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DR. WILLIAM O'BRIEN DDS
NPI 1285851634
Dentist - Periodontics in Slidell, LA

Active since April 19, 2007
2790 GAUSE BLVD E, STE 1, SLIDELL, LA 70461(985) 649-9359 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. William O'brien Dds NPPES

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

DR. WILLIAM O'BRIEN DDS (NPI 1285851634) is an individual periodontics provider in Slidell, Louisiana, licensed in Louisiana (3185) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1285851634
Entity TypeIndividualMale
Primary Taxonomy1223P0300X
Provider Legal NameDR. WILLIAM O'BRIENCredential: DDS
Location Address2790 GAUSE BLVD E, STE 1Slidell, LA 70461-4246
Mailing Address2790 Gause Blvd E, Ste 1Slidell, LA 70461-4246 · (985) 649-9359
Phone(985) 649-9359
Sole ProprietorNo
Enumeration DateApril 19, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1285851634 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · PeriodonticsDental Providers
Taxonomy Code1223P0300X
License✔ Licensed in LA · 3185
Definition
That specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes and the maintenance of the health, function and esthetics of these structures and tissues.
2790 GAUSE BLVD E, Slidell, LA 70461
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LOUIS GENARD DDS
Dentist
2790 GAUSE BLVD E, STE1
SLIDELL, LA 70461
St. Tammany Parish (985) 649-9359
DR. BRITTANY ANN CHETTA-THIES DDS
Dentist (General Practice)
2790 GAUSE BLVD E
SLIDELL, LA 70461
St. Tammany Parish (985) 649-9359

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 O'brien's NPI number?

The NPI number for William O'brien is 1285851634. It was assigned to this individual provider in the NPPES registry on April 19, 2007.

Where is William O'brien located?

William O'brien practices at 2790 Gause Blvd E Ste 1, Slidell, LA 70461. The listed phone number is (985) 649-9359.

What is William O'brien's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Periodontics, with taxonomy code 1223P0300X.

When was this NPI record last updated?

The NPPES record for William O'brien was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.