Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Charles Hendler

Hematology & Oncology Physician in Port Jefferson Station, NY · enumerated 2013 · practices at North Shore Hematology/Oncology Associates PC.

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

National Provider Identifier

1780027904

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Charles Hendler

Sex Male

Practice address 1500 Route 112 Bldg 4, Port Jefferson Station, NY, 11776

Phone (631) 751-3000

Enumeration date Apr 8, 2013

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 299990 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
299990	Other	NY	STATE LICENSE

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 do I verify Robert Hendler's NPI record?

Cross-check NPI 1780027904 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780027904 active?

Yes, as of the latest NPPES snapshot, NPI 1780027904 is active (record last updated 2023-03-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.