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ESSEX NEPHROLOGY&MEDICALCENTER,PC
NPI 1457463317
Internal Medicine - Nephrology in Belleville, NJ

Active since August 31, 2006
50 NEWARK AVE, SUITE 301, BELLEVILLE, NJ 07109(973) 757-1787 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Essex Nephrology&medicalcenter,pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ESSEX NEPHROLOGY&MEDICALCENTER,PC (NPI 1457463317) is a healthcare organization registered as a nephrology in Belleville, New Jersey and active in the NPI registry since August 2006. The organization lists Gayithri R Keshav, President, as its authorized official.

NPPES Registry Identity

NPI1457463317
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameESSEX NEPHROLOGY&MEDICALCENTER,PC
Location Address50 NEWARK AVE, SUITE 301Belleville, NJ 07109-1185
Mailing Address14 Brown CtLivingston, NJ 07039-1520 · (973) 751-7870
Phone(973) 757-1787
Organization SubpartNo
Authorized OfficialGayithri R KeshavPresident · (973) 751-7870
Enumeration DateAugust 31, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1457463317 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in NJ · 25MA06306800
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
50 NEWARK AVE, Belleville, NJ 07109
Open in Google Maps ↗

Other Identifiers 1

Medicaid7510802NJ

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Essex Nephrology&medicalcenter,pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Essex Nephrology & medicalcenter,pc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Gayithri Keshav, M.D.
Nephrology
NPI 1588767875
140 BELMONT AVE STE 103
Belleville, NJ 07109
(973) 751-7870
✔ PECOS✔ Accepts Medicare0.4 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Essex Nephrology&medicalcenter,pc's NPI number?

The NPI number for Essex Nephrology&medicalcenter,pc is 1457463317. It was assigned to this organization in the NPPES registry on August 31, 2006.

Where is Essex Nephrology&medicalcenter,pc located?

Essex Nephrology&medicalcenter,pc is located at 50 Newark Ave Suite 301, Belleville, NJ 07109. The listed phone number is (973) 757-1787.

What is Essex Nephrology&medicalcenter,pc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Essex Nephrology&medicalcenter,pc enrolled in Medicare?

Yes. Essex Nephrology&medicalcenter,pc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Essex Nephrology&medicalcenter,pc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nephrology) reassigns their Medicare billing to Essex Nephrology&medicalcenter,pc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Essex Nephrology&medicalcenter,pc was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.