Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jennifer C Diaz, DMD

Dentist in San Leandro, CA · enumerated 2023 · practices at Diaz-Maniego Professional Dental Corporation.

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

National Provider Identifier

1184305880

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Registry record

Entity type Individual (Type 1)

Name Jennifer C Diaz

Credential DMD

Sex Female

Practice address 263 Davis St, San Leandro, CA, 94577

Phone (510) 861-3471

Fax (510) 357-8898

Enumeration date Jul 26, 2023

Last updated in NPPES Jul 26, 2023

Taxonomy & licenses

122300000X Dentist Dental Providers · License 48254 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Jennifer Diaz's NPI record?

Cross-check NPI 1184305880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1184305880 active?

Yes, as of the latest NPPES snapshot, NPI 1184305880 is active (record last updated 2023-07-26).

Other providers at this practice address

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Diaz-Maniego Professional Dental Corporation General Practice Dentistry · San Leandro, CA NPI 1740490598 Rogelia Maniego General Practice Dentistry · San Leandro, CA NPI 1063672624

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-26.