NEVVI Medicare utilization intelligence

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RETZER, ELIZABETHM.D. NPI 1639331655 Clinician

Cardiology · MCHENRY, IL

Specialty Cardiology — from billed Medicare claims
Trained Notify me at launch →
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Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 26 codes billed · 8,714 disclosed volume (CY2024 — most recent year in data)
Current groups
Hospital affiliations
  • ADVOCATE GOOD SHEPHERD HOSPITAL · Hospital · CCN 140291
  • ADVOCATE SHERMAN HOSPITAL · Hospital · CCN 140030
  • NORTHWESTERN LAKE FOREST HOSPITAL · Hospital · CCN 140130
  • NORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL · Hospital · CCN 140242
  • NORTHWESTERN MEDICINE MCHENRY · Hospital · CCN 140116
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 2018-10
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
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
93356 Heart muscle strain imaging
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
76376 3d radiographic procedure
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes
93458 Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
93308 Ultrasound of heart, follow-up
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
93321 Ultrasound of heart blood flow, valves and chambers, follow-up
93325 Ultrasound of heart with color-depicted blood flow, rate and valve function
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
99239 Hospital discharge day management, more than 30 minutes
99291 Critical care, first 30-74 minutes
33361 Replacement of aortic valve through the skin and femoral artery
93454 Insertion of tube in coronary artery for diagnosis with review by radiologist
G0405 Electrocardiogram, routine ecg with 12 leads; interpretation and report only, performed as a screening for the initial preventive physical examination
92928 Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more

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.