Financial research concept

Diagnostic Information Services Revenue

measures revenue from the core diagnostic information services business.

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.

DIS represented about 97.7% of the two reported business lines
Core lab economics dominate the company revenue base
Segment revenue is not requisition revenue alone
Part of the Diagnostic Laboratory Economics
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Diagnostic Information Services Revenue measures revenue from Quest Diagnostics' core diagnostic information services business.

Quest Diagnostics reported $10.785 billion of Diagnostic Information Services revenue in 2025.

DIS represented about 97.7% of the two reported business lines

Quest also reported $250 million of Diagnostic Solutions revenue.

Adding the two produces approximately $11.035 billion, with Diagnostic Information Services representing about 97.7% and Diagnostic Solutions about 2.3%.

Core lab economics dominate the company revenue base

That concentration explains why requisition volume, revenue per requisition, testing mix, and customer channels are the primary operating drivers.

Use Diagnostic Solutions Revenue to keep the smaller non-core business separate.

Segment revenue is not requisition revenue alone

Diagnostic Information Services includes a broader set of laboratory and diagnostic activities than a simple requisition-count calculation.

A naive $10.785 billion divided by 244 million requisitions gives about $44.20 per requisition as a scale check, not an issuer-reported KPI.

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

Requisition growth and monetizationCurrent relationship
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 RevenueCurrent conceptDiagnostic 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
Access, connectivity, and logistics network
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 Count Diagnostic Lab Patient Service Center Count

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 EconomicsRequisition growth and monetization6 of 6 bridge concepts supportedContinue through this bridge: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

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Compare public companies

Compare Quest's core DIS revenue share with Diagnostic Solutions and requisition-scale economics.

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