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GREZAFFI, JOHNMD NPI 1659575173 Clinician

Diagnostic Radiology · BATON ROUGE, LA

Specialty Diagnostic Radiology — from billed Medicare claims
Trained LOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS — medical school, self-reported to CMS
In practice about 21 years since medical school (class of 2005, self-reported to CMS)
Location BATON ROUGE, LA · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 48 codes billed · 9,465 disclosed services (CY2024 — most recent year in data)
Current groups
member of 6 groups; the volumes below are this clinician's personal volume and are not attributed to any single group

Group affiliation since 2019

20192026
BATON ROUGE GENERAL PHYSICIANS INC
2026
NEUROMEDICAL CENTER
2024–2026
NORTH OAKS MEDICAL CENTER LLC
2024–2026
OCHSNER CLINIC LLC
2023–2026
BATON ROUGE CLINIC, A MEDICAL CORPORATION
2019–2026
BATON ROUGE RADIOLOGY GROUP INC
2019–2026

The roster archive begins in 2019, so a span starting at 2019 may reach back further. 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 2017-03

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

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The billed-volume positioning, practice focus, and economics behind this provider — computed on the same disclosed Medicare Part B data.

This provider's disclosed Medicare payments across all codes were in CY2024. Unlock to see the figure.

  • Payment, 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
  • Volume over five years — discrete yearly counts, no rate
  • 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 Services Beneficiary-episodes Avg charge Avg Medicare payment
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml
71046 X-ray of chest, 2 views
71045 X-ray of chest, 1 view
70450 Ct scan head or brain without contrast
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes
74177 Ct scan of abdomen and pelvis with contrast
71250 Ct scan of chest without contrast
71260 Ct scan of chest with contrast
74176 Ct scan of abdomen and pelvis without contrast
74018 X-ray of abdomen, 1 view
77012 Review by radiologist of ct guidance for needle placement
73502 X-ray of hip, 2-3 views
72125 Ct scan of upper spine without contrast
73030 X-ray of shoulder, minimum of 2 views
74178 Ct scan of abdomen and pelvis before and after contrast
71275 Ct scan of blood vessels of chest with contrast
74174 Ct scan of blood vessels of abdomen and pelvis with contrast
73564 X-ray of knee, 4 or more views
72110 X-ray of lower and sacral spine, minimum of 4 views
73630 X-ray of foot, minimum of 3 views
70551 Mri scan of brain without contrast
71271 Low dose ct scan of chest for lung cancer screening
70486 Ct scan of face without contrast
72100 X-ray of lower and sacral spine, 2-3 views
38222 Biopsy and aspiration of bone marrow sample for diagnosis
73130 X-ray of hand, minimum of 3 views
77001 Fluoroscopic guidance for insertion or removal of central vein access device
36561 Insertion of central venous tube with port (5 years or older)
72050 X-ray of upper spine, 4-5 views
73560 X-ray of knee, 1-2 views
76377 3d radiographic procedure with computerized image postprocessing
72197 Mri scan of pelvis before and after contrast
70553 Mri scan of brain before and after contrast
73552 X-ray of thigh bone, minimum 2 views
75635 Ct scan of abdominal aorta and both leg arteries with contrast
76705 Limited ultrasound scan of abdomen
32408 Core needle biopsy of lung or center cavity of chest (mediastinum), accessed through skin
70220 X-ray of paranasal sinus, minimum of 3 views
74220 Single contrast x-ray of esophagus
72072 X-ray of middle spine, 3 views
75571 Ct scan of heart with evaluation of blood vessel calcium
32550 Insertion of indwelling tube for drainage of lung fluid
71101 X-ray of ribs on side of body, minimum of 3 views
72141 Mri scan of upper spinal canal without contrast
74170 Ct scan of abdomen before and after contrast
74183 Mri scan of abdomen before and after contrast
75989 Review by radiologist of image for drainage of fluid
76770 Complete ultrasound scan behind abdominal cavity

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.