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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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Methodology•Download Data
  1. Home
  2. Providers
  3. Christopher Nguyen
❤️
MDIndividual

Christopher Nguyen, M.D.

NPI: 1003825035
Shenandoah, TX
10 years of data
Cardiology
$4.8M
Total Payments
26.3K
Beneficiaries
39.1K
Services
3.83x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$4.8M
Specialty median$193.1K

📋 Key Findings

1Billed $4.8M over 10 years
23.83x markup ratio (above median)
398th percentile in Cardiology by payments
4Payments surged 212% in 2023
514 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $4.8M in total Medicare payments ranks in the 98th percentile of Cardiology providers nationally.

Medicare payments to this provider grew 639% from 2014 to 2023.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

📈

Notable: Payments increased 212% in 2023

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

Submitted Charges vs. Medicare Payments

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

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$694.19$151.664.58x$542.53$217.5K2.5K1.9K
2015$538.10$131.674.09x$406.43$343.2K3.2K2.4K
2016$521.01$126.044.13x$394.97$334.0K3.5K2.5K
2017$530.16$130.324.07x$399.84$322.4K3.3K2.3K
2018$481.77$112.714.27x$369.06$374.4K3.8K2.6K
2019$464.87$110.064.22x$354.81$361.7K4.3K2.6K
2020$513.35$123.484.16x$389.87$320.8K3.6K2.2K
2021$493.57$131.613.75x$361.96$433.8K4.1K2.5K
2022$1.2K$295.994.19x$943.06$515.8K3.9K2.5K
2023$1.1K$263.324.27x$860.22$1.6M7.0K5.0K

Top Procedures (20)

78431Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan⚠ 4.1x markup
$960.8K
531 services$1.8K/svc4.10x markup
A9555Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries
$659.8K
1.1K services$602.02/svc1.93x markup
99214Established patient office or other outpatient, visit typically 25 minutes⚠ 3.0x markup
$654.8K
8.1K services$80.59/svc3.03x markup
78492Nuclear medicine study heart muscle at rest and/or stress multiple studies⚠ 3.6x markup
$589.5K
568 services$1.0K/svc3.61x markup
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function⚠ 7.0x markup
$391.1K
3.0K services$129.35/svc6.98x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$195.3K
2.4K services$81.43/svc2.34x markup
99215Established patient office or other outpatient, visit typically 40 minutes⚠ 3.0x markup
$131.3K
1.1K services$114.83/svc3.03x markup
33285Insertion of heart rhythm monitor under skin⚠ 4.9x markup
$128.4K
65 services$2.0K/svc4.94x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$122.2K
776 services$157.48/svc2.57x markup
99204New patient office or other outpatient visit, typically 45 minutes⚠ 3.4x markup
$122.2K
1.1K services$113.75/svc3.42x markup
93000Routine EKG using at least 12 leads including interpretation and report⚠ 6.8x markup
$92.7K
8.1K services$11.44/svc6.75x markup
93229Heart rhythm tracing, computer analysis, physician prescribed transmission of patient-triggered events greater than 24-hour EKG up to 30 days⚠ 3.9x markup
$87.9K
159 services$552.96/svc3.90x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$79.3K
1.4K services$56.51/svc2.62x markup
78434Nuclear medicine study of heart muscle blood flow by pet⚠ 4.6x markup
$58.2K
426 services$136.71/svc4.61x markup
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart⚠ 10.6x markup
$53.9K
251 services$214.70/svc10.56x markup
J2785Injection, regadenoson, 0.1 mg⚠ 3.3x markup
$45.1K
1.0K services$44.65/svc3.27x markup
99213Established patient office or other outpatient visit, typically 15 minutes⚠ 3.1x markup
$43.4K
740 services$58.69/svc3.07x markup
99222Initial hospital inpatient care, typically 50 minutes per day
$42.3K
394 services$107.25/svc2.56x markup
99205New patient office or other outpatient visit, typically 60 minutes
$39.6K
246 services$160.84/svc2.94x markup
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck⚠ 4.3x markup
$37.8K
257 services$147.18/svc4.34x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
78431Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan531$960.8K$1.8K4.10x
A9555Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries1.1K$659.8K$602.021.93x
99214Established patient office or other outpatient, visit typically 25 minutes8.1K$654.8K$80.593.03x
78492Nuclear medicine study heart muscle at rest and/or stress multiple studies568$589.5K$1.0K3.61x
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function3.0K$391.1K$129.356.98x
99233Subsequent hospital inpatient care, typically 35 minutes per day2.4K$195.3K$81.432.34x
99215Established patient office or other outpatient, visit typically 40 minutes1.1K$131.3K$114.833.03x
33285Insertion of heart rhythm monitor under skin65$128.4K$2.0K4.94x
99223Initial hospital inpatient care, typically 70 minutes per day776$122.2K$157.482.57x
99204New patient office or other outpatient visit, typically 45 minutes1.1K$122.2K$113.753.42x
93000Routine EKG using at least 12 leads including interpretation and report8.1K$92.7K$11.446.75x
93229Heart rhythm tracing, computer analysis, physician prescribed transmission of patient-triggered events greater than 24-hour EKG up to 30 days159$87.9K$552.963.90x
99232Subsequent hospital inpatient care, typically 25 minutes per day1.4K$79.3K$56.512.62x
78434Nuclear medicine study of heart muscle blood flow by pet426$58.2K$136.714.61x
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart251$53.9K$214.7010.56x
J2785Injection, regadenoson, 0.1 mg1.0K$45.1K$44.653.27x
99213Established patient office or other outpatient visit, typically 15 minutes740$43.4K$58.693.07x
99222Initial hospital inpatient care, typically 50 minutes per day394$42.3K$107.252.56x
99205New patient office or other outpatient visit, typically 60 minutes246$39.6K$160.842.94x
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck257$37.8K$147.184.34x

Markup Analysis

Charge-to-Payment Ratio

3.83x

This provider submits charges 3.83 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.83x means for every $100 Medicare pays, this provider initially charges $383. This is higher than the national average.

Location

Shenandoah, TX

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

  • • Centers for Medicare & Medicaid Services (CMS)
  • • Medicare Provider Utilization and Payment Data (2014-2023)
  • • 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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