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

Freddy Mas Vargas, MT

Clinical Medical Laboratory in Aguada, PR · enumerated 2005.

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

National Provider Identifier

1346232410

Verified

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Registry record

Entity type Individual (Type 1)

Name Freddy Mas Vargas

Credential MT

Sex Male

Practice address Aguada, PR, 00602

Phone (787) 868-4453

Fax (787) 868-0780

Enumeration date Aug 16, 2005

Last updated in NPPES Sep 18, 2024

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

Taxonomy & licenses

246QL0900X Laboratory Management Specialist/Technologist Technologists, Technicians & Other Technical Service Providers · License 2977 (PR) Secondary

291U00000X Clinical Medical Laboratory Laboratories · License 878 (PR) Primary

Other identifiers

Identifier	Type	State	Issuer
878	Other	PR	LABORATORIO CLINICO JERUSALEN
0031010	Other	PR	MEDICARE PIN
037647400	Medicaid	PR	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Freddy Mas Vargas?

Freddy Mas Vargas is registered in NPPES with the primary taxonomy of Clinical Medical Laboratory. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-18.