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Darren Richard Feldman, M.D.

NPI 1750552055ActiveIndividual· Internal Medicine, Hematology & Oncology· New York, NY

Internal Medicine, Hematology & Oncology (M.D.) in New York, New York, trained at University of Maryland School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $1,008,419 for 101 claims, against $22,296 paid for services in 2024. Exelixis Inc. reported $308.64 in payments in 2025, mostly food and beverage.

Overview

NPI1750552055
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMar 14, 2008
Last updated in NPPESAug 18, 2008

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003X232841NY

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Hematology/Oncology (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients77
Services billed239 across 13 procedure codes
Paid by Medicare$22,296

Part D prescriptions in 2024

Prescriptions (claims)101 · 110 30-day fills
Patients18
Total drug cost$1,008,419
Generic share58% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Maryland School of Medicine
Graduation year2001
Medicare specialtyHematology/Oncology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$308.64 · 2 payments from 1 company
  • 2024$6,631 · 17 payments from 3 companies

Top paying companies in 2025

CompanyAmountPayments
Exelixis Inc.$308.642

What the 2025 payments were for

  • Food and Beverage$308.64 · 2 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

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