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Earl Magnus Armstrong, MD

NPI 1205944428ActiveIndividual· Internal Medicine, Pulmonary Disease· Washington, DC

Internal Medicine, Pulmonary Disease (MD) in Washington, District of Columbia, trained at University of Chicago, Pritzker School of Medicine (class of 1973). Their prescriptions cost Medicare Part D more than their services did: $124,169 for 818 claims, against $27,356 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 2 companies reporting payments in 2025, $240.19 in all, mostly food and beverage.

Overview

NPI1205944428
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 28, 2006
Last updated in NPPESJul 8, 2007

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 - Pulmonary Disease (DC)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients114
Services billed359 across 14 procedure codes
Paid by Medicare$27,356

Part D prescriptions in 2024

Prescriptions (claims)818 · 1,633 30-day fills
Patients88
Total drug cost$124,169
Generic share61% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Chicago, Pritzker School of Medicine
Graduation year1973
Medicare specialtyPulmonary Disease

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$240.19 · 8 payments from 2 companies
  • 2024$121.66 · 5 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Glaxosmithkline, LLC.$211.687
Astrazeneca Pharmaceuticals LP$28.511

What the 2025 payments were for

  • Food and Beverage$240.19 · 8 payments

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

Other pulmonologists in Washington

All 88 pulmonologists in Washington · All pulmonologists in District of Columbia