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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.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Quest Diagnostics Llc Il
๐Ÿ”ฌ
Organization

Quest Diagnostics Llc Il

NPI: 1881630614
Wood Dale, IL
10 years of data
Clinical Laboratory
$446.2M
Total Payments
3.9K
Beneficiaries
34.4M
Services
6.65x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$446.2M
Specialty median$1.9M
Rank #22 of 232 in specialty

๐Ÿ“‹ Key Findings

1Billed $446.2M over 10 years
26.65x markup ratio (above median)
3Risk score: 85 โ€” flagged for review
499th percentile in Clinical Laboratory by payments
518 procedures with >3x markup

โš ๏ธ Flagged for Review

Risk Score: 85
  • 389x specialty median spending
  • Markup 9.6x (specialty median: 2.5x)
  • 1618x specialty median beneficiaries
  • 1026x 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 $446.2M in total Medicare payments ranks in the 99th percentile of Clinical Laboratory providers nationally.

Their average markup ratio of 6.65x is significantly above the specialty median of 3.7x.

This provider has been statistically flagged with a risk score of 85/100. 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$79.72$12.966.15x$66.76$32.3M2.5M365
2015$79.58$13.126.07x$66.46$48.4M3.7M403
2016$81.53$13.486.05x$68.05$48.3M3.6M391
2017$87.32$14.356.09x$72.97$48.5M3.4M379
2018$86.55$14.296.06x$72.26$54.9M3.8M398
2019$89.39$13.056.85x$76.34$49.5M3.8M396
2020$88.97$12.876.91x$76.10$40.9M3.2M391
2021$88.54$11.987.39x$76.56$43.1M3.6M395
2022$88.59$11.597.64x$77.00$40.0M3.4M394
2023$92.33$12.037.67x$80.30$40.2M3.3M388

Top Procedures (20)

80061Blood test, lipids (cholesterol and triglycerides)โš  9.7x markup
$38.3M
2.5M services$15.15/svc9.68x markup
84443Blood test, thyroid stimulating hormone (tsh)โš  6.7x markup
$37.8M
1.9M services$19.50/svc6.70x markup
80053Blood test, comprehensive group of blood chemicalsโš  7.0x markup
$37.7M
3.6M services$10.54/svc7.03x markup
82306Vitamin d-3 levelโš  7.1x markup
$30.3M
887.9K services$34.12/svc7.14x markup
85025Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell countโš  4.8x markup
$25.0M
2.8M services$9.02/svc4.84x markup
G0480Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms
$17.2M
161.5K services$106.81/svc2.11x markup
83036Hemoglobin a1c levelโš  6.5x markup
$16.1M
1.4M services$11.26/svc6.53x markup
36415Insertion of needle into vein for collection of blood sampleโš  6.1x markup
$11.9M
3.4M services$3.52/svc6.13x markup
80307Testing for presence of drug, by chemistry analyzers
$10.4M
157.3K services$65.92/svc2.63x markup
83970Parathormone (parathyroid hormone) levelโš  5.0x markup
$10.1M
216.4K services$46.66/svc4.96x markup
82607Cyanocobalamin (vitamin b-12) levelโš  6.9x markup
$9.8M
566.7K services$17.31/svc6.89x markup
84153Psa (prostate specific antigen) measurement, totalโš  6.8x markup
$7.0M
327.6K services$21.30/svc6.76x markup
80048Blood test, basic group of blood chemicals (calcium, total)โš  6.2x markup
$6.5M
712.7K services$9.17/svc6.19x markup
87086Bacterial colony count, urineโš  6.3x markup
$6.4M
684.6K services$9.41/svc6.35x markup
84439Thyroxine (thyroid chemical), freeโš  14.0x markup
$6.1M
589.0K services$10.39/svc13.96x markup
87088Bacterial urine cultureโš  3.3x markup
$5.6M
595.8K services$9.44/svc3.26x markup
82746Folic acid level, serumโš  7.0x markup
$5.0M
298.2K services$16.81/svc6.98x markup
82728Ferritin (blood protein) levelโš  7.2x markup
$4.7M
301.8K services$15.52/svc7.23x markup
G0103Prostate cancer screening; prostate specific antigen test (psa)โš  6.7x markup
$4.6M
211.9K services$21.65/svc6.73x markup
87799Detection test by nucleic acid for organism, quantificationโš  6.0x markup
$3.9M
79.8K services$49.16/svc5.96x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
80061Blood test, lipids (cholesterol and triglycerides)2.5M$38.3M$15.159.68x
84443Blood test, thyroid stimulating hormone (tsh)1.9M$37.8M$19.506.70x
80053Blood test, comprehensive group of blood chemicals3.6M$37.7M$10.547.03x
82306Vitamin d-3 level887.9K$30.3M$34.127.14x
85025Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count2.8M$25.0M$9.024.84x
G0480Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms161.5K$17.2M$106.812.11x
83036Hemoglobin a1c level1.4M$16.1M$11.266.53x
36415Insertion of needle into vein for collection of blood sample3.4M$11.9M$3.526.13x
80307Testing for presence of drug, by chemistry analyzers157.3K$10.4M$65.922.63x
83970Parathormone (parathyroid hormone) level216.4K$10.1M$46.664.96x
82607Cyanocobalamin (vitamin b-12) level566.7K$9.8M$17.316.89x
84153Psa (prostate specific antigen) measurement, total327.6K$7.0M$21.306.76x
80048Blood test, basic group of blood chemicals (calcium, total)712.7K$6.5M$9.176.19x
87086Bacterial colony count, urine684.6K$6.4M$9.416.35x
84439Thyroxine (thyroid chemical), free589.0K$6.1M$10.3913.96x
87088Bacterial urine culture595.8K$5.6M$9.443.26x
82746Folic acid level, serum298.2K$5.0M$16.816.98x
82728Ferritin (blood protein) level301.8K$4.7M$15.527.23x
G0103Prostate cancer screening; prostate specific antigen test (psa)211.9K$4.6M$21.656.73x
87799Detection test by nucleic acid for organism, quantification79.8K$3.9M$49.165.96x

Markup Analysis

Charge-to-Payment Ratio

6.65x

This provider submits charges 6.65 times higher than what Medicare actually pays.

What This Means

A markup ratio of 6.65x means for every $100 Medicare pays, this provider initially charges $665. This is higher than the national average.

Location

Wood Dale, IL

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 Clinical Laboratory providers in IL for peer comparison.

Quest Diagnostics Llc Il (you)
$446.2M
Tempus Ai, Inc.โš ๏ธ
$213.4M
Chicago Clinical Laboratories, Ltdโš ๏ธ
$66.5M
Lifescan Labs Of Illinois, Llc
$61.6M
Chicago Care Lab Services Llcโš ๏ธ
$56.7M
Vcare Testing Centre Corp.
$55.7M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Tempus Ai, Inc.Chicago, IL$213.4Mโš ๏ธ Flagged
Chicago Clinical Laboratories, LtdNorthbrook, IL$66.5Mโš ๏ธ Flagged
Lifescan Labs Of Illinois, LlcSkokie, IL$61.6Mโœ“ Clear
Chicago Care Lab Services LlcChicago, IL$56.7Mโš ๏ธ Flagged
Vcare Testing Centre Corp.Chicago, IL$55.7Mโœ“ Clear

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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.

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