Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Westchester Radiation Oncology, P.C.

Radiation Oncology Physician in White Plains, NY · enumerated 2007 · authorized official Nabil Arslan, President.

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

National Provider Identifier

1699828467

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Registry record

Entity type Organization (Type 2)

Legal business name Westchester Radiation Oncology, P.C.

Practice address 137 Maple Ave, Unit # 1, White Plains, NY, 10601

Phone (914) 948-2257

Fax (845) 638-2038

Enumeration date Jan 18, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 159750 (NY) Primary

Authorized official

Name Nabil Arslan

Title President

Phone (914) 948-2257

Other identifiers

Identifier	Type	State	Issuer
137515	Other	NY	WELLCARE OF NEW YORK, INC
02289389	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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is Westchester Radiation Oncology, P.C. located?

The practice location on file with NPPES is in White Plains, NY.

Providers at this address

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Gary Markovits General Practice Dentistry · White Plains, NY NPI 1356365068 Nabil Arslan Radiation Oncology Physician · White Plains, NY NPI 1154415735

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