NPI Lens

William Aronson, MD

NPI 1639194095ActiveIndividual· Urology· Los Angeles, CA

Urology (MD) in Los Angeles, California, licensed in CA, with an NPI issued in July 2006. Enrolled in Medicare as order and referring only - urology. Janssen Biotech, Inc. was the largest of 12 companies reporting payments in 2025, $81,437 in all, mostly speaking and faculty fees.

Overview

NPI1639194095
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 13, 2006
Last updated in NPPESAug 27, 2008

Specialties and licenses

TaxonomyCodeLicenseState
Urology Primary208800000XG64582CA

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Order and Referring Only - Urology (CA)

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$81,437 · 81 payments from 12 companies
  • 2024$84,207 · 100 payments from 13 companies

Top paying companies in 2025

CompanyAmountPayments
Janssen Biotech, Inc.$25,74534
Bayer Healthcare Pharmaceuticals Inc.$22,89213
Astellas Pharma US Inc$21,02313
Pfizer Inc.$6,4963
Ferring Pharmaceuticals Inc.$2,7904

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$61,223 · 16 payments
  • Travel and Lodging$12,287 · 29 payments
  • Consulting Fee$6,372 · 3 payments
  • Food and Beverage$1,351 · 30 payments
  • Education$203.05 · 3 payments

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

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