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Karen Kim Quirk, MD

NPI 1639363138ActiveIndividual· Surgery, Vascular Surgery· Oxnard, CA

Surgery, Vascular Surgery (MD) in Oxnard, California, trained at University of California, Irvine, California College of Medicine (class of 2006). In 2024 Medicare paid $602,561 for 261 patients, and Part D covered 326 of their prescriptions, 73% of them generic. W. L. Gore & Associates, Inc. was the largest of 6 companies reporting payments in 2025, $592.58 in all, mostly food and beverage.

Overview

NPI1639363138
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 28, 2007
Last updated in NPPESFeb 10, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Surgery, Vascular Surgery Primary2086S0129XA102046CA
Surgery208600000XA102046CA

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 - Vascular Surgery (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients261
Services billed1,710 across 73 procedure codes
Paid by Medicare$602,561

Part D prescriptions in 2024

Prescriptions (claims)326 · 480 30-day fills
Patients86
Total drug cost$61,568
Generic share73% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of California, Irvine, California College of Medicine
Graduation year2006
Medicare specialtyVascular Surgery
Secondary specialtiesGeneral Surgery
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$592.58 · 11 payments from 6 companies
  • 2024$1,033 · 22 payments from 7 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$592.58 · 11 payments

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

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