Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hieu S Nguyen, M.D.

Cardiovascular Disease Physician in Glendale, CA · enumerated 2006.

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

National Provider Identifier

1275513590

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Registry record

Entity type Individual (Type 1)

Name Hieu S Nguyen

Credential M.D.

Sex Male

Practice address 1510 S Central Ave, Suite 150, Glendale, CA, 91204

Phone (323) 644-9504

Enumeration date Jan 20, 2006

Last updated in NPPES Aug 31, 2011

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License A70907 (CA) Primary

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License A70907 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00A709070	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

What specialty is Hieu Nguyen?

Hieu Nguyen is registered in NPPES with the primary taxonomy of Cardiovascular Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-31.