Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eileen Stringfellow

Speech-Language Pathologist in Arlington Heights, IL · enumerated 2015.

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

National Provider Identifier

1588045421

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Registry record

Entity type Individual (Type 1)

Name Eileen Stringfellow

Sex Female

Practice address 739 S Ridge Ave, Arlington Heights, IL, 60005

Phone (847) 636-6460

Fax (847) 636-6460

Enumeration date Jun 16, 2015

Last updated in NPPES Oct 31, 2017

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers 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 1588045421 active?

Yes, as of the latest NPPES snapshot, NPI 1588045421 is active (record last updated 2017-10-31).

How do I verify Eileen Stringfellow's NPI record?

Cross-check NPI 1588045421 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 2017-10-31.