Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Obstetrics & Gynecology Associates PC

Obstetrics & Gynecology Physician in Guilford, CT · enumerated 2006 · authorized official Ronald Cwik, Presidnet.

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

National Provider Identifier

1932149721

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Registry record

Entity type Organization (Type 2)

Legal business name Obstetrics & Gynecology Associates PC

Practice address 652 Boston Post Rd, Guilford, CT, 06437

Phone (203) 453-5214

Fax (203) 458-6825

Enumeration date Jun 8, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 016040 (CT) Primary

Authorized official

Name Ronald Cwik

Title Presidnet

Phone (203) 453-5214

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 → Validate an NPI →

Frequently asked questions

What type of organization is Obstetrics & Gynecology Associates PC?

Obstetrics & Gynecology Associates PC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.