Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Duyen Kim Nguyen, D.O.

Allergy & Immunology Physician in Houston, TX · enumerated 2010.

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

National Provider Identifier

1619288347

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Registry record

Entity type Individual (Type 1)

Name Duyen Kim Nguyen

Credential D.O.

Sex Female

Practice address 13114 Fm 1960 Road West, Suite 100, Houston, TX, 77065

Phone (281) 970-7788

Fax (281) 453-6904

Enumeration date Jun 28, 2010

Last updated in NPPES Aug 26, 2015

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License M8871 (TX) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
TXB110727	Other	TX	MEDICARE PTAN

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

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.

What specialty is Duyen Nguyen?

Duyen Nguyen is registered in NPPES with the primary taxonomy of Allergy & Immunology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-26.