Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Elizabeth M Byrne, M.P.T.,A.T.C.

Physical Therapist in Costa Mesa, CA · enumerated 2006.

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

National Provider Identifier

1003839994

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Registry record

Entity type Individual (Type 1)

Name Ms. Elizabeth M Byrne

Credential M.P.T.,A.T.C.

Sex Female

Practice address 1700 Adams Ave, Suite 201, Costa Mesa, CA, 92626

Phone (714) 556-1600

Fax (714) 556-3737

Enumeration date Jul 25, 2006

Last updated in NPPES Nov 30, 2021

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT 19867 (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 Elizabeth Byrne's NPI record?

Cross-check NPI 1003839994 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1003839994 active?

Yes, as of the latest NPPES snapshot, NPI 1003839994 is active (record last updated 2021-11-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-30.