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Steven Keita Nishiyama, D.O., PH.D.

NPI 1386904605ActiveIndividual· Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery· Las Vegas, NV

Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery (D.O., PH.D.) with Desert Orthopaedic Center Ltd and 1 other group, practicing in Las Vegas, Nevada. 632 Medicare patients in 2024, $352,042 paid; nearly all of their 1,782 Part D prescriptions were generic (99%). Smith+nephew, Inc. was the largest of 2 companies reporting payments in 2025, $237,328 in all, mostly consulting fees. Lists Spring Valley Hospital Medical Center and 1 other hospital as hospital affiliations.

Overview

NPI1386904605
StatusActive
Entity typeIndividual
CredentialD.O., PH.D.
Sole proprietorNo
NPI issuedMay 21, 2012
Last updated in NPPESMar 27, 2019

Specialties and licenses

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 (NV)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients632
Services billed13,480 across 65 procedure codes
Paid by Medicare$352,042

Part D prescriptions in 2024

Prescriptions (claims)1,782 · 1,845 30-day fills
Patients427
Total drug cost$25,820
Generic share99% of claims

Medicare sources and data years

Education and affiliations

Graduation year2012
Medicare specialtyOrthopedic Surgery

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$237,328 · 135 payments from 2 companies
  • 2024$253,610 · 160 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Smith+nephew, Inc.$237,178133
Stryker Corporation$149.952

What the 2025 payments were for

  • Consulting Fee$98,681 · 24 payments
  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$97,350 · 14 payments
  • Travel and Lodging$37,098 · 49 payments
  • Food and Beverage$4,199 · 48 payments

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

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