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James B. Chapman, M.D.

NPI 1124030002ActiveIndividual· Internal Medicine, Interventional Cardiology· Grove, OK

Internal Medicine, Interventional Cardiology (M.D.) in Grove, Oklahoma, trained at Indiana University School of Medicine (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $620,470 for 3,625 claims, against $217,424 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 9 companies reporting payments in 2025, $712.32 in all, mostly food and beverage.

Overview

NPI1124030002
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 12, 2006
Last updated in NPPESDec 31, 2014

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Interventional Cardiology Primary207RI0011X29613OK

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 - Interventional Cardiology (OK)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,347
Services billed3,672 across 70 procedure codes
Paid by Medicare$217,424

Part D prescriptions in 2024

Prescriptions (claims)3,625 · 8,662 30-day fills
Patients738
Total drug cost$620,470
Generic share82% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year1980
Medicare specialtyInterventional Cardiology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$712.32 · 33 payments from 9 companies
  • 2024$751.80 · 32 payments from 10 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$712.32 · 33 payments

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

Other interventional cardiologists in Grove

All interventional cardiologists in Oklahoma