Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Yu-Chen Chang

Speech-Language Pathologist in Woodbury, NY · enumerated 2025.

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

National Provider Identifier

1346054053

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Registry record

Entity type Individual (Type 1)

Name Thomas Yu-Chen Chang

Sex Male

Practice address 72 S Woods Rd, Woodbury, NY, 11797

Phone (516) 921-7650

Enumeration date Feb 3, 2025

Last updated in NPPES Feb 3, 2025

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License PENDING (NY) 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Thomas Chang?

Thomas Chang is registered in NPPES with the primary taxonomy of Speech-Language Pathologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-03.