NEVVI Medicare utilization intelligence

← back

LEE, CHUN YUM.D. NPI 1972860104 Clinician

Cardiology · SAN FRANCISCO, CA

Specialty Cardiology — from billed Medicare claims
Trained GEISEL SCHOOL OF MEDICINE AT DARTMOUTH — medical school, self-reported to CMS
In practice about 14 years since medical school (class of 2012, self-reported to CMS)
Location SAN FRANCISCO, CA · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 31 codes billed · 2,485 disclosed services (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20202026
SUTTER BAY MEDICAL FOUNDATION
2020–2026

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 2023-03

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. 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.

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
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
93458 Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist
93325 Ultrasound of heart with color-depicted blood flow, rate and valve function
99291 Critical care, first 30-74 minutes
93248 Heart rhythm review and interpretation of continous external ekg over 8-15 days
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
99239 Hospital discharge day management, more than 30 minutes
76376 3d radiographic procedure
92978 Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel
93246 Heart rhythm recording of continous external ekg over 8-15 days
93460 Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist
92928 Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch
93321 Ultrasound of heart blood flow, valves and chambers, follow-up
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
93308 Ultrasound of heart, follow-up
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
93351 Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
93451 Insertion of tube in right heart chambers for measurement
93571 Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel
93320 Ultrasound of heart blood flow, valves and chambers
93312 Ultrasound of heart with probe in esophagus, with report
93356 Heart muscle strain imaging
93244 Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days

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.