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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. Suhattai Gamnerdsiri
❤️
MDIndividual

Suhattai Gamnerdsiri, M.D.

NPI: 1073618138
Las Vegas, NV
10 years of data
Cardiology
$6.1M
Total Payments
22.7K
Beneficiaries
95.8K
Services
2.44x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$6.1M
Specialty median$193.1K

📋 Key Findings

1Billed $6.1M over 10 years
22.44x markup ratio (above median)
398th percentile in Cardiology by payments
4Payments surged 51% in 2022
512 procedures with >3x markup
✓ No flags detected

🔎 Data Analysis

This provider's $6.1M in total Medicare payments ranks in the 98th percentile of Cardiology providers nationally.

Medicare payments to this provider grew 72% from 2014 to 2023.

69% of their billing comes from a single procedure code (99232 — Subsequent hospital inpatient care, typically 25 minutes per day).

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

📈

Notable: Payments increased 51% in 2022

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

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$454.82$96.224.73x$358.60$450.8K6.9K2.5K
2015$354.58$81.654.34x$272.93$494.9K7.7K2.2K
2016$382.32$87.324.38x$295.00$621.7K9.6K2.3K
2017$550.77$102.305.38x$448.47$630.4K9.9K2.3K
2018$479.66$89.155.38x$390.51$625.6K10.1K2.4K
2019$551.58$101.075.46x$450.51$535.9K8.7K2.2K
2020$421.19$96.084.38x$325.11$534.5K8.4K2.2K
2021$262.32$77.703.38x$184.62$570.3K9.0K2.3K
2022$293.74$98.302.99x$195.44$862.0K13.5K1.9K
2023$273.57$75.073.64x$198.50$773.2K12.0K2.2K

Top Procedures (20)

99232Subsequent hospital inpatient care, typically 25 minutes per day
$4.2M
72.6K services$57.84/svc2.30x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$893.3K
5.7K services$156.07/svc1.98x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$461.3K
5.6K services$82.24/svc1.87x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$207.3K
4.3K services$48.75/svc2.11x markup
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function⚠ 7.2x markup
$185.9K
2.5K services$73.11/svc7.21x markup
99204New patient office or other outpatient visit, typically 45 minutes
$43.3K
365 services$118.61/svc2.17x markup
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart⚠ 7.5x markup
$29.0K
118 services$245.41/svc7.54x markup
93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report⚠ 8.9x markup
$23.0K
3.4K services$6.69/svc8.94x markup
93460Insertion of catheter in right and left heart for imaging of blood vessels or grafts and left lower heart⚠ 7.8x markup
$17.8K
58 services$306.59/svc7.83x markup
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes⚠ 3.8x markup
$15.3K
182 services$84.00/svc3.83x markup
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes⚠ 3.8x markup
$9.3K
90 services$102.86/svc3.83x markup
93000Routine EKG using at least 12 leads including interpretation and report⚠ 6.5x markup
$6.1K
482 services$12.57/svc6.46x markup
99308Subsequent nursing facility visit, typically 15 minutes per day
$2.3K
41 services$56.31/svc2.80x markup
99305Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes⚠ 3.8x markup
$2.0K
19 services$105.14/svc3.83x markup
93018Exercise or drug-induced heart and blood vessel stress test with EKG monitoring, physician interpretation and report⚠ 3.9x markup
$1.7K
148 services$11.49/svc3.92x markup
93312Insertion of probe in esophagus for heart ultrasound examination including interpretation and report⚠ 4.8x markup
$1.2K
14 services$84.47/svc4.85x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$1.1K
13 services$87.05/svc1.38x markup
93288Evaluation of parameters of single, dual, or multiple lead pacemaker including device connection, recording, and disconnection⚠ 3.5x markup
$508.13
19 services$26.74/svc3.55x markup
93308Follow-up or limited ultrasound examination of heart
$280.56
14 services$20.04/svc2.99x markup
93325Doppler ultrasound study of color-directed heart blood flow, rate, and valve function⚠ 22.7x markup
$125.64
46 services$2.73/svc22.68x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99232Subsequent hospital inpatient care, typically 25 minutes per day72.6K$4.2M$57.842.30x
99223Initial hospital inpatient care, typically 70 minutes per day5.7K$893.3K$156.071.98x
99233Subsequent hospital inpatient care, typically 35 minutes per day5.6K$461.3K$82.241.87x
99213Established patient office or other outpatient visit, typically 15 minutes4.3K$207.3K$48.752.11x
93306Ultrasound examination of heart including color-depicted blood flow rate, direction, and valve function2.5K$185.9K$73.117.21x
99204New patient office or other outpatient visit, typically 45 minutes365$43.3K$118.612.17x
93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart118$29.0K$245.417.54x
93010Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report3.4K$23.0K$6.698.94x
93460Insertion of catheter in right and left heart for imaging of blood vessels or grafts and left lower heart58$17.8K$306.597.83x
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes182$15.3K$84.003.83x
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes90$9.3K$102.863.83x
93000Routine EKG using at least 12 leads including interpretation and report482$6.1K$12.576.46x
99308Subsequent nursing facility visit, typically 15 minutes per day41$2.3K$56.312.80x
99305Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes19$2.0K$105.143.83x
93018Exercise or drug-induced heart and blood vessel stress test with EKG monitoring, physician interpretation and report148$1.7K$11.493.92x
93312Insertion of probe in esophagus for heart ultrasound examination including interpretation and report14$1.2K$84.474.85x
99214Established patient office or other outpatient, visit typically 25 minutes13$1.1K$87.051.38x
93288Evaluation of parameters of single, dual, or multiple lead pacemaker including device connection, recording, and disconnection19$508.13$26.743.55x
93308Follow-up or limited ultrasound examination of heart14$280.56$20.042.99x
93325Doppler ultrasound study of color-directed heart blood flow, rate, and valve function46$125.64$2.7322.68x

Markup Analysis

Charge-to-Payment Ratio

2.44x

This provider submits charges 2.44 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.44x means for every $100 Medicare pays, this provider initially charges $244. This is higher than the national average.

Location

Las Vegas, NV

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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