Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Linda Nguyen, RDH

Dental Hygienist in Chicago, IL · enumerated 2017.

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

National Provider Identifier

1538605571

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Registry record

Entity type Individual (Type 1)

Name Linda Nguyen

Credential RDH

Sex Female

Practice address 25 E Washington St, Suite 1101, Chicago, IL, 60602

Phone (312) 368-8771

Enumeration date Jan 14, 2017

Last updated in NPPES Jan 14, 2017

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 020013326 (IL) Primary

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 1538605571 active?

Yes, as of the latest NPPES snapshot, NPI 1538605571 is active (record last updated 2017-01-14).

How do I verify Linda Nguyen's NPI record?

Cross-check NPI 1538605571 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-14.