Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ob Gyn Affiliates, LLC

Obstetrics & Gynecology Physician in Newton, NJ · enumerated 2006 · authorized official Fred Silverberg, Member.

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

National Provider Identifier

1871547299

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Registry record

Entity type Organization (Type 2)

Legal business name Ob Gyn Affiliates, LLC

Practice address 91 Main St, Box 513, Newton, NJ, 07860

Phone (973) 383-7394

Enumeration date May 20, 2006

Last updated in NPPES May 7, 2008

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Fred Silverberg

Title Member

Phone (973) 383-7394

Other identifiers

Identifier	Type	State	Issuer
001656403	Other	NJ	HIGHMARK BLUE SHIELD
2332895000	Other	NJ	AMERIHEALTH HMO ID
3766027	Other	NJ	AETNA HMO ID

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 2008-05-07. Verify at npiregistry.cms.hhs.gov.

Where is Ob Gyn Affiliates, LLC located?

The practice location on file with NPPES is in Newton, NJ.

Providers at this address

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Advanced Ob-Gyn Associates, LLC Obstetrics & Gynecology Physician · Newton, NJ NPI 1104870740

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-07.