Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lili Trieu, O.D.

Optometrist in New York, NY · enumerated 2007.

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

National Provider Identifier

1174743553

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Registry record

Entity type Individual (Type 1)

Name Dr. Lili Trieu

Credential O.D.

Sex Female

Practice address 110 E 40th St, Suite 601, New York, NY, 10016

Phone (212) 490-3937

Enumeration date Apr 26, 2007

Last updated in NPPES Mar 29, 2016

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 006259 (NY) Primary

152W00000X Optometrist Eye and Vision Services Providers · License 002690 (CT) Secondary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
002690	Other	CT	LICENSE NUMBER
006259	Other	NY	LICENSE NUMBER

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 1174743553 active?

Yes, as of the latest NPPES snapshot, NPI 1174743553 is active (record last updated 2016-03-29).

How do I verify Lili Trieu's NPI record?

Cross-check NPI 1174743553 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 2016-03-29.