Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Irene Tiu Dadashzadeh, DMD

Dentist in Santa Ana, CA · enumerated 2008.

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

National Provider Identifier

1669629614

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Registry record

Entity type Individual (Type 1)

Name Irene Tiu Dadashzadeh

Credential DMD

Sex Female

Practice address 715 S Main St, Santa Ana, CA, 92701

Phone (714) 835-6616

Fax (714) 242-7042

Enumeration date Aug 21, 2008

Last updated in NPPES Aug 21, 2008

Taxonomy & licenses

122300000X Dentist Dental Providers · License 37408 (CA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

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

What specialty is Irene Dadashzadeh?

Irene Dadashzadeh is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-21.