksum DEA check digit. A failure is kept as DEA_US_LIKE.
Example (synthetic) AB1234563

Official sources

The example values are synthetic or well-known public test numbers. Do not treat them as issued identifiers.