Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Westchester Oncology & Hematology Group, P.C.

Family Nurse Practitioner in Hawthorne, NY · enumerated 2006 · authorized official Tauseef Ahmed, President.

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

National Provider Identifier

1598727315

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Registry record

Entity type Organization (Type 2)

Legal business name Westchester Oncology & Hematology Group, P.C.

Practice address 19 Bradhurst Ave, Suite 2100, Hawthorne, NY, 10532

Phone (914) 493-8375

Fax (914) 347-1832

Enumeration date Apr 5, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & classification

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Tauseef Ahmed

Title President

Phone (914) 493-8375

Other identifiers

Identifier	Type	State	Issuer
01765219	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

Who is the authorized official for Westchester Oncology & Hematology Group, P.C.?

NPPES lists Tauseef Ahmed (President) as the authorized official for this organization.

What is the NPI number for Westchester Oncology & Hematology Group, P.C.?

The NPI for Westchester Oncology & Hematology Group, P.C. is 1598727315, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Martin Cohen Cardiovascular Disease Physician · Hawthorne, NY NPI 1437152618 Arun Goyal Vascular Surgery Physician · Hawthorne, NY NPI 1447253570 Anthony Pucillo Cardiovascular Disease Physician · Hawthorne, NY NPI 1619970530 Patricia Kilcullen Adult Health Nurse Practitioner · Hawthorne, NY NPI 1316940190 Richard Kay Cardiovascular Disease Physician · Hawthorne, NY NPI 1326041393 Jae Ro Cardiovascular Disease Physician · Hawthorne, NY NPI 1184627085 Warren Rosenblum Cardiovascular Disease Physician · Hawthorne, NY NPI 1528061413 Pravin Shah Vascular Surgery Physician · Hawthorne, NY NPI 1326041211

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.