NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Orange Hematology-Oncology Pllc

Hematology & Oncology Physician in Cornwall, NY · enumerated 2011 · authorized official Richard Diamond, President.

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

National Provider Identifier

1841582822

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Orange Hematology-Oncology Pllc
Practice address 164 Willow Ave, Cornwall, NY, 12518
Fax (845) 534-4208
Enumeration date May 9, 2011
Last updated in NPPES May 9, 2011

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Richard Diamond
Title President

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 is the NPI number for Orange Hematology-Oncology Pllc?
The NPI for Orange Hematology-Oncology Pllc is 1841582822, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Orange Hematology-Oncology Pllc?
NPPES lists Richard Diamond (President) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-09.