Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Dennis J. Lazzara

Orthodontics and Dentofacial Orthopedics Dentistry in Geneva, IL · enumerated 2009.

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

National Provider Identifier

1730322793

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Registry record

Entity type Individual (Type 1)

Name Dr. Dennis J. Lazzara

Sex Male

Practice address Geneva, IL, 60134

Phone (630) 232-2277

Fax (630) 232-0354

Enumeration date Apr 7, 2009

Last updated in NPPES Apr 7, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 021.000906 (IL) Primary

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 1730322793 active?

Yes, as of the latest NPPES snapshot, NPI 1730322793 is active (record last updated 2009-04-07).

How do I verify Dennis Lazzara's NPI record?

Cross-check NPI 1730322793 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-07.