Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sierra Kamplain, CCC-SLP

Speech-Language Pathologist in Commerce, CA · enumerated 2019.

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

National Provider Identifier

1669020988

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Registry record

Entity type Individual (Type 1)

Name Sierra Kamplain

Credential CCC-SLP

Sex Female

Practice address 5800 S Eastern Ave Ste 500, Commerce, CA, 90040

Phone (562) 442-6414

Enumeration date Aug 29, 2019

Last updated in NPPES Aug 11, 2023

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 31214 (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

How do I verify Sierra Kamplain's NPI record?

Cross-check NPI 1669020988 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1669020988 active?

Yes — as of the latest NPPES snapshot, NPI 1669020988 is active (record last updated 2023-08-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-11.