NEVVI Medicare utilization intelligence

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HART, JOHNM.D. NPI 1497169007 Clinician

Orthopedic Surgery · CEDAR RAPIDS, IA

Specialty Orthopedic Surgery — from billed Medicare claims
Trained Notify me at launch →
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Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 22 codes billed · 5,144 disclosed volume (CY2024 — most recent year in data)
Current groups
member of 3 groups; the volumes below are this clinician's personal volume and are not attributed to any single group
Hospital affiliations
  • BUCHANAN COUNTY HEALTH CENTER · Hospital · CCN 161335
  • JONES REGIONAL MEDICAL CENTER · Hospital · CCN 161306
  • MERCY MEDICAL CENTER - CEDAR RAPIDS · Hospital · CCN 160079
  • REGIONAL MEDICAL CENTER · Hospital · CCN 161343
  • ST LUKES HOSPITAL · Hospital · CCN 160045
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 2025-08
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
J7325 Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
20610 Aspiration and/or injection of fluid from large joint
73030 X-ray of shoulder, minimum of 2 views
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
73562 X-ray of knee, 3 views
36415 Insertion of needle into vein for collection of blood sample
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
80053 Blood test, comprehensive group of blood chemicals
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing
73200 Ct scan of arm without contrast
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
23472 Prosthetic repair of shoulder joint, total shoulder
73221 Mri scan of arm joint without contrast
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
29826 Shaving of part of shoulder bone and repair of ligament using an endoscope
73700 Ct scan of leg without contrast
20985 Computer-assisted surgery for muscle and bone procedure
27447 Replacement of knee joint, both sides of knee
83036 Hemoglobin a1c level

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.