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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. BENJAMIN HENRY VANDERZWAAG M.D.
NPI 1245201805
Radiology - Diagnostic Radiology in Napa, CA

Active since January 31, 2006
575 LINCOLN, SUITE 310, NAPA, CA 94558(707) 256-3800(707) 256-3508 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Benjamin Henry Vanderzwaag M.d. NPPES

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

DR. BENJAMIN HENRY VANDERZWAAG M.D. (NPI 1245201805) is an individual diagnostic radiology provider in Napa, California, licensed in California (C33747) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1245201805
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. BENJAMIN HENRY VANDERZWAAGCredential: M.D.
Location Address575 LINCOLN, SUITE 310Napa, CA 94558
Mailing Address2365 Westlake DrKelseyville, CA 95451-7055 · (707) 279-2078 · Fax (707) 279-0890
Phone(707) 256-3800
Fax(707) 256-3508
Sole ProprietorNo
Enumeration DateJanuary 31, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1245201805 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in CA · C33747
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
575 LINCOLN, Napa, CA 94558
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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 Benjamin Vanderzwaag's NPI number?

The NPI number for Benjamin Vanderzwaag is 1245201805. It was assigned to this individual provider in the NPPES registry on January 31, 2006.

Where is Benjamin Vanderzwaag located?

Benjamin Vanderzwaag practices at 575 Lincoln Suite 310, Napa, CA 94558. The listed phone number is (707) 256-3800.

What is Benjamin Vanderzwaag's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

When was this NPI record last updated?

The NPPES record for Benjamin Vanderzwaag was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.