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Richard Thomas Maziarz, MD

NPI 1275548760ActiveIndividual· Internal Medicine, Hematology· Portland, OR

Internal Medicine, Hematology (MD) in Portland, Oregon, trained at Harvard Medical School (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $614,834 for 341 claims, against $40,653 paid for services in 2024. Incyte Corporation was the largest of 10 companies reporting payments in 2025, $16,452 in all, mostly consulting fees.

Overview

NPI1275548760
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 31, 2006
Last updated in NPPESOct 29, 2026
Certified by providerOct 29, 2026

Specialties and licenses

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 - Hematology/Oncology (OR)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients108
Services billed515 across 18 procedure codes
Paid by Medicare$40,653

Part D prescriptions in 2024

Prescriptions (claims)341 · 422 30-day fills
Patients45
Total drug cost$614,834
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Medical schoolHarvard Medical School
Graduation year1979
Medicare specialtyHematology/Oncology
Secondary specialtiesInternal Medicine, Medical Oncology
TelehealthOffers telehealth

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$16,452 · 26 payments from 10 companies
  • 2024$4,846 · 12 payments from 4 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$9,880 · 2 payments
  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$4,005 · 2 payments
  • Travel and Lodging$1,386 · 4 payments
  • Food and Beverage$1,181 · 18 payments

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

Other Internal Medicine, Hematology providers in Portland

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