Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Hai-Sou Chen, D.D.S.

General Practice Dentistry in San Gabriel, CA · enumerated 2007 · practices at Hai-Sou Chen, DDS, A Professional Corp..

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

National Provider Identifier

1346370509

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Registry record

Entity type Individual (Type 1)

Name Dr. Hai-Sou Chen

Credential D.D.S.

Sex Male

Practice address 301 W Valley Blvd Ste 222, San Gabriel, CA, 91776

Phone (626) 573-5637

Enumeration date Mar 6, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 29230 (CA) Primary

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

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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 Hai-Sou Chen?

Hai-Sou Chen 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.

Other providers at this practice address

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Hai-Sou Chen, DDS, A Professional Corp. Health Maintenance Organization · San Gabriel, CA NPI 1720276397

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