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

Dr. Marta C Plaza, MD

Specialist in Mayaguez, PR · enumerated 2005.

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

National Provider Identifier

1093700080

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Registry record

Entity type Individual (Type 1)

Name Dr. Marta C Plaza

Credential MD

Sex Female

Practice address Mayaguez, PR, 00680

Phone (787) 834-1021

Fax (787) 834-1051

Enumeration date Sep 15, 2005

Last updated in NPPES Sep 7, 2010

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 13478 (PR) 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
20253	Other	PR	TRIPLE S
5618	Other	PR	FIRST MEDICAL
PE4613	Other	PR	PAN AMERICAN
20170B	Other	PR	PREFERRED MEDICARE CHOICE
660606085	Other	PR	MEDICAL CARD SYSTEM
5106085	Other	PR	UIA
221055	Other	PR	PREFERRED UTI
660606085	Other	PR	PLAN DE SALUD BELLA VISTA
6800165	Other	PR	HUMANA INSURANCE
100041	Other	PR	CRUZ AZUL

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 Marta Plaza?

Marta Plaza is registered in NPPES with the primary taxonomy of Specialist. 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.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-07.