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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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Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Mary Decker
๐Ÿ‘ฉโ€โš•๏ธ
O

Mary Decker

NPI: 1518409259
Quincy, IL
10 years of data
Nurse Practitioner
$541.8K
Total Payments
1.6K
Beneficiaries
26.7K
Services
25.34x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$541.8K
Specialty median$25.9K

๐Ÿ“‹ Key Findings

1Billed $541.8K over 10 years
225.34x markup ratio (above median)
3Risk score: 71 โ€” flagged for review
498th percentile in Nurse Practitioner by payments
510 procedures with >3x markup

โš ๏ธ Flagged for Review

Risk Score: 71
  • 44x specialty median spending
  • Markup 25.3x (specialty median: 3.7x)
  • 11x specialty median beneficiaries
  • 123x specialty median services
View Deep Dives โ†’Report Fraud โ†’

Statistical flag only โ€” not an accusation of fraud

๐Ÿ”Ž Data Analysis

This provider's $541.8K in total Medicare payments ranks in the 98th percentile of Nurse Practitioner providers nationally.

Their average markup ratio of 25.34x is significantly above the specialty median of 3.5x.

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

This provider has been statistically flagged with a risk score of 71/100. 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 โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$514.66$20.3125.34x$494.35$37.9K1.9K113
2015$514.66$20.3125.34x$494.35$41.2K2.0K123
2016$514.66$20.3125.34x$494.35$44.4K2.2K133
2017$514.91$20.3225.34x$494.59$47.7K2.3K143
2018$514.91$20.3225.34x$494.59$50.9K2.5K152
2019$514.91$20.3225.34x$494.59$54.2K2.7K162
2020$514.91$20.3225.34x$494.59$57.4K2.8K172
2021$514.91$20.3225.34x$494.59$60.7K3.0K182
2022$514.91$20.3225.34x$494.59$63.9K3.1K191
2023$514.91$20.3225.34x$494.59$67.2K3.3K201

Top Procedures (10)

99213Office/outpatient visit, est patient, lowโš  29.9x markup
$185.0K
9.1K services$20.32/svc29.89x markup
99214Office/outpatient visit, est patient, moderateโš  23.1x markup
$92.5K
4.6K services$20.31/svc23.12x markup
99215Office/outpatient visit, est patient, highโš  26.9x markup
$61.7K
3.0K services$20.32/svc26.94x markup
99223Initial hospital care, high complexityโš  29.6x markup
$46.2K
2.3K services$20.32/svc29.58x markup
99232Subsequent hospital care, moderateโš  23.6x markup
$37.0K
1.8K services$20.32/svc23.64x markup
93000Electrocardiogram, completeโš  24.2x markup
$30.8K
1.5K services$20.31/svc24.17x markup
71046Chest X-ray, 2 viewsโš  22.9x markup
$26.4K
1.3K services$20.31/svc22.89x markup
80053Comprehensive metabolic panelโš  25.4x markup
$23.1K
1.1K services$20.32/svc25.35x markup
85025Complete blood count (CBC)โš  26.2x markup
$20.6K
1.0K services$20.31/svc26.22x markup
36415Venipunctureโš  24.0x markup
$18.5K
911 services$20.31/svc24.02x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99213Office/outpatient visit, est patient, low9.1K$185.0K$20.3229.89x
99214Office/outpatient visit, est patient, moderate4.6K$92.5K$20.3123.12x
99215Office/outpatient visit, est patient, high3.0K$61.7K$20.3226.94x
99223Initial hospital care, high complexity2.3K$46.2K$20.3229.58x
99232Subsequent hospital care, moderate1.8K$37.0K$20.3223.64x
93000Electrocardiogram, complete1.5K$30.8K$20.3124.17x
71046Chest X-ray, 2 views1.3K$26.4K$20.3122.89x
80053Comprehensive metabolic panel1.1K$23.1K$20.3225.35x
85025Complete blood count (CBC)1.0K$20.6K$20.3126.22x
36415Venipuncture911$18.5K$20.3124.02x

Markup Analysis

Charge-to-Payment Ratio

25.34x

This provider submits charges 25.34 times higher than what Medicare actually pays.

What This Means

A markup ratio of 25.34x means for every $100 Medicare pays, this provider initially charges $2534. This is higher than the national average.

Location

Quincy, IL

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

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข 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