Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David A Lazarchik, DMD

General Practice Dentistry in Pomona, CA · enumerated 2006.

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

National Provider Identifier

1639100316

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Registry record

Entity type Individual (Type 1)

Name Dr. David A Lazarchik

Credential DMD

Sex Male

Practice address 795 E Second St Suite 8, Western University Dental Care Center, Pomona, CA, 91766

Phone (909) 706-3910

Fax (909) 706-3878

Enumeration date Jul 5, 2006

Last updated in NPPES Jun 1, 2010

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 56757 (CA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
ZG3325	Medicaid	SC	-
438842543A	Medicaid	GA	-

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 David Lazarchik's NPI record?

Cross-check NPI 1639100316 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639100316 active?

Yes, as of the latest NPPES snapshot, NPI 1639100316 is active (record last updated 2010-06-01).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-01.