Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arthur K. Hayashi,D.D.S.,Inc

Q: What is the NPI number for Arthur K. Hayashi,D.D.S.,Inc?

The NPI for Arthur K. Hayashi,D.D.S.,Inc is 1295861300, a Type 2 (organization) record in the CMS NPPES registry.

General Practice Dentistry in Watsonville, CA · enumerated 2007 · authorized official Arthur Hayashi, President.

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

National Provider Identifier

1295861300

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Registry record

Entity type Organization (Type 2)

Legal business name Arthur K. Hayashi,D.D.S.,Inc

Practice address 64 Penny Ln Ste C, Watsonville, CA, 95076

Phone (831) 728-2096

Fax (831) 728-2143

Enumeration date Feb 25, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 22896 (CA) Primary

Authorized official

Name Arthur Hayashi

Title President

Phone (831) 728-2096

Other identifiers

Identifier	Type	State	Issuer
B 22896-01	Other	CA	DENTI-CAL

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 Arthur K. Hayashi,D.D.S.,Inc?

The NPI for Arthur K. Hayashi,D.D.S.,Inc is 1295861300, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Arthur K. Hayashi,D.D.S.,Inc?

NPPES lists Arthur Hayashi (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.