Top billers · Clinical Laboratories · Texas

What are the biggest clinical labs in Texas?

In 2024, 266 clinical laboratories billed Medicare for laboratory testing in Texas: 30,636,631 services and an estimated $753.6M in Medicare payments. Below: the top 5 by service volume, straight from CMS's public billing data.

266
Clinical labs billing Medicare (2024)
30.6M
Services billed
$753.6M
Est. Medicare paid
↓ 12%
Providers vs 2023
The list

The top 5 clinical laboratories in Texas.

Ranked by 2024 Medicare service volume across the family's codes.

#ProviderSpecialtyCityServicesEst. Medicare paid
1Clinical Pathology Laboratories, Inc.Clinical LaboratoryAustin4,285,347$48.3M
2Quest Diagnostics Clinical Laboratories IncClinical LaboratoryIrving3,841,919$47.3M
3Laboratory Corporation Of AmericaClinical LaboratoryDallas3,076,184$35.0M
4Quest Diagnostics Clinical Laboratories IncClinical LaboratoryHouston2,717,055$31.1M
5Laboratory Corporation Of AmericaClinical LaboratoryHouston2,391,996$26.9M

That's the top 5. 261 more clinical laboratories billed laboratory testing in Texas in 2024. The full ranked list, with year-over-year history, group affiliations, and phone numbers, is one search in Prospect 811.

See the full list
The breakdown

What's behind the number.

Top codes in Texas

87798Detection test by nucleic acid for organism, amplified probe technique3,725,818
80053Blood test, comprehensive group of blood chemicals1,881,919
85025Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count1,673,148
80061Blood test, lipids (cholesterol and triglycerides)1,197,661
84443Blood test, thyroid stimulating hormone (tsh)1,013,152
83036Hemoglobin a1c level898,434

Top specialties billing it

Clinical Laboratory266 providers

Where the laboratories are

Houston55 providers
Dallas29 providers
San Antonio16 providers
Austin10 providers
Irving9 providers
City breakdown

The top laboratory testing cities in Texas.

The same 2024 Medicare data, sliced by city: the biggest laboratory testing cities by number of laboratories, in est.-Medicare-paid order.

In 2024 the top city for laboratory testing in Texas by est. Medicare paid was Houston: 55 clinical laboratories billed 8,515,750 services for an estimated $201.1M, led by Quest Diagnostics Clinical Laboratories Inc, with 2,717,055 services (est. $31.1M Medicare paid).

#CityLaboratoriesServicesEst. Medicare paidCity leader (2024)
1Houston558,515,750$201.1MQuest Diagnostics Clinical Laboratories Inc · 2,717,055 services · est. $31.1M
2Dallas295,502,970$138.9MLaboratory Corporation Of America · 3,076,184 services · est. $35.0M
3Richardson9823,156$66.1MAmerican Premier Labs · 406,610 services · est. $42.5M
4Austin104,558,888$53.8MClinical Pathology Laboratories, Inc. · 4,285,347 services · est. $48.3M
5San Antonio16439,592$13.0MLabtech Diagnostics, LLC · 104,082 services · est. $1.4M

City totals are cut from the same public CMS data as everything above: Medicare fee-for-service only, after CMS's under-11-beneficiary suppression, dollars always est. Medicare paid. Where a city shows fewer than 3 laboratories, we show the totals and name no one. Naming is capped by design: up to 5 ranked laboratories above plus at most one leader per city here, and no one else on this page.

Where these numbers come from. Everything on this page is computed from CMS's public Medicare Provider Utilization & Payment data for 2024, the most recent year CMS has released. It covers traditional Medicare fee-for-service only (no commercial insurance, no Medicare Advantage). CMS suppresses any provider-and-code line with fewer than 11 beneficiaries before publishing, so low-volume billers don't appear at all. "Est. Medicare paid" is each billing line's average Medicare payment multiplied by its service count, summed. One service is one billed test or service line as CMS reports it. Prospect 811 organizes public data; it doesn't add to or alter it. Not affiliated with or endorsed by CMS. Full detail on the data page.

This is one code family, one state, one year.

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