Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jeffrey A. Diamond DDS, Inc.

Dental Clinic/Center in Los Altos, CA · enumerated 2017 · authorized official Jeffrey Diamond, Owner.

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

National Provider Identifier

1255863122

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Registry record

Entity type Organization (Type 2)

Legal business name Jeffrey A. Diamond DDS, Inc.

Practice address 158 2nd St, Los Altos, CA, 94022

Phone (650) 948-0786

Fax (650) 948-1006

Enumeration date Mar 30, 2017

Last updated in NPPES Jan 16, 2018

Taxonomy & classification

261QD0000X Dental Clinic/Center Ambulatory Health Care Facilities · License 64887 (CA) Primary

Authorized official

Name Jeffrey Diamond

Title Owner

Phone (650) 948-0786

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

Where is Jeffrey A. Diamond DDS, Inc. located?

The practice location on file with NPPES is in Los Altos, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2018-01-16. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Jeffrey A. Diamond DDS, Inc. General Practice Dentistry · Los Altos, CA NPI 1306354089

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-16.