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DR. GEORGE WASHINGTON TIERNAN D.D.S.
NPI 1457512527
Dentist - General Practice in Plainview, NY

Active since June 21, 2008
875 OLD COUNTRY RD, SUITE 101, PLAINVIEW, NY 11803(516) 931-1221(516) 861-6520 Get Directions Write a Review

NPPES record last updated: June 21, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. George Washington Tiernan D.d.s. NPPES

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

DR. GEORGE WASHINGTON TIERNAN D.D.S. (NPI 1457512527) is an individual general practice provider in Plainview, New York, licensed in New York (24690) and active in the NPI registry since June 2008.

NPPES Registry Identity

NPI1457512527
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. GEORGE WASHINGTON TIERNANCredential: D.D.S.
Location Address875 OLD COUNTRY RD, SUITE 101Plainview, NY 11803-4942
Mailing Address24 Spruce StSmithtown, NY 11787-1030 · (631) 724-8365
Phone(516) 931-1221
Fax(516) 861-6520
Sole ProprietorNo
Enumeration DateJune 21, 2008
✔ NPI 1457512527 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in NY · 24690
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.

875 OLD COUNTRY RD, Plainview, NY 11803
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas.Insurance ›

Other Providers at the Same Location NPPES 20

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

HARVEY FINKELSTEIN
Anesthesiology (Pain Medicine)
875 OLD COUNTRY RD, SUITE LL151
PLAINVIEW, NY 11803
Nassau County (516) 681-0202
MS. LINDSEY EILEEN D'AMBRA MS
Audiologist
875 OLD COUNTRY RD, SUITE 200
PLAINVIEW, NY 11803
Nassau County (516) 931-5552
L.I. OFFICE-BASED SURGERY, PLLC
Dermatology (MOHS-Micrographic Surgery)
875 OLD COUNTRY RD, SUITE 300
PLAINVIEW, NY 11803
Nassau County (516) 433-2424
DR. MELANIE MAQUINE D.O.
Internal Medicine
875 OLD COUNTRY RD, SUITE 102
PLAINVIEW, NY 11803
Nassau County (516) 605-2900
CARDIAC CARE, P.C.
Specialist
875 OLD COUNTRY RD, SUITE 102
PLAINVIEW, NY 11803
Nassau County (516) 935-8877
DR. HARVEY SAUL FINKELSTEIN MD
Anesthesiology (Pain Medicine)
875 OLD COUNTRY RD, SUITE LL151
PLAINVIEW, NY 11803
Nassau County (516) 681-0202
NORTH COAST ANESTHESIA LLC
Anesthesiology
875 OLD COUNTRY RD
PLAINVIEW, NY 11803
Nassau County (516) 681-0202
SUSAN BARRETT LANDAU NP
Nurse Practitioner
875 OLD COUNTRY RD, SUITE LL151
PLAINVIEW, NY 11803
Nassau County (516) 681-0202

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 George Tiernan's NPI number?

The NPI number for George Tiernan is 1457512527. It was assigned to this individual provider in the NPPES registry on June 21, 2008.

Where is George Tiernan located?

George Tiernan practices at 875 Old Country Rd Suite 101, Plainview, NY 11803. The listed phone number is (516) 931-1221.

What is George Tiernan's specialty?

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

What insurance does George Tiernan accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list George Tiernan 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 George Tiernan was last updated on June 21, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.