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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Toan T. Tyler Nguyen, M.D.

Specialist in Long Beach, CA · enumerated 2006.

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

National Provider Identifier

1639129711

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Registry record

Entity type Individual (Type 1)
Name Toan T. Tyler Nguyen
Credential M.D.
Sex Male
Practice address Long Beach, CA, 90806
Phone (562) 270-4050
Fax (800) 585-2042
Enumeration date May 11, 2006
Last updated in NPPES Jun 12, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A65048 (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
A65048 Other CA STATE LICENSE NO.
P00175864 Other CA CHAMPUS ID. NO.
00CA65048 Other CA B/S PROVIDER NO.

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.

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Frequently asked questions

Where does Toan Nguyen practice?
The practice location on file with NPPES is in Long Beach, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Toan Nguyen?
The National Provider Identifier (NPI) for Toan Nguyen is 1639129711, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-12.