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Gregory Edward Buck, M.D.

NPI 1144269861ActiveIndividual· Family Medicine· Bremen, IN

Family Medicine (M.D.) in Bremen, Indiana, trained at Indiana University School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $901,354 for 7,896 claims, against $73,477 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 19 companies reporting payments in 2025, $1,056 in all, mostly food and beverage.

Overview

NPI1144269861
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 6, 2006
Last updated in NPPESNov 17, 2023
Certified by providerNov 17, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X01039562IN

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 - Family Practice (IN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients176
Services billed1,348 across 59 procedure codes
Paid by Medicare$73,477

Part D prescriptions in 2024

Prescriptions (claims)7,896 · 20,155 30-day fills
Patients473
Total drug cost$901,354
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year1990
Medicare specialtyFamily Practice

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,056 · 62 payments from 19 companies
  • 2024$969.88 · 51 payments from 15 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,056 · 62 payments

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

Other Family Medicine providers in Bremen

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