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Matthew Ross Zanghi, M.D.

NPI 1346688041ActiveIndividual· Internal Medicine· Leominster, MA

Internal Medicine (M.D.) in Leominster, Massachusetts, trained at University of Massachusetts Medical School (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $371,599 for 6,430 claims, against $37,221 paid for services in 2024. Novo Nordisk Inc reported $50.62 in payments in 2025, mostly food and beverage.

Overview

NPI1346688041
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 5, 2013
Last updated in NPPESJul 10, 2026
Certified by providerJul 10, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X255970MA

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 - Internal Medicine (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients284
Services billed769 across 22 procedure codes
Paid by Medicare$37,221

Part D prescriptions in 2024

Prescriptions (claims)6,430 · 14,194 30-day fills
Patients545
Total drug cost$371,599
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Massachusetts Medical School
Graduation year2013
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$50.62 · 2 payments from 1 company

Top paying companies in 2025

CompanyAmountPayments
Novo Nordisk Inc$50.622

What the 2025 payments were for

  • Food and Beverage$50.62 · 2 payments

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

Other internal medicine physicians in Leominster

All 41 internal medicine physicians in Leominster · All internal medicine physicians in Massachusetts