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HOWENSTEIN, MATTHEWM.D. NPI 1548419336 Clinician

Diagnostic Radiology · GRAFTON, WI

Specialty Diagnostic Radiology — from billed Medicare claims
Trained VANDERBILT UNIVERSITY SCHOOL OF MEDICINE — medical school, self-reported to CMS
In practice about 21 years since medical school (class of 2005, self-reported to CMS)
Location GRAFTON, WI · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 26 codes billed · 844 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
  • AURORA MEDICAL CENTER · Hospital · CCN 520207
  • AURORA MEDICAL CENTER KENOSHA · Hospital · CCN 520189
  • AURORA MEDICAL CENTER SHEBOYGAN COUNTY · Hospital · CCN 520035
  • AURORA ST LUKES MEDICAL CENTER · Hospital · CCN 520138
  • WEST ALLIS MEMORIAL HOSPITAL · Hospital · CCN 520139
registry affiliations from the CMS Doctors & Clinicians facility file — an administrative affiliation, not a statement about where care is delivered

Group affiliation since 2019

20192026
LAKESHORE MEDICAL CLINIC LLC
2026
AURORA ADVANCED HEALTHCARE, INC.
2019–2026
AURORA MEDICAL GROUP, INC.
2019–2026
LAKESHORE MEDICAL CLINIC LLC
2019–2024

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 2023-08
Data year CY2024 CY2023 CY2022  CY2021  CY2020 

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 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
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes
76937 Ultrasonic guidance for blood vessel access
77001 Fluoroscopic guidance for insertion or removal of central vein access device
76705 Limited ultrasound scan of abdomen
93880 Ultrasound of both sides of head and neck blood flow
93922 Ultrasound study of arm and leg arteries
36558 Insertion of tunneled central venous tube for infusion (5 years or older)
76942 Ultrasonic guidance for needle placement
36561 Insertion of central venous tube with port (5 years or older)
93971 Ultrasound study of one arm or leg veins with compression and maneuvers
36247 Insertion of tube into abdominal, pelvic, or leg artery, initial third order branch
93926 Ultrasound of one leg arteries or artery grafts
93925 Ultrasound of leg arteries or artery grafts
49083 Drainage of fluid from abdominal cavity using imaging guidance
93970 Ultrasound study of arm or leg veins with compression and maneuvers
38222 Biopsy and aspiration of bone marrow sample for diagnosis
74170 Ct scan of abdomen before and after contrast
77002 Fluoroscopic guidance for needle placement
36589 Removal of tunneled central venous tube
37243 Occlusion of growths or obstructed vessels with review by radiologist
77012 Review by radiologist of ct guidance for needle placement
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow
32555 Aspiration of fluid from chest cavity using imaging guidance
76770 Complete ultrasound scan behind abdominal cavity
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts

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.