Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nadia Alexandra Chang

School Psychologist in Concord, CA · enumerated 2026.

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

National Provider Identifier

1861312167

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Registry record

Entity type Individual (Type 1)

Name Nadia Alexandra Chang

Sex Female

Practice address 1320 Willow Pass Rd Ste 700, Concord, CA, 94520

Phone (925) 293-2781

Enumeration date Jul 16, 2026

Last updated in NPPES Jul 16, 2026

Taxonomy & licenses

103TS0200X School Psychologist Behavioral Health & Social Service Providers · License 220160058 (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

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 Nadia Chang?

Nadia Chang is registered in NPPES with the primary taxonomy of School Psychologist. 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 2026-07-16.