Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leigh Ann Grell, MPT

Physical Therapist in Westmont, IL · enumerated 2006.

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

National Provider Identifier

1427009448

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Registry record

Entity type Individual (Type 1)

Name Leigh Ann Grell

Credential MPT

Sex Female

Practice address 600 Oakmont Ln Ste 600c, Westmont, IL, 60559

Phone (630) 575-6250

Enumeration date May 15, 2006

Last updated in NPPES Jun 22, 2023

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 3197 (IA) 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.

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Frequently asked questions

How do I verify Leigh Grell's NPI record?

Cross-check NPI 1427009448 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1427009448 active?

Yes, as of the latest NPPES snapshot, NPI 1427009448 is active (record last updated 2023-06-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-22.