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Doreen B. Brettler, M.D.

NPI 1710960398ActiveIndividual· Internal Medicine, Hematology & Oncology· Worcester, MA

Internal Medicine, Hematology & Oncology (M.D.) in Worcester, Massachusetts, trained at Stanford University School of Medicine (class of 1973). Their prescriptions cost Medicare Part D more than their services did: $2,944,302 for 566 claims, against $57,093 paid for services in 2024. Csl Behring reported $113.91 in payments in 2024, mostly food and beverage.

Overview

NPI1710960398
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedNov 28, 2005
Last updated in NPPESMar 20, 2023
Certified by providerMar 20, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003X40852MA

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 (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients306
Services billed784 across 9 procedure codes
Paid by Medicare$57,093

Part D prescriptions in 2024

Prescriptions (claims)566 · 851 30-day fills
Patients81
Total drug cost$2,944,302
Generic share56% of claims

Medicare sources and data years

Education and affiliations

Medical schoolStanford University School of Medicine
Graduation year1973
Medicare specialtyHematology/Oncology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$113.91 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Csl Behring$113.911

What the 2024 payments were for

  • Food and Beverage$113.91 · 1 payment

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

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