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Peconic Regional Hematology Oncology, PC

Specialist in Riverhead, NY · enumerated 2007 · authorized official Marilyn Mclaughlin, President.

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

National Provider Identifier

1437361581

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Registry record

Entity type Organization (Type 2)
Legal business name Peconic Regional Hematology Oncology, PC
Practice address 1149 Old Country Rd, Suite C3 & 4, Riverhead, NY, 11901
Phone (631) 727-3000
Fax (631) 727-2600
Enumeration date May 3, 2007
Last updated in NPPES May 17, 2012

Taxonomy & classification

174400000X Specialist Other Service Providers · License 214127 (NY) Primary

Authorized official

Name Marilyn Mclaughlin
Title President
Phone (631) 727-3000

Other identifiers

Identifier Type State Issuer
01981864 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 2012-05-17. Verify at npiregistry.cms.hhs.gov.
Where is Peconic Regional Hematology Oncology, PC located?
The practice location on file with NPPES is in Riverhead, NY.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-17.