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Gregory Delorenzo, MD

NPI 1508812538ActiveIndividual· Internal Medicine, Rheumatology· Cincinnati, OH

Internal Medicine, Rheumatology (MD) in Cincinnati, Ohio, trained at Ohio State University College of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $4,833,441 for 5,655 claims, against $695,003 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $279,669 in all, mostly speaking and faculty fees.

Overview

NPI1508812538
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMay 25, 2006
Last updated in NPPESJan 6, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Rheumatology Primary207RR0500X35056885OH

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 Practitioner - Rheumatology (OH)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients460
Services billed58,420 across 47 procedure codes
Paid by Medicare$695,003

Part D prescriptions in 2024

Prescriptions (claims)5,655 · 10,702 30-day fills
Patients761
Total drug cost$4,833,441
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Medical schoolOhio State University College of Medicine
Graduation year1987
Medicare specialtyRheumatology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$279,669 · 596 payments from 18 companies
  • 2024$158,772 · 518 payments from 18 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$150,926219
Janssen Biotech, Inc.$60,352104
Ucb, Inc.$31,46469
Genzyme Corporation$14,97812
Amgen Inc.$10,16349

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$218,294 · 74 payments
  • Travel and Lodging$39,385 · 81 payments
  • Consulting Fee$10,980 · 4 payments
  • Food and Beverage$10,754 · 432 payments
  • Education$255.58 · 5 payments

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

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