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Thomas J. Brefeld, MD

NPI 1699885871ActiveIndividual· Internal Medicine· Rockford, IL

Internal Medicine (MD) in Rockford, Illinois, trained at Rush Medical College of Rush University (class of 1998). 139 Medicare patients in 2024, $26,499 paid; nearly all of their 165 Part D prescriptions were generic (90%). Beta Bionics, Inc. reported $147.20 in payments in 2025, mostly food and beverage.

Overview

NPI1699885871
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 30, 2006
Last updated in NPPESMay 23, 2025
Certified by providerMay 13, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X036104961IL
Hospitalist208M00000X036104961IL

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 - Hospitalist (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients139
Services billed372 across 14 procedure codes
Paid by Medicare$26,499

Part D prescriptions in 2024

Prescriptions (claims)165 · 175 30-day fills
Patients80
Total drug cost$8,727
Generic share90% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRush Medical College of Rush University
Graduation year1998
Medicare specialtyHospitalist
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$147.20 · 1 payment from 1 company
  • 2024$10,812 · 18 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Beta Bionics, Inc.$147.201

What the 2025 payments were for

  • Food and Beverage$147.20 · 1 payment

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

Other internal medicine physicians in Rockford

All 101 internal medicine physicians in Rockford · All internal medicine physicians in Illinois