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

Mr. Hisham Alnajjar, RVT, RDMS (AB)

Vascular Specialist/Technologist Cardiovascular in El Cajon, CA · enumerated 2023.

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

National Provider Identifier

1558147785

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Registry record

Entity type Individual (Type 1)

Name Mr. Hisham Alnajjar

Credential RVT, RDMS (AB)

Sex Male

Practice address El Cajon, CA, 92020

Phone (619) 977-0486

Enumeration date Sep 5, 2023

Last updated in NPPES Sep 6, 2023

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

Taxonomy & licenses

246XC2903X Vascular Specialist/Technologist Cardiovascular Technologists, Technicians & Other Technical Service Providers Primary

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

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.

What specialty is Hisham Alnajjar?

Hisham Alnajjar is registered in NPPES with the primary taxonomy of Vascular Specialist/Technologist Cardiovascular. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-06.