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Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
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Methodology•Download Data
  1. Home
  2. Providers
  3. Shahryar Ashouri
🎗️
MDI

Shahryar Ashouri, M.D.

NPI: 1609946169
Westlake Village, CA
10 years of data
Hematology-Oncology
$2.2M
Total Payments
4.1K
Beneficiaries
165.3K
Services
24.63x
Markup Ratio

Peer Comparison

92th
percentile in specialty
This provider$2.2M
Specialty median$339.6K

📋 Key Findings

1Billed $2.2M over 10 years
224.63x markup ratio (above median)
3Risk score: 68 — flagged for review
492th percentile in Hematology-Oncology by payments
566 services/day — unusually high
610 procedures with >3x markup

⚠️ Flagged for Review

Risk Score: 68
  • 34x specialty median spending
  • Markup 24.6x (specialty median: 4.0x)
  • 10x specialty median beneficiaries
  • 198x specialty median services
View Deep Dives →Report Fraud →

Statistical flag only — not an accusation of fraud

This provider averages 66 services per working day

Based on 165.3K total services over 10 years (250 working days/year). Learn about impossible service volumes →

🔎 Data Analysis

This provider's $2.2M in total Medicare payments ranks in the 92th percentile of Hematology-Oncology providers nationally.

Their average markup ratio of 24.63x is significantly above the specialty median of 3.5x.

Averaging 66 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 77% from 2014 to 2023.

This provider has been statistically flagged with a risk score of 68/100. Statistical flags are not accusations of fraud.

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$331.52$13.4624.63x$318.06$155.7K11.6K293
2015$331.52$13.4624.63x$318.06$169.1K12.6K318
2016$331.52$13.4624.63x$318.06$182.4K13.6K343
2017$331.52$13.4624.63x$318.06$195.8K14.5K368
2018$331.52$13.4624.63x$318.06$209.1K15.5K393
2019$331.52$13.4624.63x$318.06$222.5K16.5K418
2020$331.52$13.4624.63x$318.06$235.8K17.5K443
2021$331.52$13.4624.63x$318.06$249.2K18.5K468
2022$331.52$13.4624.63x$318.06$262.5K19.5K493
2023$331.52$13.4624.63x$318.06$275.8K20.5K518

Top Procedures (10)

99213Office/outpatient visit, est patient, low⚠ 22.2x markup
$759.5K
56.4K services$13.46/svc22.19x markup
99214Office/outpatient visit, est patient, moderate⚠ 27.2x markup
$379.8K
28.2K services$13.46/svc27.19x markup
99215Office/outpatient visit, est patient, high⚠ 25.5x markup
$253.2K
18.8K services$13.46/svc25.51x markup
99223Initial hospital care, high complexity⚠ 28.4x markup
$189.9K
14.1K services$13.46/svc28.39x markup
99232Subsequent hospital care, moderate⚠ 27.8x markup
$151.9K
11.3K services$13.46/svc27.81x markup
93000Electrocardiogram, complete⚠ 26.5x markup
$126.6K
9.4K services$13.46/svc26.47x markup
71046Chest X-ray, 2 views⚠ 27.7x markup
$108.5K
8.1K services$13.46/svc27.72x markup
80053Comprehensive metabolic panel⚠ 29.3x markup
$94.9K
7.1K services$13.46/svc29.28x markup
85025Complete blood count (CBC)⚠ 25.4x markup
$84.4K
6.3K services$13.46/svc25.36x markup
36415Venipuncture⚠ 27.9x markup
$76.0K
5.6K services$13.46/svc27.93x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99213Office/outpatient visit, est patient, low56.4K$759.5K$13.4622.19x
99214Office/outpatient visit, est patient, moderate28.2K$379.8K$13.4627.19x
99215Office/outpatient visit, est patient, high18.8K$253.2K$13.4625.51x
99223Initial hospital care, high complexity14.1K$189.9K$13.4628.39x
99232Subsequent hospital care, moderate11.3K$151.9K$13.4627.81x
93000Electrocardiogram, complete9.4K$126.6K$13.4626.47x
71046Chest X-ray, 2 views8.1K$108.5K$13.4627.72x
80053Comprehensive metabolic panel7.1K$94.9K$13.4629.28x
85025Complete blood count (CBC)6.3K$84.4K$13.4625.36x
36415Venipuncture5.6K$76.0K$13.4627.93x

Markup Analysis

Charge-to-Payment Ratio

24.63x

This provider submits charges 24.63 times higher than what Medicare actually pays.

What This Means

A markup ratio of 24.63x means for every $100 Medicare pays, this provider initially charges $2463. This is higher than the national average.

Location

Westlake Village, CA

Provider Verification

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

Similar Providers

Other Hematology-Oncology providers in CA for peer comparison.

Shahryar Ashouri (you)
$2.2M
Luke Dreisbach, M.D.
$77.2M
Sachin Gupta, M.D.
$55.1M
Ravi Rao, MD⚠️
$49.1M
Michael Sherman, M.D., PHD
$38.9M
Nerses Tchekmedyian, M.D.
$38.0M
Show detailed table ▾
ProviderLocationTotal PaymentsStatus
Luke Dreisbach, M.D.Rancho Mirage, CA$77.2M✓ Clear
Sachin Gupta, M.D.Fresno, CA$55.1M✓ Clear
Ravi Rao, MDFresno, CA$49.1M⚠️ Flagged
Michael Sherman, M.D., PHDWalnut Creek, CA$38.9M✓ Clear
Nerses Tchekmedyian, M.D.Irvine, CA$38.0M✓ Clear

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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.

Believe this data is inaccurate? Dispute this data