Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Thao Messinger, PA C

Surgical Physician Assistant in Torrance, CA · enumerated 2006.

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

National Provider Identifier

1992733307

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Registry record

Entity type Individual (Type 1)

Name Ms. Thao Messinger

Credential PA C

Sex Female

Practice address 23365 Hawthorne Blvd Ste 102, Torrance, CA, 90505

Phone (480) 586-7542

Enumeration date Jun 28, 2006

Last updated in NPPES Jan 21, 2021

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 56733 (CA) Primary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 3321 (AZ) Secondary

Other identifiers

Identifier	Type	State	Issuer
988595	Medicaid	AZ	-

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 1992733307 active?

Yes, as of the latest NPPES snapshot, NPI 1992733307 is active (record last updated 2021-01-21).

How do I verify Thao Messinger's NPI record?

Cross-check NPI 1992733307 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-21.