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Isao Iwata, M.D.

NPI 1295921773ActiveIndividual· Internal Medicine, Geriatric Medicine· Plainsboro, NJ

Internal Medicine, Geriatric Medicine (M.D.) in Plainsboro, New Jersey, licensed in NJ, with an NPI issued in September 2007. Their prescriptions cost Medicare Part D more than their services did: $372,540 for 4,604 claims, against $61,242 paid for services in 2024.

Overview

NPI1295921773
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedSep 19, 2007
Last updated in NPPESSep 30, 2021
Certified by providerJun 10, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Geriatric Medicine Primary207RG0300X25MA09972900NJ

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 - Geriatric Medicine (NJ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients389
Services billed1,109 across 43 procedure codes
Paid by Medicare$61,242

Part D prescriptions in 2024

Prescriptions (claims)4,604 · 10,770 30-day fills
Patients533
Total drug cost$372,540
Generic share90% of claims

Medicare sources and data years

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other Internal Medicine, Geriatric Medicine providers in Plainsboro

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