Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Duc Nguyen MD Corp

Pulmonary Disease Physician in Simi Valley, CA · enumerated 2007 · authorized official Duc Nguyen, Owner.

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

National Provider Identifier

1487842365

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Registry record

Entity type Organization (Type 2)

Legal business name Duc Nguyen MD Corp

Practice address 1177 Roadrunner Way, Simi Valley, CA, 93065

Phone (805) 520-1577

Fax (805) 520-8091

Enumeration date Oct 4, 2007

Last updated in NPPES Mar 29, 2018

Taxonomy & classification

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License A53620 (CA) Primary

Authorized official

Name Duc Nguyen

Title Owner

Phone (805) 520-1577

Other identifiers

Identifier	Type	State	Issuer
00A536201	Medicaid	CA	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-03-29. Verify at npiregistry.cms.hhs.gov.

Where is Duc Nguyen MD Corp located?

The practice location on file with NPPES is in Simi Valley, CA.

Providers at this address

Browse all →

Pauline Nguyen Nurse Practitioner · Simi Valley, CA NPI 1386078194

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-29.