Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Erin Grinnan

Speech-Language Pathologist in Saint Peters, MO · enumerated 2023.

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

National Provider Identifier

1265214217

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Registry record

Entity type Individual (Type 1)

Name Erin Grinnan

Sex Female

Practice address 7055 Mexico Rd Unit 1601, Saint Peters, MO, 63376

Phone (636) 866-1341

Fax (636) 206-2556

Enumeration date Oct 16, 2023

Last updated in NPPES Oct 16, 2023

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 2014044371 (MO) 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 1265214217 active?

Yes, as of the latest NPPES snapshot, NPI 1265214217 is active (record last updated 2023-10-16).

How do I verify Erin Grinnan's NPI record?

Cross-check NPI 1265214217 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 2023-10-16.