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Brennan Barrett, D.O.

NPI 1669847307ActiveIndividual· Radiology, Diagnostic Radiology· Chicago, IL

Radiology, Diagnostic Radiology (D.O.) with Mount Sinai Community Foundation and 2 other groups, practicing in Chicago, Illinois. Medicare paid $40,588 for services to 919 patients in 2024. Penumbra, Inc. was the largest of 3 companies reporting payments in 2025, $2,008 in all, mostly travel and lodging. Lists Amita Health Resurrection Medical Center and 4 other hospitals as hospital affiliations.

Overview

NPI1669847307
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorNo
NPI issuedDec 7, 2015
Last updated in NPPESFeb 9, 2026
Certified by providerFeb 9, 2026

Specialties and licenses

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 - Interventional Radiology (IL); Practitioner - Diagnostic Radiology (NE)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients919
Services billed1,312 across 115 procedure codes
Paid by Medicare$40,588

Medicare sources and data years

Education and affiliations

Graduation year2015
Medicare specialtyInterventional Radiology

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,008 · 7 payments from 3 companies
  • 2024$556.49 · 21 payments from 6 companies

Top paying companies in 2025

CompanyAmountPayments
Penumbra, Inc.$1,8985
Inari Medical, Inc.$86.171
Stryker Corporation$23.941

What the 2025 payments were for

  • Travel and Lodging$1,298 · 2 payments
  • Food and Beverage$709.80 · 5 payments

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

Other diagnostic radiologists in Chicago

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