Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Arturo A Martinez, M.D.

Internal Medicine Physician in Laredo, TX · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1235159104

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Registry record

Entity type Individual (Type 1)

Name Arturo A Martinez

Credential M.D.

Sex Male

Practice address Laredo, TX, 78041

Phone (956) 726-0647

Fax (956) 725-1575

Enumeration date Jul 20, 2006

Last updated in NPPES Mar 7, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License H6743 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
9797B	Other	TX	ECFMG
138522113	Medicaid	TX	-
H6743	Other	TX	LICENSE
20072680	Other	TX	DPS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Arturo Martinez?

Arturo Martinez is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.