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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: 1346389764
Schaumburg, IL
10 years of data
Clinical Laboratory
$47.1M
Total Payments
469
Beneficiaries
989.6K
Services
2.84x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$47.1M
Specialty median$1.9M
Rank #173 of 232 in specialty

๐Ÿ“‹ Key Findings

1Billed $47.1M over 10 years
22.84x markup ratio (above median)
398th percentile in Clinical Laboratory by payments
4Payments surged 197% in 2020
513 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $47.1M in total Medicare payments ranks in the 98th percentile of Clinical Laboratory providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

๐Ÿ“ˆ

Notable: Payments increased 197% in 2020

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 โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$119.31$29.544.04x$89.77$3.2M108.6K129
2015$162.71$46.773.48x$115.94$3.9M82.7K36
2016$165.60$47.933.46x$117.67$3.6M75.1K34
2017$174.89$47.603.67x$127.29$3.2M67.3K36
2018$177.58$45.493.90x$132.09$2.7M60.3K37
2019$173.03$42.574.06x$130.46$2.5M58.1K38
2020$132.70$73.761.80x$58.94$7.3M99.4K38
2021$98.19$49.551.98x$48.64$9.4M190.7K39
2022$112.34$47.622.36x$64.72$7.7M162.8K40
2023$143.51$40.803.52x$102.71$3.5M84.7K42

Top Procedures (20)

U0003Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r
$14.5M
175.4K services$82.53/svc1.21x markup
88305Pathology examination of tissue using a microscope, intermediate complexityโš  3.4x markup
$7.7M
183.3K services$42.19/svc3.36x markup
U0005Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within
$2.8M
113.3K services$24.89/svc1.00x markup
G0145Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, with screening by automated system and manual rescreening under physician supervisionโš  3.5x markup
$2.5M
79.7K services$31.51/svc3.45x markup
87624Detection test by nucleic acid for human papillomavirus (hpv), high-risk typesโš  3.1x markup
$2.3M
56.2K services$41.23/svc3.14x markup
87536Detection test by nucleic acid for hiv-1 virus, quantificationโš  4.0x markup
$2.0M
20.1K services$99.97/svc4.04x markup
87491Detection test by nucleic acid for chlamydia trachomatis, amplified probe technique
$1.8M
44.6K services$40.96/svc2.50x markup
87591Detection test by nucleic acid for neisseria gonorrhoeae (gonorrhoeae bacteria), amplified probe technique
$1.8M
44.3K services$40.96/svc2.51x markup
87522Detection test by nucleic acid for hepatitis c virus, quantificationโš  10.9x markup
$1.4M
26.7K services$51.87/svc10.87x markup
87636Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and bโš  3.6x markup
$1.1M
8.1K services$141.66/svc3.62x markup
88112Cell examination of specimen, selective cellular enhancement techniqueโš  4.0x markup
$810.4K
16.1K services$50.24/svc4.01x markup
81513Measurement of rna of bacteria in vaginal fluid specimen
$776.0K
5.5K services$140.19/svc2.36x markup
88342Special stained specimen slides to examine tissue, initial procedure
$714.0K
10.3K services$69.52/svc2.66x markup
88175Pap test, automated thin layer preparation; automated system and manual rescreeningโš  3.4x markup
$650.4K
20.3K services$31.98/svc3.43x markup
G0416Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any methodโš  5.0x markup
$533.3K
1.6K services$340.31/svc5.02x markup
87661Detection test by nucleic acid for trichomonas vaginalis (genital parasite), amplified probe techniqueโš  4.6x markup
$499.0K
13.5K services$37.09/svc4.64x markup
87801Detection test by nucleic acid for multiple organisms, amplified probe(s) techniqueโš  4.0x markup
$412.5K
6.0K services$69.09/svc4.03x markup
88312Special stained specimen slides to identify organisms including interpretation and report
$369.2K
6.0K services$62.01/svc2.09x markup
G0123Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervisionโš  3.5x markup
$361.4K
14.8K services$24.49/svc3.51x markup
88304Pathology examination of tissue using a microscope, moderately low complexityโš  5.2x markup
$327.9K
11.7K services$27.97/svc5.23x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
U0003Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r175.4K$14.5M$82.531.21x
88305Pathology examination of tissue using a microscope, intermediate complexity183.3K$7.7M$42.193.36x
U0005Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within113.3K$2.8M$24.891.00x
G0145Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, with screening by automated system and manual rescreening under physician supervision79.7K$2.5M$31.513.45x
87624Detection test by nucleic acid for human papillomavirus (hpv), high-risk types56.2K$2.3M$41.233.14x
87536Detection test by nucleic acid for hiv-1 virus, quantification20.1K$2.0M$99.974.04x
87491Detection test by nucleic acid for chlamydia trachomatis, amplified probe technique44.6K$1.8M$40.962.50x
87591Detection test by nucleic acid for neisseria gonorrhoeae (gonorrhoeae bacteria), amplified probe technique44.3K$1.8M$40.962.51x
87522Detection test by nucleic acid for hepatitis c virus, quantification26.7K$1.4M$51.8710.87x
87636Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b8.1K$1.1M$141.663.62x
88112Cell examination of specimen, selective cellular enhancement technique16.1K$810.4K$50.244.01x
81513Measurement of rna of bacteria in vaginal fluid specimen5.5K$776.0K$140.192.36x
88342Special stained specimen slides to examine tissue, initial procedure10.3K$714.0K$69.522.66x
88175Pap test, automated thin layer preparation; automated system and manual rescreening20.3K$650.4K$31.983.43x
G0416Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method1.6K$533.3K$340.315.02x
87661Detection test by nucleic acid for trichomonas vaginalis (genital parasite), amplified probe technique13.5K$499.0K$37.094.64x
87801Detection test by nucleic acid for multiple organisms, amplified probe(s) technique6.0K$412.5K$69.094.03x
88312Special stained specimen slides to identify organisms including interpretation and report6.0K$369.2K$62.012.09x
G0123Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision14.8K$361.4K$24.493.51x
88304Pathology examination of tissue using a microscope, moderately low complexity11.7K$327.9K$27.975.23x

Markup Analysis

Charge-to-Payment Ratio

2.84x

This provider submits charges 2.84 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.84x means for every $100 Medicare pays, this provider initially charges $284. This is higher than the national average.

Location

Schaumburg, 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)
$47.1M
Quest Diagnostics Llc Ilโš ๏ธ
$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
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Quest Diagnostics Llc IlWood Dale, IL$446.2Mโš ๏ธ Flagged
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

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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