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Nassau Nephrology LLP

Nephrology Physician in Bellmore, NY · enumerated 2006 · authorized official Ralph Caselneva, Nephrologist.

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

National Provider Identifier

1639159775

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Registry record

Entity type Organization (Type 2)
Legal business name Nassau Nephrology LLP
Practice address 250 Pettit Avenue, Suite 4, Bellmore, NY, 11710
Phone (516) 409-0106
Fax (516) 409-0108
Enumeration date Jan 17, 2006
Last updated in NPPES Jun 20, 2018

Taxonomy & classification

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ralph Caselneva
Title Nephrologist
Phone (516) 409-0106

Other identifiers

Identifier Type State Issuer
02044677 Medicaid NY -

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 type of organization is Nassau Nephrology LLP?
Nassau Nephrology LLP is registered in NPPES as a Nephrology 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 2018-06-20.