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Irwin David Feintzeig, M.D.

NPI 1902805773ActiveIndividual· Internal Medicine, Nephrology· Trumbull, CT

Internal Medicine, Nephrology (M.D.) in Trumbull, Connecticut, licensed in CT, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $205,184 for 517 claims, against $73,025 paid for services in 2024. Otsuka America Pharmaceutical, Inc. reported $27.89 in payments in 2024, mostly food and beverage.

Overview

NPI1902805773
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJul 14, 2005
Last updated in NPPESMay 13, 2024
Certified by providerMay 13, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300X026343CT
Internal Medicine207R00000X026343CT

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Nephrology (CT)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients234
Services billed1,164 across 17 procedure codes
Paid by Medicare$73,025

Part D prescriptions in 2024

Prescriptions (claims)517 · 961 30-day fills
Patients99
Total drug cost$205,184
Generic share78% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2024$27.89 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Otsuka America Pharmaceutical, Inc.$27.891

What the 2024 payments were for

  • Food and Beverage$27.89 · 1 payment

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

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