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ORANGE HEMATOLOGY-ONCOLOGY PLLC
NPI 1841582822
Internal Medicine - Hematology & Oncology in Cornwall, NY

Active since May 09, 2011
164 WILLOW AVE, CORNWALL, NY 12518(845) 534-3888(845) 534-4208 Get Directions Write a Review

NPPES record last updated: May 9, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Orange Hematology-oncology Pllc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ORANGE HEMATOLOGY-ONCOLOGY PLLC (NPI 1841582822) is a healthcare organization registered as a hematology & oncology in Cornwall, New York and active in the NPI registry since May 2011. The organization lists Richard M Diamond, President, as its authorized official.

NPPES Registry Identity

NPI1841582822
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameORANGE HEMATOLOGY-ONCOLOGY PLLC
Location Address164 WILLOW AVECornwall, NY 12518-1329
Mailing Address164 Willow AvenueCornwall, NY 12518 · (845) 534-3888 · Fax (845) 534-4208
Phone(845) 534-3888
Fax(845) 534-4208
Organization SubpartNo
Authorized OfficialRichard M DiamondPresident · (845) 534-3888
Enumeration DateMay 9, 2011
✔ NPI 1841582822 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
164 WILLOW AVE, Cornwall, NY 12518
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Orange Hematology-oncology Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateNew YorkEnrollment IDO20110715000177Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Orange Hematology-Oncology PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Richard Diamond, MD
Hematology/Oncology
NPI 1316053952
164 WILLOW AVE
Cornwall, NY 12518
(845) 534-3888
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Orange Hematology-Oncology PLLC's NPI number?

The NPI number for Orange Hematology-Oncology PLLC is 1841582822. It was assigned to this organization in the NPPES registry on May 9, 2011.

Where is Orange Hematology-Oncology PLLC located?

Orange Hematology-Oncology PLLC is located at 164 Willow Ave, Cornwall, NY 12518. The listed phone number is (845) 534-3888.

What is Orange Hematology-Oncology PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Orange Hematology-Oncology PLLC enrolled in Medicare?

Yes. Orange Hematology-Oncology PLLC is registered in the Medicare PECOS enrollment system.

When is Orange Hematology-Oncology PLLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Orange Hematology-Oncology PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Hematology/Oncology) reassigns their Medicare billing to Orange Hematology-Oncology PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Orange Hematology-Oncology PLLC was last updated on May 9, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.