Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John E. Mazza DDS, Inc.

Periodontics in San Francisco, CA · enumerated 2006 · authorized official John Mazza, President.

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

National Provider Identifier

1093822470

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Registry record

Entity type Organization (Type 2)

Legal business name John E. Mazza DDS, Inc.

Practice address 2480 Mission St, Suite #220, San Francisco, CA, 94110

Phone (415) 641-5200

Fax (415) 641-7004

Enumeration date Aug 23, 2006

Last updated in NPPES Apr 18, 2010

Taxonomy & classification

1223P0300X Periodontics Dental Providers · License 28758 (CA) Primary

Authorized official

Name John Mazza

Title President

Phone (415) 641-5200

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 John E. Mazza DDS, Inc. located?

The practice location on file with NPPES is in San Francisco, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-04-18. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-18.