Skip to content

Matthew Adam Niemi, M.D.

NPI 1053548321ActiveIndividual· Internal Medicine, Nephrology· Worcester, MA

Internal Medicine, Nephrology (M.D.) in Worcester, Massachusetts, trained at Tufts University School of Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $535,844 for 1,019 claims, against $103,687 paid for services in 2024. Corcept Therapeutics was the largest of 2 companies reporting payments in 2024, $131.41 in all, mostly food and beverage.

Overview

NPI1053548321
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 15, 2009
Last updated in NPPESOct 27, 2020
Certified by providerOct 27, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300X251074MA

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 (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients388
Services billed1,197 across 20 procedure codes
Paid by Medicare$103,687

Part D prescriptions in 2024

Prescriptions (claims)1,019 · 2,387 30-day fills
Patients211
Total drug cost$535,844
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Medical schoolTufts University School of Medicine
Graduation year2009
Medicare specialtyNephrology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$131.41 · 2 payments from 2 companies

Top paying companies in 2024

CompanyAmountPayments
Corcept Therapeutics$75.261
Novo Nordisk Inc$56.151

What the 2024 payments were for

  • Food and Beverage$131.41 · 2 payments

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

Other nephrologists in Worcester

All 45 nephrologists in Worcester · All nephrologists in Massachusetts