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Avery Center for Obgyn PC

Obstetrics & Gynecology Physician in Westport, CT · enumerated 2006 · authorized official Denis Sivak, Ceo.

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

National Provider Identifier

1922175587

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Registry record

Entity type Organization (Type 2)
Legal business name Avery Center for Obgyn PC
Practice address 12 Avery Pl, Westport, CT, 06880
Phone (203) 227-5125
Fax (203) 222-7180
Enumeration date Nov 29, 2006
Last updated in NPPES Jan 19, 2012

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Denis Sivak
Title Ceo
Phone (203) 227-5125

Other identifiers

Identifier Type State Issuer
02400 Other CT SHELLEY GIBSON

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-01-19. Verify at npiregistry.cms.hhs.gov.
Where is Avery Center for Obgyn PC located?
The practice location on file with NPPES is in Westport, CT.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-19.