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NISHIYAMA, STEVEND.O., PH.D. NPI 1386904605 Clinician

Orthopedic Surgery · LAS VEGAS, NV

Specialty Orthopedic Surgery — from billed Medicare claims
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Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 26 codes billed · 13,268 disclosed volume (CY2024 — most recent year in data)
Current groups
member of 2 groups; the volumes below are this clinician's personal volume and are not attributed to any single group
Hospital affiliations
  • SPRING VALLEY HOSPITAL MEDICAL CENTER · Hospital · CCN 290046
  • VALLEY HOSPITAL MEDICAL CENTER · Hospital · CCN 290021
  • Home health agency — CCN 297102
  • Home health agency — CCN 297115
  • Home health agency — CCN 297143
registry affiliations from the CMS Doctors & Clinicians facility file — an administrative affiliation, not a statement about where care is delivered

Group affiliation since 2019

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Membership spans across every group on this clinician's 2019+ registry record, departed groups included. Membership spans only — no volume is attributed to any group here.

NPPES registry · CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · NPPES record last updated 2019-03
Data year CY2024 CY2023 CY2022  CY2021  CY2020 

Provider overview · all codes · CY2024

The full analytics for this provider

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The full billed-volume analytics for this provider — its position among specialty peers, practice focus, and the payments behind it — computed from the same disclosed Medicare Part B data.

This provider's disclosed submitted charges across all codes were in CY2024. Included with Platform.

  • Charge, service & beneficiary totals — the disclosed scale, all codes
  • Practice profile — focus & reach — top codes by share of services
  • Office vs. facility setting mix — place-of-service code split
  • Peer positioning — service volume — percentile among specialty peers, cohort & year disclosed
  • Peer positioning — code breadth — how many codes billed, vs peers

Peer positioning shows billed-volume and code-breadth positions among specialty peers, not measures of care (a provider's true volume position can only be higher, never lower). All figures disclosed Medicare Part B fee-for-service; volumes are personal to this NPI, not attributed to any group.

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Procedures billed to Medicare Part B (2024)

Medicare Part B FFS · CY2024 · as published by CMS
CodeDescription Volume Beneficiary-episodes Avg charge Avg Medicare payment
J1010 Injection, methylprednisolone acetate, 1 mg
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg
J7325 Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
73562 X-ray of knee, 3 views
73564 X-ray of knee, 4 or more views
73502 X-ray of hip, 2-3 views
20611 Aspiration and/or injection of fluid large joint using ultrasound guidance
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
77077 X-ray of joints, multiple
20610 Aspiration and/or injection of fluid from large joint
73560 X-ray of knee, 1-2 views
20985 Computer-assisted surgery for muscle and bone procedure
27447 Replacement of knee joint, both sides of knee
J1030 Injection, methylprednisolone acetate, 40 mg
99424 Principal care management services for a single high-risk disease, first 30 minutes provided personally by qualified health care professional, per calendar month.
72110 X-ray of lower and sacral spine, minimum of 4 views
27130 Replacement of thigh bone and hip joint with prosthesis
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
72170 X-ray of pelvis, 1-2 views
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
J7326 Hyaluronan or derivative, gel-one, for intra-articular injection, per dose
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
73721 Mri scan of leg joint without contrast

Showing the top 25 of 26 procedures this clinician billed. The full list is part of the premium platform. Notify me at launch →

These are this provider's own Medicare Part B fee-for-service volumes (CMS public data). CMS suppresses rows with fewer than 11 beneficiaries, so low-volume codes may be missing entirely — absence is not zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average charge and average Medicare payment are weighted by service volume across office and facility settings. Volumes on this page are personal to the NPI and are not attributed to any physician group. See Methods & Sources.