Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ninh Nguyen, MD

Surgery Physician in Orange, CA · enumerated 2006.

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

National Provider Identifier

1487734653

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Registry record

Entity type Individual (Type 1)

Name Dr. Ninh Nguyen

Credential MD

Sex Male

Practice address 101 the City Dr S Bldg 22c, Orange, CA, 92868

Phone (888) 717-4463

Enumeration date Oct 16, 2006

Last updated in NPPES Mar 21, 2023

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 000000G84677 (CA) Primary

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

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 Ninh Nguyen?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-21.