Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Mazor, DMD

Dentist in Bryn Mawr, PA · enumerated 2019.

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

National Provider Identifier

1699339937

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Registry record

Entity type Individual (Type 1)

Name Dr. David Mazor

Credential DMD

Sex Male

Practice address 931 E Haverford Rd, Bryn Mawr, PA, 19010

Phone (610) 525-2311

Enumeration date Apr 23, 2019

Last updated in NPPES Feb 19, 2025

Taxonomy & licenses

122300000X Dentist Dental Providers · License DS042565 (PA) 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

Is NPI 1699339937 active?

Yes, as of the latest NPPES snapshot, NPI 1699339937 is active (record last updated 2025-02-19).

How do I verify David Mazor's NPI record?

Cross-check NPI 1699339937 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-19.