STUART IRWIN MASS M.D.
NPI 1649289513
Radiology - Neuroradiology in San Jose, CA

Q: What is Stuart Mass's NPI number?

The NPI number for Stuart Mass is 1649289513. It was assigned to this individual provider in the NPPES registry on August 7, 2006.

Q: What is Stuart Mass's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Q: When was this NPI record last updated?

The NPPES record for Stuart Mass was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 07, 2006

2410 SAMARITAN DR, SUITE 102, SAN JOSE, CA 95124(408) 371-0728(408) 371-1164 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Stuart Irwin Mass M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STUART IRWIN MASS M.D. (NPI 1649289513) is an individual neuroradiology provider in San Jose, California, licensed in California (G24936) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1649289513

Entity TypeIndividualMale

Primary Taxonomy2085N0700X

Provider Legal NameSTUART IRWIN MASSCredential: M.D.

Location Address2410 SAMARITAN DR, SUITE 102San Jose, CA 95124-3909

Mailing Address2410 Samaritan Dr, Suite 101San Jose, CA 95124-3909 · (408) 371-0390 · Fax (408) 371-0462

Phone(408) 371-0728

Fax(408) 371-1164

Sole ProprietorNo

Enumeration DateAugust 7, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1649289513 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · NeuroradiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085N0700X

License✔ Licensed in CA · G24936

Definition

A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License G24936 (CA)

2410 SAMARITAN DR, San Jose, CA 95124

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Other Identifiers 1

Medicaid00G249360CA

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ENDOSCOPY SURGERY CENTER OF SILICON VALLEY LLC

Clinic/Center (Ambulatory Surgical)

2410 SAMARITAN DR, SUITE 101
SAN JOSE, CA 95124

Santa Clara County (615) 345-6879

RAJEEV LAL TANDON M.D.

Radiology (Diagnostic Radiology)

2410 SAMARITAN DR, SUITE 102
SAN JOSE, CA 95124

Santa Clara County (408) 371-0728

ENDOSCOPY CENTER OF SILICON VALLEY INC.

Clinic/Center (Endoscopy)

2410 SAMARITAN DR, 101
SAN JOSE, CA 95124

Santa Clara County (408) 369-9798

MATTHEW THIEN TRAN M.D.

Radiology (Diagnostic Radiology)

2410 SAMARITAN DR, SUITE 102
SAN JOSE, CA 95124

Santa Clara County (408) 371-0728

VIP VEIN CENTER

Radiology (Vascular & Interventional Radiology)

2410 SAMARITAN DR, SUITE 102
SAN JOSE, CA 95124

Santa Clara County (408) 371-8346

CYNTHIA JEAN SIGLER M.D.

Radiology (Diagnostic Radiology)

2410 SAMARITAN DR, SUITE 102
SAN JOSE, CA 95124

Santa Clara County (408) 371-0728

ANDREW PATRICK DURKIN M.D.

Radiology (Nuclear Radiology)

2410 SAMARITAN DR, SUITE 102
SAN JOSE, CA 95124

Santa Clara County (408) 371-0728

KEITH BRADLEY FORD M.D.

Radiology (Diagnostic Radiology)

2410 SAMARITAN DR, SUITE 101
SAN JOSE, CA 95124

Santa Clara County (408) 371-0390

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stuart Mass's NPI number?

The NPI number for Stuart Mass is 1649289513. It was assigned to this individual provider in the NPPES registry on August 7, 2006.

Where is Stuart Mass located?

Stuart Mass practices at 2410 Samaritan Dr Suite 102, San Jose, CA 95124. The listed phone number is (408) 371-0728.

What is Stuart Mass's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

When was this NPI record last updated?

The NPPES record for Stuart Mass was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.