NEVVI Medicare utilization intelligence

← back

WALLS, MICHAELMD NPI 1497877526 Clinician

Cardiology · INDIANAPOLIS, IN

Specialty Cardiology — from billed Medicare claims
Trained SAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE — medical school, self-reported to CMS
In practice about 22 years since medical school (class of 2004, self-reported to CMS)
Location INDIANAPOLIS, IN · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 24 codes billed · 2,073 disclosed services (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

Group affiliation since 2019

20192026
RUSH MEMORIAL HOSPITAL
2026
ST VINCENT PHYSICIAN SERVICES HOSPITAL AND HEALTH CARE CENTER
2026
ST VINCENT MEDICAL GROUP INC
2019–2026
RUSH MEMORIAL HOSPITAL
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 2022-05

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

Premium

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. Included with Platform.

  • 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.

Notify me at launch → Or see a live example profile →

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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
75572 Ct scan of heart structure with contrast
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect
78431 Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan
78434 Nuclear medicine study of heart muscle blood flow by pet
75574 Ct scan of blood vessels and grafts of heart with contrast
75561 Mri scan of heart before and after contrast
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
99451 Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
75565 Mri scan of blood flow of heart
75563 Mri scan of heart before and after contrast with stress imaging
93325 Ultrasound of heart with color-depicted blood flow, rate and valve function
99238 Hospital discharge day management, 30 minutes or less
93320 Ultrasound of heart blood flow, valves and chambers
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
93016 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
93350 Ultrasound of heart during rest, exercise and/or drug-induced stress with report
93312 Ultrasound of heart with probe in esophagus, with report

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.