Financial research concept

Diagnostic Lab Patient Service Center Count

measures the number of patient service center locations in the diagnostic collection network.

By Lee BaileyPublished Sep 25, 2026

Research context

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Research date: Sep 25, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context: 17 connected conceptsPart of the reviewed Diagnostic Laboratory Economics; issuer definitions remain distinct where disclosed.
Company examples: 1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.

Service centers were about 30% of the broader access network
Dedicated centers and other collection settings serve different access needs
Location count is not center productivity
Part of the Diagnostic Laboratory Economics
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Diagnostic Lab Patient Service Center Count measures dedicated patient service center locations in Quest Diagnostics' collection network.

Quest Diagnostics reported approximately 2,400 locations in its 2025 disclosures.

Service centers were about 30% of the broader access network

Quest also reported approximately 8,000 patient access points.

The 2,400 patient service centers represented about 30% of that broader footprint, leaving roughly 70% in other access arrangements.

Dedicated centers and other collection settings serve different access needs

Patient service centers are physical Quest locations, while the broader access-point definition includes additional collection settings.

Use Diagnostic Lab Patient Access Point Count to avoid treating the two counts as interchangeable.

Location count is not center productivity

Traffic, staffing, hours, payer mix, and specimen complexity can differ substantially by site.

The count therefore cannot be converted directly into requisitions or revenue.

Primary source: Quest Diagnostics 2025 Form 10-K.

Part of the Diagnostic Laboratory Economics

Connect requisition growth and monetization, test and customer-channel mix, and the collection, connectivity, payer-access, and logistics network that supports a large diagnostic laboratory platform.

Browse the full operating model in Company Analysis →

Where this concept fits

Access, connectivity, and logistics networkCurrent relationship
Patient access points and service centers describe specimen-collection reach, connected clinician and hospital accounts plus insured-lives access describe ordering and payer-network reach, and daily logistics stops plus courier vehicles show the physical transport infrastructure connecting collection sites to laboratories.
Diagnostic Lab Connected Clinician and Hospital Accounts Diagnostic Lab Courier Vehicle Count Diagnostic Lab Daily Logistics Stop Count Diagnostic Lab Insured Lives Access Diagnostic Lab Patient Access Point CountDiagnostic Lab Patient Service Center CountCurrent concept
Requisition growth and monetization
Test requisition volume is the core activity base, reported and organic requisition growth separate acquisition-driven from underlying volume changes, and revenue per requisition shows monetization across price, payer mix, business mix, test mix, and tests per requisition. Core diagnostic information services and diagnostic solutions revenue keep the two business groups distinct.
Diagnostic Information Services Revenue Diagnostic Lab Organic Requisition Volume Growth Diagnostic Lab Requisition Volume Growth Diagnostic Lab Revenue per Requisition Change Diagnostic Lab Test Requisition Volume Diagnostic Solutions Revenue
Test complexity and customer-channel mix
Gene-based and esoteric testing plus anatomic pathology show important testing-complexity mix, while physician, hospital, and other diagnostic-information-services revenue shares show where demand originates. Test mix and customer channel are separate dimensions of the revenue model.
Diagnostic Lab Anatomic Pathology Revenue Mix Diagnostic Lab Gene-Based and Esoteric Testing Revenue Mix Diagnostic Lab Hospital Channel Revenue Mix Diagnostic Lab Other Information Services Revenue Mix Diagnostic Lab Physician Channel Revenue Mix

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

DGXOpen operating-model research →17 of 17 reviewed concepts in Diagnostic Laboratory EconomicsAccess, connectivity, and logistics network6 of 6 bridge concepts supportedContinue through this bridge:Diagnostic Lab Connected Clinician and Hospital Accounts Diagnostic Lab Courier Vehicle Count Diagnostic Lab Daily Logistics Stop Count Diagnostic Lab Insured Lives Access Diagnostic Lab Patient Access Point Count

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Compare public companies

Compare dedicated service centers with the broader access-point network and its additional collection settings.

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