Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Irene O'Ryan-Fox, MS, CCC SLP

Speech-Language Pathologist in Western Springs, IL · enumerated 2016.

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

National Provider Identifier

1578922571

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Registry record

Entity type Individual (Type 1)

Name Ms. Irene O'Ryan-Fox

Credential MS, CCC SLP

Sex Female

Practice address 4732 Wolf Rd, Western Springs, IL, 60558

Phone (708) 246-5735

Enumeration date Feb 18, 2016

Last updated in NPPES Feb 18, 2016

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 146.002454 (IL) 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 1578922571 active?

Yes, as of the latest NPPES snapshot, NPI 1578922571 is active (record last updated 2016-02-18).

How do I verify Irene O'Ryan-Fox's NPI record?

Cross-check NPI 1578922571 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 2016-02-18.