NPI Portal NPI Lookup & Verification

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

Mrs. Yvonne C Lau, IBCLC

Lactation Consultant (Non-RN) in La Habra Heights, CA · enumerated 2014.

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

National Provider Identifier

1659789295

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Registry record

Entity type Individual (Type 1)
Name Mrs. Yvonne C Lau
Credential IBCLC
Sex Female
Practice address La Habra Heights, CA, 90631
Enumeration date Jul 28, 2014
Last updated in NPPES Jul 28, 2014

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

Taxonomy & licenses

174N00000X Lactation Consultant (Non-RN) Other Service Providers · License IBCLC#10117409 (CA) 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 1659789295 active?
Yes, as of the latest NPPES snapshot, NPI 1659789295 is active (record last updated 2014-07-28).
How do I verify Yvonne Lau's NPI record?
Cross-check NPI 1659789295 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-28.