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Namdar Kazemi Ashtiani, MD

NPI 1871819888ActiveIndividual· Orthopaedic Surgery· Cincinnati, OH

Orthopaedic Surgery (MD) in Cincinnati, Ohio, trained at George Washington University School of Medicine (class of 2009). 378 Medicare patients in 2024, $99,969 paid; nearly all of their 283 Part D prescriptions were generic (99%). Zimmer Biomet Holdings, Inc. was the largest of 4 companies reporting payments in 2025, $2,895 in all, mostly food and beverage.

Overview

NPI1871819888
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 15, 2010
Last updated in NPPESApr 17, 2024
Certified by providerApr 17, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Orthopaedic Surgery Primary207X00000X35.145894OH

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 - Orthopedic Surgery (OH); Practitioner - Orthopedic Surgery (WA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients378
Services billed1,648 across 72 procedure codes
Paid by Medicare$99,969

Part D prescriptions in 2024

Prescriptions (claims)283 · 290 30-day fills
Patients164
Total drug cost$4,089
Generic share99% of claims

Medicare sources and data years

Education and affiliations

Medical schoolGeorge Washington University School of Medicine
Graduation year2009
Medicare specialtyOrthopedic Surgery

Medical groups

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,895 · 19 payments from 4 companies
  • 2024$6,618 · 43 payments from 7 companies

Top paying companies in 2025

CompanyAmountPayments
Zimmer Biomet Holdings, Inc.$1,51111
Smith+nephew, Inc.$722.616
Arthrex, Inc.$509.771
Stryker Corporation$151.711

What the 2025 payments were for

  • Food and Beverage$1,928 · 14 payments
  • Travel and Lodging$967.40 · 5 payments

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

Other orthopedic surgeons in Cincinnati

All 138 orthopedic surgeons in Cincinnati · All orthopedic surgeons in Ohio