DR. WILLIAM L. O'NEILL D.D.S.
NPI 1497952550
Dentist - General Practice in Englewood Cliffs, NJ

Q: What is William O'neill's NPI number?

The NPI number for William O'neill is 1497952550. It was assigned to this individual provider in the NPPES registry on June 29, 2007.

Q: What is William O'neill's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for William O'neill 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.

Active since June 29, 2007

617 E PALISADE AVE, ENGLEWOOD CLIFFS, NJ 07632(201) 871-9292(201) 871-9298 Get Directions Write a Review

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

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About Dr. William L. O'neill D.d.s. NPPES

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

DR. WILLIAM L. O'NEILL D.D.S. (NPI 1497952550) is an individual general practice provider in Englewood Cliffs, New Jersey, licensed in New Jersey (DI 009011) and active in the NPI registry since June 2007.

NPPES Registry Identity

NPI1497952550

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. WILLIAM L. O'NEILLCredential: D.D.S.

Location Address617 E PALISADE AVEEnglewood Cliffs, NJ 07632-1831

Mailing Address617 E Palisade AveEnglewood Cliffs, NJ 07632-1831 · (201) 871-9292 · Fax (201) 871-9298

Phone(201) 871-9292

Fax(201) 871-9298

Sole ProprietorYes

Enumeration DateJune 29, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1497952550 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in NJ · DI 009011

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

617 E PALISADE AVE, Englewood Cliffs, NJ 07632

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Other Providers at the Same Location NPPES 10

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

DR. DORIS JEAN DANIELSON D.M.D.

Dentist (General Practice)

617 E PALISADE AVE
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 871-9292

PREMIER ORAL SUGERY GROUP PC

Dentist (Oral and Maxillofacial Pathology)

617 E PALISADE AVE
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 567-7500

DR. PATRICIA MARRONE DMD

Dentist (Periodontics)

617 E PALISADE AVE
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 567-7500

KARL W. NIXDORF D.C.

Chiropractor

617 E PALISADE AVE
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 871-4100

DR. ANTHONY FASCIANO D.M.D.

Dentist (Endodontics)

617 E PALISADE AVE
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 894-0350

BEST CARE WELLNESS CENTER, LLC

Clinic/Center

617 E PALISADE AVE, SUITE 101
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 575-2224

DR. EDWARD F. AVERSA

Dentist (General Practice)

617 E PALISADE AVE
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 871-9292

DR. NICKOLAOS JOHN KALLIS DDS

Dentist

617 E PALISADE AVE
ENGLEWOOD CLIFFS, NJ 07632

Bergen County (201) 567-7500

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'neill's NPI number?

The NPI number for William O'neill is 1497952550. It was assigned to this individual provider in the NPPES registry on June 29, 2007.

Where is William O'neill located?

William O'neill practices at 617 E Palisade Ave, Englewood Cliffs, NJ 07632. The listed phone number is (201) 871-9292.

What is William O'neill's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for William O'neill 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.