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Gregory Joseph Simmons, M.D.

NPI 1194729871ActiveIndividual· Orthopaedic Surgery· Belleville, IL

Orthopaedic Surgery (M.D.) in Belleville, Illinois, trained at Saint Louis University School of Medicine (class of 1995). 326 Medicare patients in 2024, $159,940 paid; nearly all of their 1,719 Part D prescriptions were generic (98%). Polynovo North America LLC was the largest of 4 companies reporting payments in 2025, $74.45 in all, mostly food and beverage.

Overview

NPI1194729871
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 9, 2005
Last updated in NPPESFeb 12, 2021
Certified by providerFeb 12, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Orthopaedic Surgery Primary207X00000X036102208IL

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 - Orthopedic Surgery (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients326
Services billed9,505 across 41 procedure codes
Paid by Medicare$159,940

Part D prescriptions in 2024

Prescriptions (claims)1,719 · 1,788 30-day fills
Patients217
Total drug cost$47,956
Generic share98% of claims

Medicare sources and data years

Education and affiliations

Medical schoolSaint Louis University School of Medicine
Graduation year1995
Medicare specialtyOrthopedic Surgery

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$74.45 · 4 payments from 4 companies
  • 2024$106.80 · 5 payments from 5 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$74.45 · 4 payments

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

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