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Michael Chisdak, MD

NPI 1295735561ActiveIndividual· Internal Medicine, Pulmonary Disease· Johnson City, NY

Internal Medicine, Pulmonary Disease (MD) in Johnson City, New York, licensed in NY, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $485,359 for 541 claims, against $3,234 paid for services in 2024. Mallinckrodt Hospital Products Inc. reported $23.47 in payments in 2025, mostly food and beverage.

Overview

NPI1295735561
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 28, 2005
Last updated in NPPESMar 24, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Pulmonary Disease Primary207RP1001X168967NY

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 - Pulmonary Disease (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients182
Services billed442 across 6 procedure codes
Paid by Medicare$3,234

Part D prescriptions in 2024

Prescriptions (claims)541 · 903 30-day fills
Patients168
Total drug cost$485,359
Generic share26% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$23.47 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Mallinckrodt Hospital Products Inc.$23.471

What the 2025 payments were for

  • Food and Beverage$23.47 · 1 payment

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

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