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DR. WILLIAM GEORGE BROWNSTEIN DDS
NPI 1780662379
Dentist - Endodontics in Great Neck, NY

Active since January 04, 2006
1000 NORTHERN BLVD STE 265, GREAT NECK, NY 11021(516) 627-9393(516) 627-9391 Get Directions Write a Review

NPPES record last updated: June 3, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 3, 2026, May 14, 2026, Apr 29, 2026 (3 updates tracked since 2026).

About Dr. William George Brownstein Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM GEORGE BROWNSTEIN DDS (NPI 1780662379) is an individual endodontics provider in Great Neck, New York, licensed in Florida (DN31310) and active in the NPI registry since January 2006. He maintains a secondary practice location in Boca Raton.

NPPES Registry Identity

NPI1780662379
Entity TypeIndividualMale
Primary Taxonomy1223E0200X
Provider Legal NameDR. WILLIAM GEORGE BROWNSTEINCredential: DDS
Location Address1000 NORTHERN BLVD STE 265Great Neck, NY 11021-5338
Mailing Address1000 Northern Blvd Ste 265Great Neck, NY 11021-5338 · (516) 627-9393 · Fax (516) 627-9391
Phone(516) 627-9393
Fax(516) 627-9391
Sole ProprietorYes
Enumeration DateJanuary 4, 2006
Last NPPES UpdateJune 3, 20263 updates tracked since enumeration
NPPES CertifiedJune 3, 2026
✔ NPI 1780662379 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · EndodonticsDental Providers
Taxonomy Code1223E0200X
Licenses✔ Licensed in FL · DN31310✔ Licensed in NY · 040665
Definition
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
1000 NORTHERN BLVD STE 265, Great Neck, NY 11021
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Secondary Practice Location 1

Location 1250 S Ocean Blvd Apt 9ABoca Raton, FL 33432-6255 · Phone (516) 532-4686

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana and more.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Brownstein's NPI number?

The NPI number for William Brownstein is 1780662379. It was assigned to this individual provider in the NPPES registry on January 4, 2006.

Where is William Brownstein located?

William Brownstein practices at 1000 Northern Blvd Ste 265, Great Neck, NY 11021. The listed phone number is (516) 627-9393.

What is William Brownstein's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Endodontics, with taxonomy code 1223E0200X.

What insurance does William Brownstein accept?

Health plans from Anthem Blue Cross and Blue Shield, BEST Life, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 5 other insurers list William Brownstein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Brownstein was last updated on June 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.