Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sherri Gruszczynski, SLP

Speech-Language Pathologist in Rancho Santa Margarita, CA · enumerated 2014 · practices at Rainbow Kids Achievement Center.

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

National Provider Identifier

1356745715

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Registry record

Entity type Individual (Type 1)

Name Sherri Gruszczynski

Credential SLP

Sex Female

Practice address 30252 Tomas Ste 100, Rancho Santa Margarita, CA, 92688

Phone (949) 459-1658

Enumeration date Oct 14, 2014

Last updated in NPPES Sep 13, 2018

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License SP 10282 (CA) Primary

SLP · Speech-Language Pathologist: A licensed clinician treating speech, language, and swallowing disorders. About the SLP credential

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 1356745715 active?

Yes, as of the latest NPPES snapshot, NPI 1356745715 is active (record last updated 2018-09-13).

How do I verify Sherri Gruszczynski's NPI record?

Cross-check NPI 1356745715 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 2018-09-13.