Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Randall L Nguyen, MD

Ophthalmology Physician in Long Beach, CA · enumerated 2005.

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

National Provider Identifier

1750382008

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Registry record

Entity type Individual (Type 1)

Name Randall L Nguyen

Credential MD

Sex Male

Practice address 4300 Long Beach Blvd, Suite 300, Long Beach, CA, 90807

Phone (562) 984-7024

Fax (562) 428-7394

Enumeration date Aug 9, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License A55189 (CA) Primary

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
00A551890	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 Randall Nguyen?

Randall Nguyen is registered in NPPES with the primary taxonomy of Ophthalmology 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 2007-07-08.