Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arthur Joseph Leclaire III, D.M.D., M.S.

Endodontics in Sunnyvale, CA · enumerated 2007.

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

National Provider Identifier

1225249808

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Registry record

Entity type Individual (Type 1)

Name Dr. Arthur Joseph Leclaire III

Credential D.M.D., M.S.

Sex Male

Practice address 516 W Remington Dr, Suite 5b, Sunnyvale, CA, 94087

Phone (408) 736-4669

Fax (408) 736-1813

Enumeration date May 24, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223E0200X Endodontics Dental Providers · License 30105 (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.

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Frequently asked questions

How do I verify Arthur Leclaire's NPI record?

Cross-check NPI 1225249808 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1225249808 active?

Yes, as of the latest NPPES snapshot, NPI 1225249808 is active (record last updated 2007-07-08).

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