QUEST DIAGNOSTICS LLC is a medical laboratories employer in WOOD DALE, IL. Federal records show 1 OSHA inspection with 2 violations and $6,642 in penalties. All data sourced from public federal enforcement records.
Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: May 1, 2026.
QUEST DIAGNOSTICS LLC
1355 N. MITTEL BOULEVARD, WOOD DALE, IL, 60191
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Federal Criminal Prosecution Record
Inspection Breakdown
Peer Comparison
Labor Relations (NLRB)
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Inspection History
No inspection records found.
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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.
Part of a larger organization
QUEST DIAGNOSTICS LLC is one of 130 establishments in our dataset that roll up under the parent organization Quest Diagnostics. Quest Diagnostics is a SEC public reporter (DGX), with most recent reported revenue of $11.0B.
Federal enforcement records on QUEST DIAGNOSTICS LLC represent activity at this specific establishment. The full enforcement footprint of Quest Diagnostics across all 130 of its tracked locations is viewable on the parent profile.
Other establishments operated by Quest Diagnostics
- QUEST DIAGNOSTICS INCORPORATED — SAN JUAN CAPISTRANO, CA — 3 federal records
- QUEST DIAGNOSTICS — LENEXA, KS — 3 federal records
- Quest Diagnostics — PLANO, TX — 2 federal records
- QUEST DIAGNOSTICS — SCHAUMBURG, IL — 2 federal records
- Quest Diagnostics, Inc. — Chantilly, VA — 2 federal records
- QUEST DIAGNOSTICS, INC. — VALENCIA, CA — 2 federal records
- Quest Diagnostics Inc — Secaucus, NJ — 2 federal records
- QUEST DIAGNOSTICS — NEW LONDON, CT — 2 federal records
- Quest Diagnostics — CYPRESS, TX — 2 federal records
- QUEST DIAGNOSTICS INCORPORATED — LOS ANGELES, CA — 2 federal records
Other employers in Medical Laboratories within IL
- QUEST DIAGNOSTICS — SCHAUMBURG — 2 federal records
- ALVERNO PROVENA HOSPITAL LABORATORIES, INC. — CHICAGO — 1 federal record
- QUEST DIAGNOSTICS — MARYVILLE — 1 federal record
- OSF SAINT FRANCIS MEDICAL CENTER — PEORIA — 1 federal record
- ACL LABORATORIES — ROSEMONT — 1 federal record
- HYDROX CHEMICAL COMPANY, INC — ELGIN — 1 federal record
- MIDWEST DIAGNOSTIC PATHOLOGY, S.C. — PARK RIDGE
- NICL LABORATORIES — PALOS HEIGHTS
- NICL LABORATORIES — CHICAGO
- MOLECULAR IMAGING CHICAGO, LLC — ORLAND PARK
Industry context
Within the medical laboratories industry in IL, QUEST DIAGNOSTICS LLC ranks in the 81th percentile of OSHA violation frequency across 22 comparable establishments. That places this employer among the highest-violation establishments in its peer set.
OSHA penalty totals rank in the 90th percentile of the same peer group.
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 2.6 for the medical laboratories sector, with a Days Away, Restricted, or Transferred (DART) rate of 1.1.
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 24 months.
Frequently Asked Questions
- What is QUEST DIAGNOSTICS LLC's OSHA violation history?
- QUEST DIAGNOSTICS LLC has 1 OSHA inspection on record with 2 violations and $6,642 in total penalties.
- How does QUEST DIAGNOSTICS LLC's safety record compare to its industry?
- QUEST DIAGNOSTICS LLC operates in the medical laboratories industry. The industry average Total Recordable Incident Rate (TRIR) is 2.6.
About this data
This profile aggregates federal enforcement records on QUEST DIAGNOSTICS LLC of WOOD DALE, IL from 17 federal data sources. Records were found in 5 sources: OSHA workplace safety inspections, NLRB labor relations cases, UVA Corporate Prosecution Registry, SEC XBRL companyfacts (parent financials), and BLS industry safety benchmarks. The remaining 12 sources were checked and found no matching records: WHD, MSHA, EPA, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, SEC enforcement.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 1, 2026. QUEST DIAGNOSTICS LLC resolves to the parent rollup Quest Diagnostics, which operates 130 establishments in our dataset.
This profile may be incomplete if QUEST DIAGNOSTICS LLCoperates under multiple legal names, files under variations our entity-matching rules don't yet cover, or maintains records below current matching thresholds. To report a missing record or correction, email corrections@fastdol.com.