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Johnny O. Alexander, MD

NPI 1649439043ActiveIndividual· Radiology, Diagnostic Radiology· Chicago, IL

Radiology, Diagnostic Radiology (MD) in Chicago, Illinois, trained at Saint Louis University School of Medicine (class of 2002). Medicare paid $88,990 for services to 1,876 patients in 2024. Janssen Pharmaceuticals, Inc reported $18.86 in payments in 2025, mostly food and beverage.

Overview

NPI1649439043
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 2, 2008
Last updated in NPPESJul 28, 2025
Certified by providerJul 28, 2025

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 - Diagnostic Radiology (DC); Practitioner - Diagnostic Radiology (FL); Practitioner - Diagnostic Radiology (GA); Practitioner - Diagnostic Radiology (MD); Practitioner - Diagnostic Radiology (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,876
Services billed2,704 across 146 procedure codes
Paid by Medicare$88,990

Medicare sources and data years

Education and affiliations

Medical schoolSaint Louis University School of Medicine
Graduation year2002
Medicare specialtyDiagnostic Radiology

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$18.86 · 1 payment from 1 company
  • 2024$135.52 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Janssen Pharmaceuticals, Inc$18.861

What the 2025 payments were for

  • Food and Beverage$18.86 · 1 payment

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

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