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Greenwich Ophthalmology Assoc

Ophthalmology Physician in Greenwich, CT · enumerated 2005 · authorized official Christine Birdsall, Practice Administrator.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1700879004

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Registry record

Entity type Organization (Type 2)
Legal business name Greenwich Ophthalmology Assoc
Practice address 4 Dearfield Dr, Greenwich, CT, 06831
Phone (203) 869-3082
Fax (203) 869-6453
Enumeration date Aug 23, 2005
Last updated in NPPES Mar 29, 2018

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Christine Birdsall
Title Practice Administrator
Phone (203) 869-3082

Other identifiers

Identifier Type State Issuer
CH8430 Other - RR MEDICARE

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.

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Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Greenwich Ophthalmology Assoc?
Greenwich Ophthalmology Assoc is registered in NPPES as a Ophthalmology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-29.