Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lien Huynh Thi Nguyen, MD

Pediatrics Physician in Stockton, CA · enumerated 2006.

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

National Provider Identifier

1770555013

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Registry record

Entity type Individual (Type 1)

Name Lien Huynh Thi Nguyen

Credential MD

Sex Female

Practice address 1545 Saint Marks Plz Ste 3, Stockton, CA, 95207

Phone (209) 957-3901

Fax (209) 957-2857

Enumeration date Feb 2, 2006

Last updated in NPPES Apr 19, 2023

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License A37377 (CA) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A37377 (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
6469530	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

Is NPI 1770555013 active?

Yes, as of the latest NPPES snapshot, NPI 1770555013 is active (record last updated 2023-04-19).

How do I verify Lien Nguyen's NPI record?

Cross-check NPI 1770555013 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Trinh Vu Pediatrics Physician · Stockton, CA NPI 1396716791

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-19.