Athanasios Antoniadis Ob Gyn PC

Athanasios Antoniadis Ob Gyn PC is a healthcare organization registered as Obstetrics & Gynecology Physician in West Islip, NY, holding Type 2 (organization) NPI 1427232545 since 2007. The authorized official on file is Athanasios Antoniadis, President.

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NPI	1427232545
Entity type	Organization (Type 2)
Legal business name	Athanasios Antoniadis Ob Gyn PC
Practice address	750 MONTAUK HWY, West Islip, NY, 11795
Phone	6313761010
Fax	6313762156
Enumeration date	2007-12-26
Last updated in NPPES	2014-04-09

Authorized official

Name	Athanasios Antoniadis
Title	President
Phone	6313761010

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
207V00000X	Obstetrics & Gynecology Physician	Primary	—	—

Copy-ready billing details

Provider: Athanasios Antoniadis Ob Gyn PC
NPI: 1427232545
Taxonomy: 207V00000X (Obstetrics & Gynecology Physician)
Address: 750 MONTAUK HWY, West Islip, NY, 11795

Providers at this address

NPI	Name	Type	Specialty	Location
1730286485	Athanasios Antoniadis	Individual	Obstetrics & Gynecology Physician	West Islip, NY
1750620613	Joanne Lamonica MD PC	Organization	Specialist	West Islip, NY
1174190326	South Shore Womens Care Pllc	Organization	Obstetrics & Gynecology Physician	West Islip, NY

Verify this record

Cross-check NPI 1427232545 against the authoritative CMS record: view Athanasios Antoniadis Ob Gyn PC on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-04-09. Verify at npiregistry.cms.hhs.gov.

Where is Athanasios Antoniadis Ob Gyn PC located?

The practice location on file with NPPES is in West Islip, NY.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-04-09.