Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ellen Mary Armstrong, OTR/L

Occupational Therapist in Pasadena, CA · enumerated 2026 · practices at Pasadena Unified School District Health Clinic.

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

National Provider Identifier

1003741778

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Registry record

Entity type Individual (Type 1)

Name Ellen Mary Armstrong

Credential OTR/L

Sex Female

Practice address 351 S Hudson Ave, Pasadena, CA, 91101

Phone (626) 396-3600

Enumeration date Jun 15, 2026

Last updated in NPPES Jun 15, 2026

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 12551 (CA) 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 Ellen Armstrong's NPI record?

Cross-check NPI 1003741778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1003741778 active?

Yes, as of the latest NPPES snapshot, NPI 1003741778 is active (record last updated 2026-06-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-15.