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Jeffrey R. Horvath, M.D.

NPI 1588761811ActiveIndividual· Internal Medicine, Rheumatology· Springfield, IL

Internal Medicine, Rheumatology (M.D.) in Springfield, Illinois, trained at Southern Illinois University School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $3,814,759 for 3,358 claims, against $833,028 paid for services in 2024. Amgen Inc. was the largest of 11 companies reporting payments in 2025, $13,640 in all, mostly speaking and faculty fees.

Overview

NPI1588761811
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedSep 20, 2006
Last updated in NPPESMay 3, 2011

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Rheumatology Primary207RR0500X036-097710IL

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 - Rheumatology (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients462
Services billed59,350 across 57 procedure codes
Paid by Medicare$833,028

Part D prescriptions in 2024

Prescriptions (claims)3,358 · 7,270 30-day fills
Patients553
Total drug cost$3,814,759
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Medical schoolSouthern Illinois University School of Medicine
Graduation year1993
Medicare specialtyRheumatology
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$13,640 · 135 payments from 11 companies
  • 2024$34,433 · 175 payments from 12 companies

Top paying companies in 2025

CompanyAmountPayments
Amgen Inc.$6,58729
Abbvie Inc.$3,62232
Histosonics, Inc.$1,7233
Ucb, Inc.$591.8519
Novartis Pharmaceuticals Corporation$408.1822

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$8,775 · 6 payments
  • Food and Beverage$3,141 · 126 payments
  • Travel and Lodging$1,723 · 3 payments

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

Other Internal Medicine, Rheumatology providers in Springfield

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