OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
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.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Vince Nguyen
๐Ÿ”ช
MDIndividual

Vince Nguyen, MD

NPI: 1952506511
Houston, TX
10 years of data
Cardiac Surgery
$4.0M
Total Payments
31.1K
Beneficiaries
50.8K
Services
2.87x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$4.0M
Specialty median$102.2K

๐Ÿ“‹ Key Findings

1Billed $4.0M over 10 years
22.87x markup ratio (above median)
399th percentile in Cardiac Surgery by payments
412 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $4.0M in total Medicare payments ranks in the 99th percentile of Cardiac Surgery providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

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$428.70$77.885.50x$350.82$449.5K6.1K3.6K
2015$423.82$82.255.15x$341.57$415.3K5.5K3.1K
2016$441.42$83.505.29x$357.92$354.3K4.7K2.9K
2017$348.24$82.534.22x$265.71$320.1K4.4K2.7K
2018$355.99$78.674.53x$277.32$305.0K4.3K2.7K
2019$535.22$115.434.64x$419.79$429.7K5.3K3.1K
2020$329.02$81.274.05x$247.75$405.4K5.4K3.4K
2021$563.82$125.284.50x$438.54$461.9K5.2K3.3K
2022$356.21$81.234.39x$274.98$435.8K5.3K3.3K
2023$422.54$80.835.23x$341.71$390.4K4.5K2.9K

Top Procedures (20)

99233Subsequent hospital inpatient care, typically 35 minutes per day
$1.1M
13.4K services$84.90/svc1.77x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$664.2K
7.5K services$88.81/svc1.43x markup
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve functionโš  3.6x markup
$455.8K
5.2K services$88.06/svc3.58x markup
99222Initial hospital inpatient care, typically 50 minutes per dayโš  3.2x markup
$423.3K
3.9K services$109.91/svc3.22x markup
78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studiesโš  3.7x markup
$233.0K
935 services$249.24/svc3.74x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$185.8K
3.2K services$58.35/svc1.85x markup
99291Critical care delivery critically ill or injured patient, first 30-74 minutesโš  4.2x markup
$140.5K
786 services$178.70/svc4.21x markup
36475Destruction of insufficient vein of arm or leg, accessed through the skinโš  4.6x markup
$83.8K
75 services$1.1K/svc4.60x markup
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heartโš  13.9x markup
$76.4K
354 services$215.93/svc13.90x markup
99204New patient office or other outpatient visit, typically 45 minutes
$67.9K
563 services$120.66/svc2.64x markup
A9502Technetium tc-99m tetrofosmin, diagnostic, per study doseโš  3.9x markup
$62.9K
561 services$112.12/svc3.86x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$50.6K
817 services$61.97/svc1.71x markup
93970Ultrasound scan of veins of both arms or legs including assessment of compression and functional maneuvers
$37.5K
240 services$156.29/svc2.93x markup
93015Exercise or drug-induced heart and blood vessel stress test with EKG monitoring, physician supervision, interpretation, and report
$32.2K
619 services$52.05/svc2.85x markup
93000Routine EKG using at least 12 leads including interpretation and report
$31.4K
2.5K services$12.71/svc3.00x markup
93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and reportโš  3.8x markup
$21.0K
3.1K services$6.85/svc3.79x markup
96374Injection of drug or substance into a vein for therapy, diagnosis, or preventionโš  4.1x markup
$20.9K
547 services$38.20/svc4.14x markup
93224Heart rhythm tracing, analysis, and interpretation of 48-hour EKGโš  4.7x markup
$20.2K
324 services$62.21/svc4.74x markup
93296Remote evaluations of single, dual, or multiple lead pacemaker or cardioverter-defibrillator transmissions, technician review, support, and distribution of results up to 90 daysโš  4.3x markup
$19.6K
1.0K services$19.35/svc4.26x markup
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neckโš  5.0x markup
$19.2K
121 services$159.02/svc5.00x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99233Subsequent hospital inpatient care, typically 35 minutes per day13.4K$1.1M$84.901.77x
99214Established patient office or other outpatient, visit typically 25 minutes7.5K$664.2K$88.811.43x
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function5.2K$455.8K$88.063.58x
99222Initial hospital inpatient care, typically 50 minutes per day3.9K$423.3K$109.913.22x
78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies935$233.0K$249.243.74x
99232Subsequent hospital inpatient care, typically 25 minutes per day3.2K$185.8K$58.351.85x
99291Critical care delivery critically ill or injured patient, first 30-74 minutes786$140.5K$178.704.21x
36475Destruction of insufficient vein of arm or leg, accessed through the skin75$83.8K$1.1K4.60x
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart354$76.4K$215.9313.90x
99204New patient office or other outpatient visit, typically 45 minutes563$67.9K$120.662.64x
A9502Technetium tc-99m tetrofosmin, diagnostic, per study dose561$62.9K$112.123.86x
99213Established patient office or other outpatient visit, typically 15 minutes817$50.6K$61.971.71x
93970Ultrasound scan of veins of both arms or legs including assessment of compression and functional maneuvers240$37.5K$156.292.93x
93015Exercise or drug-induced heart and blood vessel stress test with EKG monitoring, physician supervision, interpretation, and report619$32.2K$52.052.85x
93000Routine EKG using at least 12 leads including interpretation and report2.5K$31.4K$12.713.00x
93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report3.1K$21.0K$6.853.79x
96374Injection of drug or substance into a vein for therapy, diagnosis, or prevention547$20.9K$38.204.14x
93224Heart rhythm tracing, analysis, and interpretation of 48-hour EKG324$20.2K$62.214.74x
93296Remote evaluations of single, dual, or multiple lead pacemaker or cardioverter-defibrillator transmissions, technician review, support, and distribution of results up to 90 days1.0K$19.6K$19.354.26x
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck121$19.2K$159.025.00x

Markup Analysis

Charge-to-Payment Ratio

2.87x

This provider submits charges 2.87 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.87x means for every $100 Medicare pays, this provider initially charges $287. This is higher than the national average.

Location

Houston, TX

Provider Verification

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

Related

Browse
โ† Back to Provider Directory
State
All providers in TX โ†’
Specialty
All Cardiac Surgery providers โ†’
Tool
Compare this provider โ†’
Analysis
Fraud Watchlist โ†’
Search
Search all providers โ†’

Share This Provider

Share this provider's Medicare payment information

Share:

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.

Believe this data is inaccurate? Dispute this data