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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. Nelson Gwinn
❤️
MDIndividual

Nelson Gwinn, M.D.

NPI: 1922087071
Dothan, AL
10 years of data
Cardiology
$11.8M
Total Payments
127.2K
Beneficiaries
213.4K
Services
2.78x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$11.8M
Specialty median$193.1K

📋 Key Findings

1Billed $11.8M over 10 years
22.78x markup ratio (above median)
399th percentile in Cardiology by payments
485 services/day — unusually high
58 procedures with >3x markup

This provider averages 85 services per working day

Based on 213.4K total services over 10 years (250 working days/year). Learn about impossible service volumes →

🔎 Data Analysis

This provider's $11.8M in total Medicare payments ranks in the 99th percentile of Cardiology providers nationally.

Averaging 85 services per working day raises questions about billing patterns.

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$228.73$74.393.07x$154.34$1.2M23.4K14.5K
2015$201.94$70.422.87x$131.52$1.3M24.5K15.9K
2016$354.88$122.772.89x$232.11$906.6K14.5K10.9K
2017$230.87$70.753.26x$160.12$1.2M21.4K15.2K
2018$209.20$61.483.40x$147.72$1.1M22.9K13.7K
2019$219.74$68.423.21x$151.32$1.3M26.2K13.7K
2020$227.55$74.333.06x$153.22$1.0M20.7K11.0K
2021$216.30$74.212.91x$142.09$1.2M20.3K11.8K
2022$255.64$78.623.25x$177.02$1.2M19.3K10.3K
2023$269.55$84.123.20x$185.43$1.2M20.3K10.3K

Top Procedures (20)

93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function⚠ 3.1x markup
$2.1M
16.8K services$121.91/svc3.12x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$1.9M
24.6K services$75.62/svc2.61x markup
78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies
$1.8M
5.9K services$310.58/svc2.59x markup
99490Chronic care management services at least 20 minutes per calendar month
$1.2M
31.7K services$37.88/svc2.31x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$680.1K
14.6K services$46.73/svc2.03x markup
A9500Technetium tc-99m sestamibi, diagnostic, per study dose
$456.8K
5.6K services$82.01/svc2.79x markup
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck
$414.5K
3.2K services$128.77/svc2.51x markup
93000Routine EKG using at least 12 leads including interpretation and report⚠ 4.8x markup
$412.7K
38.6K services$10.70/svc4.80x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$386.0K
7.2K services$53.48/svc2.24x markup
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart⚠ 3.4x markup
$288.8K
1.0K services$280.97/svc3.35x markup
93015Exercise or drug-induced heart and blood vessel stress test with EKG monitoring, physician supervision, interpretation, and report⚠ 3.8x markup
$257.6K
5.6K services$45.90/svc3.77x markup
A9505Thallium tl-201 thallous chloride, diagnostic, per millicurie⚠ 3.6x markup
$243.5K
4.5K services$53.66/svc3.57x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$180.3K
1.2K services$144.67/svc2.11x markup
J2785Injection, regadenoson, 0.1 mg
$173.8K
4.0K services$43.99/svc2.23x markup
99203New patient office or other outpatient visit, typically 30 minutes
$134.8K
1.9K services$70.37/svc2.46x markup
99204New patient office or other outpatient visit, typically 45 minutes
$130.5K
1.1K services$114.43/svc2.51x markup
93459Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart⚠ 3.4x markup
$113.8K
413 services$275.50/svc3.44x markup
93793Anti-clotting management for patient taking warfarin⚠ 3.0x markup
$79.2K
9.6K services$8.22/svc3.05x markup
83880Natriuretic peptide (heart and blood vessel protein) level
$75.8K
1.8K services$40.98/svc2.18x markup
92928Catheter insertion of stents in major coronary artery or branch, accessed through the skin⚠ 3.3x markup
$74.1K
184 services$402.49/svc3.32x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function16.8K$2.1M$121.913.12x
99214Established patient office or other outpatient, visit typically 25 minutes24.6K$1.9M$75.622.61x
78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies5.9K$1.8M$310.582.59x
99490Chronic care management services at least 20 minutes per calendar month31.7K$1.2M$37.882.31x
99213Established patient office or other outpatient visit, typically 15 minutes14.6K$680.1K$46.732.03x
A9500Technetium tc-99m sestamibi, diagnostic, per study dose5.6K$456.8K$82.012.79x
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck3.2K$414.5K$128.772.51x
93000Routine EKG using at least 12 leads including interpretation and report38.6K$412.7K$10.704.80x
99232Subsequent hospital inpatient care, typically 25 minutes per day7.2K$386.0K$53.482.24x
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart1.0K$288.8K$280.973.35x
93015Exercise or drug-induced heart and blood vessel stress test with EKG monitoring, physician supervision, interpretation, and report5.6K$257.6K$45.903.77x
A9505Thallium tl-201 thallous chloride, diagnostic, per millicurie4.5K$243.5K$53.663.57x
99223Initial hospital inpatient care, typically 70 minutes per day1.2K$180.3K$144.672.11x
J2785Injection, regadenoson, 0.1 mg4.0K$173.8K$43.992.23x
99203New patient office or other outpatient visit, typically 30 minutes1.9K$134.8K$70.372.46x
99204New patient office or other outpatient visit, typically 45 minutes1.1K$130.5K$114.432.51x
93459Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart413$113.8K$275.503.44x
93793Anti-clotting management for patient taking warfarin9.6K$79.2K$8.223.05x
83880Natriuretic peptide (heart and blood vessel protein) level1.8K$75.8K$40.982.18x
92928Catheter insertion of stents in major coronary artery or branch, accessed through the skin184$74.1K$402.493.32x

Markup Analysis

Charge-to-Payment Ratio

2.78x

This provider submits charges 2.78 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.78x means for every $100 Medicare pays, this provider initially charges $278. This is higher than the national average.

Location

Dothan, AL

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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