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WERRING, JOHNM.D. NPI 1366428971 Clinician

Diagnostic Radiology · SUMMIT, NJ

Specialty Diagnostic Radiology — from billed Medicare claims
Trained GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE — medical school, self-reported to CMS
In practice about 28 years since medical school (class of 1998, self-reported to CMS)
Location SUMMIT, NJ · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 71 codes billed · 11,246 disclosed services (CY2024 — most recent year in data)
Current groups
member of 11 groups; the volumes below are this clinician's personal volume and are not attributed to any single group

Group affiliation since 2019

20192026
EAST BRUNSWICK OPEN UPRIGHT MRI LLC
2026
RICHARD J CLAPS MD AND ASSOCIATES PA
2025–2026
NEWTON IMAGING P.A.
2024–2026
OPEN MRI RADIOLOGY LLC
2024–2026
WOMEN'S DIAGNOSTIC CENTER, PA
2024–2026
MIDDLETOWN VENTURES ASSOCIATES LLC
2023–2026
RADIOLOGIC ASSOCIATES OF NORTHERN NEW JERSEY, PA
2022–2026
WEST ORANGE RADIOLOGY LLC
2022–2026
DENVILLE DIAGNOSTICS IMAGING AND OPEN MRI LLC
2020–2026
MRI ASSOCIATES OF HACKETTSTOWN LLC
2019–2026
RADIOLOGY ASSOCIATES OF HACKETTSTOWN LLC
2019–2026
95 MADISON IMAGING CENTER AT MORRISTOWN PC
2024–2025
CENTER FOR ADVANCED IMAGING LLC
2024
THE RADIOLOGY GROUP OF NEW JERSEY LLC
2019–2024
HACKETTSTOWN RADIOLOGY ASSOCIATES
2019

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 2009-04

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
71045 X-ray of chest, 1 view
71046 X-ray of chest, 2 views
77067 Screening mammography
77063 Screening 3d breast mammography
70450 Ct scan head or brain without contrast
71250 Ct scan of chest without contrast
74177 Ct scan of abdomen and pelvis with contrast
74176 Ct scan of abdomen and pelvis without contrast
77080 Dxa bone density measurement of hip, pelvis, spine
76700 Complete ultrasound scan of abdomen
76770 Complete ultrasound scan behind abdominal cavity
93970 Ultrasound study of arm or leg veins with compression and maneuvers
76641 Complete ultrasound scan of 1 breast
71260 Ct scan of chest with contrast
75571 Ct scan of heart with evaluation of blood vessel calcium
72125 Ct scan of upper spine without contrast
72110 X-ray of lower and sacral spine, minimum of 4 views
73030 X-ray of shoulder, minimum of 2 views
73630 X-ray of foot, minimum of 3 views
76536 Ultrasound scan of head and neck soft tissue
73502 X-ray of hip, 2-3 views
76981 Ultrasound scan of organ tissue for measuring elasticity
74018 X-ray of abdomen, 1 view
93971 Ultrasound study of one arm or leg veins with compression and maneuvers
71271 Low dose ct scan of chest for lung cancer screening
73564 X-ray of knee, 4 or more views
93880 Ultrasound of both sides of head and neck blood flow
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow
71275 Ct scan of blood vessels of chest with contrast
76857 Limited ultrasound scan of pelvis
73130 X-ray of hand, minimum of 3 views
73562 X-ray of knee, 3 views
72100 X-ray of lower and sacral spine, 2-3 views
76000 Imaging guidance for procedure, 60 minutes or less
73610 X-ray of ankle, minimum of 3 views
76705 Limited ultrasound scan of abdomen
76856 Complete ultrasound scan of pelvis
76982 Ultrasound scan of growth for measuring elasticity, first growth
G0279 Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066)
74178 Ct scan of abdomen and pelvis before and after contrast
70551 Mri scan of brain without contrast
76830 Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina
72131 Ct scan of lower spine without contrast
73552 X-ray of thigh bone, minimum 2 views
74230 Imaging for evaluation of swallowing function
73110 X-ray of wrist, minimum of 3 views
72050 X-ray of upper spine, 4-5 views
76642 Limited ultrasound scan of 1 breast
77065 Diagnostic mammography of 1 breast
78815 Nuclear medicine study from skull base to mid-thigh with ct scan
70486 Ct scan of face without contrast
70498 Ct scan of blood vessels of neck with contrast
72191 Ct scan of blood vessels of pelvis with contrast
73560 X-ray of knee, 1-2 views
76775 Limited ultrasound scan behind abdominal cavity
70496 Ct scan of blood vessels of head with contrast
72070 X-ray of middle spine, 2 views
74220 Single contrast x-ray of esophagus
78306 Nuclear medicine study of bone and/or joint whole body
93925 Ultrasound of leg arteries or artery grafts
72040 X-ray of upper spine, 2-3 views
73590 X-ray of lower leg, 2 views
75574 Ct scan of blood vessels and grafts of heart with contrast
72114 X-ray lower and sacral spine, minimum of 6 views
72170 X-ray of pelvis, 1-2 views
74420 Imaging of urinary tract following injection of a contrast agent
77066 Diagnostic mammography of both breasts
73700 Ct scan of leg without contrast
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts
A9552 Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries

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.