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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. Winston Vaughan
⚕️
MDIndividual

Winston Vaughan, M.D.

NPI: 1821182973
Atherton, CA
10 years of data
Otolaryngology
$4.1M
Total Payments
13.1K
Beneficiaries
30.1K
Services
3.39x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$4.1M
Specialty median$80.5K

📋 Key Findings

1Billed $4.1M over 10 years
23.39x markup ratio (above median)
399th percentile in Otolaryngology by payments
414 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $4.1M in total Medicare payments ranks in the 99th percentile of Otolaryngology providers nationally.

66% of their billing comes from a single procedure code (31231 — Diagnostic examination of nasal passages using an endoscope).

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$1.5K$211.136.93x$1.3K$419.2K3.0K1.3K
2015$1.5K$194.007.60x$1.3K$457.3K3.0K1.3K
2016$1.2K$209.295.74x$992.69$461.1K3.3K1.3K
2017$683.78$159.074.30x$524.71$425.6K3.2K1.2K
2018$679.02$154.854.39x$524.17$423.3K3.2K1.2K
2019$665.57$156.844.24x$508.73$435.8K3.3K1.3K
2020$702.99$162.464.33x$540.53$294.4K2.3K1.1K
2021$725.76$168.954.30x$556.81$368.8K2.6K1.2K
2022$660.35$152.624.33x$507.73$402.5K3.0K1.4K
2023$585.92$133.514.39x$452.41$432.7K3.2K1.6K

Top Procedures (14)

31231Diagnostic examination of nasal passages using an endoscope⚠ 3.1x markup
$2.7M
14.1K services$191.96/svc3.06x markup
99213Established patient office or other outpatient visit, typically 15 minutes⚠ 3.5x markup
$844.5K
12.1K services$69.93/svc3.50x markup
99214Established patient office or other outpatient, visit typically 25 minutes⚠ 3.6x markup
$134.6K
1.3K services$107.15/svc3.62x markup
31237Biopsy or removal of nasal polyp or tissue using an endoscope⚠ 4.6x markup
$125.5K
438 services$286.60/svc4.63x markup
70486CT scan of face⚠ 5.6x markup
$116.4K
871 services$133.59/svc5.60x markup
99203New patient office or other outpatient visit, typically 30 minutes⚠ 3.3x markup
$76.8K
805 services$95.41/svc3.28x markup
99204New patient office or other outpatient visit, typically 45 minutes⚠ 4.0x markup
$39.7K
277 services$143.38/svc4.02x markup
31276Exploration of nasal sinus using an endoscope⚠ 7.2x markup
$33.5K
58 services$577.61/svc7.15x markup
31267Removal of nasal sinus tissue using an endoscope⚠ 7.7x markup
$27.0K
122 services$221.40/svc7.70x markup
31255Removal of nasal sinus using an endoscope⚠ 14.3x markup
$6.3K
27 services$233.50/svc14.32x markup
77011Ct scan guidance for stereotactic localization⚠ 4.2x markup
$3.3K
14 services$235.88/svc4.24x markup
61782Computer-assisted procedure outside the brain⚠ 5.5x markup
$2.0K
13 services$155.70/svc5.46x markup
31254Partial removal of nasal sinus using an endoscope⚠ 13.2x markup
$1.6K
12 services$137.25/svc13.21x markup
99212Established patient office or other outpatient visit, 10-19 minutes⚠ 5.8x markup
$551.30
16 services$34.46/svc5.80x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
31231Diagnostic examination of nasal passages using an endoscope14.1K$2.7M$191.963.06x
99213Established patient office or other outpatient visit, typically 15 minutes12.1K$844.5K$69.933.50x
99214Established patient office or other outpatient, visit typically 25 minutes1.3K$134.6K$107.153.62x
31237Biopsy or removal of nasal polyp or tissue using an endoscope438$125.5K$286.604.63x
70486CT scan of face871$116.4K$133.595.60x
99203New patient office or other outpatient visit, typically 30 minutes805$76.8K$95.413.28x
99204New patient office or other outpatient visit, typically 45 minutes277$39.7K$143.384.02x
31276Exploration of nasal sinus using an endoscope58$33.5K$577.617.15x
31267Removal of nasal sinus tissue using an endoscope122$27.0K$221.407.70x
31255Removal of nasal sinus using an endoscope27$6.3K$233.5014.32x
77011Ct scan guidance for stereotactic localization14$3.3K$235.884.24x
61782Computer-assisted procedure outside the brain13$2.0K$155.705.46x
31254Partial removal of nasal sinus using an endoscope12$1.6K$137.2513.21x
99212Established patient office or other outpatient visit, 10-19 minutes16$551.30$34.465.80x

Markup Analysis

Charge-to-Payment Ratio

3.39x

This provider submits charges 3.39 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.39x means for every $100 Medicare pays, this provider initially charges $339. This is higher than the national average.

Location

Atherton, 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

  • • 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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