Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lauren Grell, SLP

Q: What is the NPI number for Lauren Grell?

The National Provider Identifier (NPI) for Lauren Grell is 1790390417, a Type 1 (individual) record in the CMS NPPES registry.

Speech-Language Pathologist in Redmond, WA · enumerated 2020.

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

National Provider Identifier

1790390417

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Registry record

Entity type Individual (Type 1)

Name Lauren Grell

Credential SLP

Sex Female

Practice address 8301 161st Ave Ne Ste 208, Redmond, WA, 98052

Phone (425) 882-4347

Enumeration date Sep 10, 2020

Last updated in NPPES Sep 10, 2020

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License LL61088996 (WA) 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

Where does Lauren Grell practice?

The practice location on file with NPPES is in Redmond, WA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Lauren Grell?

The National Provider Identifier (NPI) for Lauren Grell is 1790390417, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-10.