Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Anna Hsu, DDS MS

Q: What is the NPI number for Anna Hsu?

The National Provider Identifier (NPI) for Anna Hsu is 1841330198, a Type 1 (individual) record in the CMS NPPES registry.

Periodontics in Oceanside, CA · enumerated 2007.

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

National Provider Identifier

1841330198

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Registry record

Entity type Individual (Type 1)

Name Dr. Anna Hsu

Credential DDS MS

Sex Female

Practice address 3230 Waring Ct, Suite Q, Oceanside, CA, 92056

Phone (415) 810-8467

Enumeration date Feb 7, 2007

Last updated in NPPES Sep 7, 2015

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 54265 (CA) Secondary

1223P0300X Periodontics Dental Providers · License 54265 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Anna Hsu?

The National Provider Identifier (NPI) for Anna Hsu is 1841330198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Anna Hsu practice?

The practice location on file with NPPES is in Oceanside, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-07.