Quest Diagnostics LLC Il
NPI 1346389764 · Clinical Medical Laboratory · Schaumburg, IL
Provider details
- NPI number
- 1346389764
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Parent organization
- Quest Diagnostics Incorporated
- Organization subpart
- Yes
- Authorized official
- Leah Timmerman, Vice President(973) 520-2700
- License
- 14D0416537 (IL)
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
75,683 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 26,240 | $36 |
| Screening 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 SupervisionG0145 | 4,968 | $26 |
| Detection Test By Nucleic Acid for Human Papillomavirus (hpv), High-Risk Types87624 | 4,696 | $34 |
| Detection Test By Nucleic Acid for Chlamydia Trachomatis, Amplified Probe Technique87491 | 4,552 | $34 |
| Detection Test By Nucleic Acid for Neisseria Gonorrhoeae (gonorrhoeae Bacteria), Amplified Probe Technique87591 | 4,520 | $34 |
| Detection Test By Nucleic Acid for Trichomonas Vaginalis (genital Parasite), Amplified Probe Technique |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-05
- Last updated
- 2025-01-30
- Certified
- 2025-01-30
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.