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Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
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Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Wen Cheng
๐Ÿ”ช
MDIndividual

Wen Cheng, M.D.

NPI: 1073597043
Los Angeles, CA
10 years of data
Thoracic Surgery
$3.3M
Total Payments
9.7K
Beneficiaries
9.7K
Services
7.53x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$3.3M
Specialty median$71.0K

๐Ÿ“‹ Key Findings

1Billed $3.3M over 10 years
27.53x markup ratio (above median)
399th percentile in Thoracic Surgery by payments
415 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $3.3M in total Medicare payments ranks in the 99th percentile of Thoracic Surgery providers nationally.

Their average markup ratio of 7.53x is significantly above the specialty median of 4.7x.

Medicare payments to this provider grew 53% from 2014 to 2023.

78% of their billing comes from a single procedure code (33361 โ€” Replacement of aortic valve with prosthetic valve, accessed through the skin).

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$1.2K$195.596.14x$1.0K$249.2K641639
2015$1.2K$191.496.39x$1.0K$299.2K786779
2016$1.7K$253.526.83x$1.5K$377.2K1.0K1.0K
2017$2.2K$301.227.35x$1.9K$348.3K1.0K1.0K
2018$2.3K$311.277.39x$2.0K$321.4K1.0K1.0K
2019$1.7K$244.556.90x$1.4K$365.5K1.1K1.1K
2020$1.2K$172.466.92x$1.0K$249.7K857856
2021$2.4K$323.427.55x$2.1K$294.8K974972
2022$1.6K$272.975.99x$1.4K$390.1K1.2K1.2K
2023$2.8K$471.085.91x$2.3K$381.6K1.1K1.1K

Top Procedures (16)

33361Replacement of aortic valve with prosthetic valve, accessed through the skinโš  8.4x markup
$2.5M
3.7K services$682.57/svc8.39x markup
99204New patient office or other outpatient visit, typically 45 minutesโš  3.9x markup
$426.9K
3.8K services$111.39/svc3.85x markup
99221Initial hospital inpatient care, typically 30 minutes per dayโš  4.0x markup
$94.2K
1.1K services$81.99/svc3.97x markup
33418Replacement of aortic valve with prosthetic valve accessed through the skinโš  8.6x markup
$78.9K
93 services$848.82/svc8.64x markup
0646TImplantation of artificial valve between right upper and lower chambers of heart through catheter
$31.3K
30 services$1.0K/svc1.77x markup
99203New patient office or other outpatient visit, typically 30 minutesโš  3.9x markup
$17.3K
264 services$65.48/svc3.93x markup
99222Initial hospital inpatient care, typically 50 minutes per dayโš  3.9x markup
$15.4K
138 services$111.57/svc3.85x markup
99214Established patient office or other outpatient, visit typically 25 minutesโš  3.7x markup
$15.0K
210 services$71.22/svc3.74x markup
33999Other heart surgery procedureโš  8.9x markup
$14.9K
22 services$676.77/svc8.87x markup
0483TInsertion of artificial valve between left heart chambers, accessed through the skinโš  8.1x markup
$14.9K
22 services$675.42/svc8.13x markup
99215Established patient office or other outpatient, visit typically 40 minutesโš  3.9x markup
$7.7K
84 services$92.22/svc3.91x markup
99223Initial hospital inpatient care, typically 70 minutes per dayโš  3.9x markup
$5.2K
31 services$167.60/svc3.92x markup
99233Subsequent hospital inpatient care, typically 35 minutes per dayโš  3.7x markup
$4.0K
45 services$89.29/svc3.74x markup
99205New patient office or other outpatient visit, typically 60 minutesโš  3.8x markup
$1.9K
13 services$143.26/svc3.82x markup
99232Follow-up hospital inpatient care per day, typically 25 minutesโš  3.8x markup
$847.59
14 services$60.54/svc3.79x markup
99202New patient office or other outpatient visit, typically 20 minutesโš  3.8x markup
$480.04
11 services$43.64/svc3.76x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
33361Replacement of aortic valve with prosthetic valve, accessed through the skin3.7K$2.5M$682.578.39x
99204New patient office or other outpatient visit, typically 45 minutes3.8K$426.9K$111.393.85x
99221Initial hospital inpatient care, typically 30 minutes per day1.1K$94.2K$81.993.97x
33418Replacement of aortic valve with prosthetic valve accessed through the skin93$78.9K$848.828.64x
0646TImplantation of artificial valve between right upper and lower chambers of heart through catheter30$31.3K$1.0K1.77x
99203New patient office or other outpatient visit, typically 30 minutes264$17.3K$65.483.93x
99222Initial hospital inpatient care, typically 50 minutes per day138$15.4K$111.573.85x
99214Established patient office or other outpatient, visit typically 25 minutes210$15.0K$71.223.74x
33999Other heart surgery procedure22$14.9K$676.778.87x
0483TInsertion of artificial valve between left heart chambers, accessed through the skin22$14.9K$675.428.13x
99215Established patient office or other outpatient, visit typically 40 minutes84$7.7K$92.223.91x
99223Initial hospital inpatient care, typically 70 minutes per day31$5.2K$167.603.92x
99233Subsequent hospital inpatient care, typically 35 minutes per day45$4.0K$89.293.74x
99205New patient office or other outpatient visit, typically 60 minutes13$1.9K$143.263.82x
99232Follow-up hospital inpatient care per day, typically 25 minutes14$847.59$60.543.79x
99202New patient office or other outpatient visit, typically 20 minutes11$480.04$43.643.76x

Markup Analysis

Charge-to-Payment Ratio

7.53x

This provider submits charges 7.53 times higher than what Medicare actually pays.

What This Means

A markup ratio of 7.53x means for every $100 Medicare pays, this provider initially charges $753. This is higher than the national average.

Location

Los Angeles, CA

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

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Data Sources

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

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