Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dorothy Wenyi Chao, D.D.S.

General Practice Dentistry in Stanton, CA · enumerated 2007 · practices at Dorothy Chao, DDS Inc..

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

National Provider Identifier

1043365059

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Registry record

Entity type Individual (Type 1)

Name Dorothy Wenyi Chao

Credential D.D.S.

Sex Female

Practice address Stanton, CA, 90680

Phone (714) 209-7702

Fax (714) 209-7658

Enumeration date Jan 23, 2007

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 44847 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
8194022	Other	CA	UNITED CONCORDIA HMO
900232	Other	CA	UNITED CONCORDIA PPO
G94098-01	Other	CA	DENTI-CAL PROVIDER ID

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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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 Dorothy Chao?

Dorothy Chao is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Dorothy Chao, DDS Inc. General Practice Dentistry · Stanton, CA NPI 1942492442

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.