Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

North Shore Hematology Oncology Associates

Radiation Oncology Clinic/Center in East Setauket, NY · enumerated 2007 · authorized official Patricia Dandraia, Provider.

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

National Provider Identifier

1255539847

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Registry record

Entity type Organization (Type 2)

Legal business name North Shore Hematology Oncology Associates

Other name <Unavail>

Practice address 181 N Belle Mead Rd, East Setauket, NY, 11733

Phone (631) 751-3000

Enumeration date Jul 5, 2007

Last updated in NPPES Dec 11, 2023

Taxonomy & classification

174400000X Specialist Other Service Providers Secondary

261QX0203X Radiation Oncology Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Patricia Dandraia

Title Provider

Phone (631) 751-3000

Other identifiers

Identifier	Type	State	Issuer
CC5178	Other	NY	RR MEDICARE
00679947	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is North Shore Hematology Oncology Associates?

North Shore Hematology Oncology Associates is registered in NPPES as a Radiation Oncology Clinic/Center (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.

Providers at this address

Browse all →

Martin Silverstein Radiation Oncology Physician · E Setauket, NY NPI 1952306391 Joseph Cirrone Radiation Oncology Physician · East Setauket, NY NPI 1023013117 Marcia Tonnesen Dermatology Physician · East Setauket, NY NPI 1205883238 Wojciech Kucharski Physician Assistant · East Setauket, NY NPI 1437106523 Bruce Meinhard Orthopaedic Surgery Physician · East Setauket, NY NPI 1750338943 Richard Clark Dermatology Physician · East Setauket, NY NPI 1700825429 Leonard Kristal Pediatric Dermatology Physician · East Setauket, NY NPI 1871533810 Michael Guido Neurology Physician · East Setauket, NY NPI 1477594034

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-11.