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GUNN, TYLERM.D. NPI 1083023923 Clinician

Thoracic Surgery · CHICAGO, IL

Specialty Thoracic Surgery — from billed Medicare claims
Trained UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE — medical school, self-reported to CMS
In practice about 12 years since medical school (class of 2014, self-reported to CMS)
Location CHICAGO, IL · NPPES registered location
Active in data Billed Medicare 2023–2024 (2 consecutive years)
Scale 9 codes billed · 528 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

20222026
THE UNIVERSITY OF CHICAGO MEDICAL CENTER
2026
UNIVERSITY OF CHICAGO
2026
CEDARS-SINAI MEDICAL CENTER
2022–2026
CEDARS-SINAI MEDICAL CARE FOUNDATION
2023

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 2025-12

Year: 2024 · 2023

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. 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
99291 Critical care, first 30-74 minutes
93750 Evaluation of lower heart chamber assist device
33949 Daily management of ecmo external vein to artery blood circulation in heart and lungs using a pump
33944 Preparation of donor heart for transplantation
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
33945 Transplantation of donor heart
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
33241 Removal of defibrillator
33244 Removal of defibrillator electrodes through vein

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.