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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARSHA A GUERREIN MD
NPI 1093790206
Radiology - Diagnostic Radiology in Torrance, CA

Active since December 09, 2005
410 TORRANCE BOULEVARD, TORRANCE, CA 90503(310) 540-7676 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Marsha A Guerrein Md NPPES

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

MARSHA A GUERREIN MD (NPI 1093790206) is an individual diagnostic radiology provider in Torrance, California, licensed in California (A39687) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1093790206
Entity TypeIndividualFemale
Primary Taxonomy2085R0202X
Provider Legal NameMARSHA A GUERREINCredential: MD
Location Address410 TORRANCE BOULEVARDTorrance, CA 90503
Mailing Address100 Oceangate, Suite 1000Long Beach, CA 90802-4312 · (562) 590-7400 · Fax (562) 590-7452
Phone(310) 540-7676
Sole ProprietorNo
Enumeration DateDecember 9, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1093790206 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 · A39687
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
410 TORRANCE BOULEVARD, Torrance, CA 90503
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Other Identifiers 1

Other00A396870CA · Medi Cal

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 Marsha Guerrein's NPI number?

The NPI number for Marsha Guerrein is 1093790206. It was assigned to this individual provider in the NPPES registry on December 9, 2005.

Where is Marsha Guerrein located?

Marsha Guerrein practices at 410 Torrance Boulevard, Torrance, CA 90503. The listed phone number is (310) 540-7676.

What is Marsha Guerrein'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 Marsha Guerrein 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 23 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.