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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. Joshua Yamamoto
❤️
MDIndividual

Joshua Yamamoto, M.D.

NPI: 1639172174
Washington, DC
10 years of data
Cardiology
$6.5M
Total Payments
40.6K
Beneficiaries
63.7K
Services
1.36x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$6.5M
Specialty median$193.1K

📋 Key Findings

1Billed $6.5M over 10 years
299th percentile in Cardiology by payments
✓ No flags detected

🔎 Data Analysis

This provider's $6.5M in total Medicare payments ranks in the 99th percentile of Cardiology providers nationally.

Medicare payments to this provider grew 52% 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

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$151.57$107.211.41x$44.36$451.5K4.8K3.4K
2015$141.14$104.601.35x$36.54$454.7K5.7K3.5K
2016$144.87$100.431.44x$44.44$518.7K7.1K4.1K
2017$135.84$92.591.47x$43.25$575.0K7.3K4.7K
2018$148.10$106.851.39x$41.25$676.8K8.0K4.9K
2019$382.28$284.681.34x$97.60$759.3K6.7K4.5K
2020$376.58$296.931.27x$79.65$834.5K5.8K3.8K
2021$350.21$274.521.28x$75.69$851.4K6.9K4.2K
2022$346.90$268.501.29x$78.40$731.5K6.0K3.8K
2023$348.99$265.571.31x$83.42$688.3K5.3K3.7K

Top Procedures (20)

93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function
$1.3M
7.6K services$177.84/svc1.36x markup
33285Insertion of heart rhythm monitor under skin
$1.2M
257 services$4.5K/svc1.27x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$896.5K
14.8K services$60.43/svc1.45x markup
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck
$792.5K
4.7K services$170.35/svc1.36x markup
93351Ultrasound examination and continuous monitoring of the heart performed during rest, exercise, and/or drug-induced stress with interpretation and report
$281.4K
1.3K services$212.05/svc1.35x markup
99354Prolonged office or other outpatient service first hour
$253.8K
2.4K services$103.86/svc1.34x markup
93978Ultrasound scan of vena cava or groin graft or vessel blood flow
$252.3K
1.5K services$170.59/svc1.36x markup
99358Prolonged patient service without direct patient contact first hour
$209.2K
2.3K services$90.97/svc1.31x markup
99497Advance care planning by the physician or other qualified health care professional
$157.6K
2.4K services$66.25/svc1.38x markup
93280Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report
$132.3K
2.5K services$52.09/svc1.46x markup
99490Chronic care management services at least 20 minutes per calendar month
$116.4K
3.4K services$34.13/svc1.37x markup
33208Insertion of new or replacement of permanent pacemaker including upper and lower chamber electrodes
$109.5K
244 services$448.62/svc1.36x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$108.5K
1.3K services$84.35/svc1.41x markup
93000Routine EKG using at least 12 leads including interpretation and report
$83.5K
7.1K services$11.70/svc1.55x markup
99204New patient office or other outpatient visit, typically 45 minutes
$83.0K
655 services$126.77/svc1.43x markup
0295TExternal EKG recording for more than 48 hours up to 21 days with analysis, report, review and interpretation
$82.0K
285 services$287.74/svc1.30x markup
93285Evaluation, testing, and programming adjustment of implantable, patient activated heart recorder system including physician analysis, review, and report
$73.7K
1.8K services$41.33/svc1.44x markup
93610Insertion of temporary pacemaker electrode for diagnostic upper heart pacing
$46.3K
332 services$139.41/svc1.34x markup
93298Remote evaluations of implantable heart recorder system including physician analysis, review, and report up to 30 days
$45.8K
2.1K services$21.72/svc1.33x markup
93299Remote evaluations of implantable heart recorder system including transmissions, technician review, support, and distribution of results up to 30 days
$43.8K
1.2K services$37.06/svc1.39x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function7.6K$1.3M$177.841.36x
33285Insertion of heart rhythm monitor under skin257$1.2M$4.5K1.27x
99213Established patient office or other outpatient visit, typically 15 minutes14.8K$896.5K$60.431.45x
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck4.7K$792.5K$170.351.36x
93351Ultrasound examination and continuous monitoring of the heart performed during rest, exercise, and/or drug-induced stress with interpretation and report1.3K$281.4K$212.051.35x
99354Prolonged office or other outpatient service first hour2.4K$253.8K$103.861.34x
93978Ultrasound scan of vena cava or groin graft or vessel blood flow1.5K$252.3K$170.591.36x
99358Prolonged patient service without direct patient contact first hour2.3K$209.2K$90.971.31x
99497Advance care planning by the physician or other qualified health care professional2.4K$157.6K$66.251.38x
93280Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report2.5K$132.3K$52.091.46x
99490Chronic care management services at least 20 minutes per calendar month3.4K$116.4K$34.131.37x
33208Insertion of new or replacement of permanent pacemaker including upper and lower chamber electrodes244$109.5K$448.621.36x
99214Established patient office or other outpatient, visit typically 25 minutes1.3K$108.5K$84.351.41x
93000Routine EKG using at least 12 leads including interpretation and report7.1K$83.5K$11.701.55x
99204New patient office or other outpatient visit, typically 45 minutes655$83.0K$126.771.43x
0295TExternal EKG recording for more than 48 hours up to 21 days with analysis, report, review and interpretation285$82.0K$287.741.30x
93285Evaluation, testing, and programming adjustment of implantable, patient activated heart recorder system including physician analysis, review, and report1.8K$73.7K$41.331.44x
93610Insertion of temporary pacemaker electrode for diagnostic upper heart pacing332$46.3K$139.411.34x
93298Remote evaluations of implantable heart recorder system including physician analysis, review, and report up to 30 days2.1K$45.8K$21.721.33x
93299Remote evaluations of implantable heart recorder system including transmissions, technician review, support, and distribution of results up to 30 days1.2K$43.8K$37.061.39x

Markup Analysis

Charge-to-Payment Ratio

1.36x

This provider submits charges 1.36 times higher than what Medicare actually pays.

What This Means

A markup ratio of 1.36x means for every $100 Medicare pays, this provider initially charges $136. This is lower than the national average.

Location

Washington, DC

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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