Quest Diagnostics Incorporated
Rate Outlier
Billing above the 90th percentile across multiple procedure codes simultaneously.
Billing above the 90th percentile for 11 procedure codes: 83521 at 3.7× median, 88121 at 2.0× median.
Statistical flags are not proof of wrongdoing. Some entities (government agencies, home care programs) may legitimately bill at high rates. Hospitals, government entities, and large care organizations may legitimately bill at higher rates due to patient acuity, overhead costs, or specialized services. Read our methodology.
Red Flags Explained
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Each flag represents a statistical test that identified unusual billing patterns. Here's what each flag on this provider means in plain English:
Rate Outlier
Rate Outlier means this provider charges above the 90th percentile for multiple different procedure codes simultaneously. While one high-cost code could reflect specialization, consistently high rates across many codes may indicate systematic overbilling.
These flags are statistical indicators only. Many flagged providers have legitimate explanations for their billing patterns. Learn more about our methodology.
Advanced Detection Signals
Additional statistical tests from advanced fraud detection methods
These signals use advanced statistical methods including digit distribution analysis, change-point detection, and market concentration metrics. Learn more.
Compared to Clinical Medical Laboratory Peers
Total spending distribution among 88 providers in this specialty
This provider's total spending of $637.7M is at the 90th percentile among 88 Clinical Medical Laboratory providers.
Above 90th percentile for this specialty — higher spending than 79 of 88 peers
Total Paid
$637.7M
$637,741,417
Total Claims
57.2M
Beneficiaries
54.6M
1.0 claims/patient
Avg Cost/Claim
$11
#81 of 618K providers by total spending(top <0.1%)
🔍 Analysis
Provider Overview
Quest Diagnostics Incorporated is a Clinical Medical Laboratory provider based in Clifton, NJ. From the 2018–2024 period, this provider received $637.7M in Medicaid payments across 57.2M claims.
Why This Matters
This provider received $637.7M in taxpayer-funded Medicaid payments — enough to fund healthcare for approximately 79,717 Medicaid beneficiaries for a full year at average per-enrollee costs.
Monthly Spending Trend
Yearly Spending
Procedure Breakdown
Cost per claim compared to national benchmarks
This provider bills for 30 distinct procedure codes. The top code (U0003 (Infectious disease detection (COVID-19))) accounts for 15% of total spending.
$95.0M
1.3M claims
$74.97
$63.08
Infectious disease detection (COVID-19)
$95.0M
1.3M claims · 14.9%
$32.2M
1.2M claims
$26.75
$35.43
Drug test, presumptive, by chemistry analyzers
$32.2M
1.2M claims · 5.0%
$31.7M
1.7M claims
$19.11
$24.95
Chlamydia detection, nucleic acid, amplified probe
$31.7M
1.7M claims · 5.0%
$31.0M
1.6M claims
$18.92
$23.39
Neisseria gonorrhoeae detection, nucleic acid, amplified probe
$31.0M
1.6M claims · 4.9%
Vitamin D, 25 hydroxy
$21.8M
1.4M claims · 3.4%
Lipid panel
$18.6M
2.9M claims · 2.9%
General health panel
$17.7M
958K claims · 2.8%
$17.2M
507K claims
$33.93
$38.35
Tuberculosis test, cell-mediated immunity
$17.2M
507K claims · 2.7%
Comprehensive metabolic panel
$15.5M
2.8M claims · 2.4%
Antibody, SARS-CoV-2 (COVID-19)
$14.8M
403K claims · 2.3%
$13.0M
1.6M claims
$8.01
$9.87
Thyroid stimulating hormone (TSH)
$13.0M
1.6M claims · 2.0%
$10.6M
896K claims
$11.88
$18.03
HIV-1 antigen with HIV-1 and HIV-2 antibodies
$10.6M
896K claims · 1.7%
$10.6M
315K claims
$33.63
$37.56
Drug test, definitive, 1-7 drug classes
$10.6M
315K claims · 1.7%
$10.2M
648K claims
$15.80
$21.08
Trichomonas vaginalis detection, nucleic acid, amplified probe
$10.2M
648K claims · 1.6%
$10.2M
2.8M claims
$3.67
$4.71
Complete blood count (CBC) with differential, automated
$10.2M
2.8M claims · 1.6%
$9.8M
2.3M claims
$4.31
$5.50
Hemoglobin A1c (glycated hemoglobin)
$9.8M
2.3M claims · 1.5%
$9.2M
429K claims
$21.50
$15.76
Infectious disease detection, COVID-19, antigen
$9.2M
429K claims · 1.4%
$7.8M
400K claims
$19.57
$25.57
HPV detection, high-risk types, nucleic acid
$7.8M
400K claims · 1.2%
$6.7M
25K claims
$271.18
$358.21
Fetal chromosomal aneuploidy genomic sequence analysis
$6.7M
25K claims · 1.1%
$6.7M
201K claims
$33.19
$38.79
Infectious agent detection, amplified probe, multiple organisms
$6.7M
201K claims · 1.0%
$6.5M
29K claims
$222.26
$183.31
CFTR gene analysis, common variants
$6.5M
29K claims · 1.0%
Cyanocobalamin (vitamin B-12)
$6.5M
835K claims · 1.0%
$6.4M
137K claims
$46.95
$40.67
Allergen specific IgE blood test, each allergen
$6.4M
137K claims · 1.0%
$6.0M
140K claims · 0.9%
$5.7M
373K claims
$15.25
$19.06
Cytopathology, cervical or vaginal, ThinPrep
$5.7M
373K claims · 0.9%
$5.5M
42K claims
$130.70
$169.17
Respiratory virus detection, 12-25 targets, nucleic acid
$5.5M
42K claims · 0.9%
Hepatitis C antibody
$5.4M
725K claims · 0.8%
$4.9M
102K claims
$48.01
$35.80
Surgical pathology, gross and microscopic examination
$4.9M
102K claims · 0.8%
$4.4M
589K claims · 0.7%
Free thyroxine level blood test
$4.3M
942K claims · 0.7%
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