Updated October 2026

Largest pathology and laboratory groups in Texas

Medical group directory
Texas
Pathology and laboratory

Groups: 74
Pathology groups: 74
Pathology specialists: 800
Physicians: 840
More than one site: 52

There are 74 pathology and laboratory groups in Texas with a Medicare PAC ID. Community Pathology Associates is the largest, with 99 physicians.

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Community Pathology Associates is the largest pathology and laboratory group in Texas, with 99 physicians

Ranked by physicians with a Texas address linked to each group. Austin Pathology Associates is second with 93, and Methodist Pathology Associates third with 83.

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Pathology and laboratory groups in Texas, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	Community Pathology AssociatesPasadena · 18 sites	Parent on file	99	101	Decision makers
2	Austin Pathology AssociatesGeorgetown · 20 sites	Parent on file	93	96	Decision makers
3	Methodist Pathology AssociatesSugarland · 10 sites	Parent on file	83	84	Decision makers
4	UTHealth Houston Department of Pathology and Laboratory MedicineHouston · 8 sites	Parent on file	66	69	Decision makers
5	Oculus PathologyAustin · 19 sites	Parent on file	61	62	Decision makers
6	ProPathDallas · 8 sites	Parent on file	59	62	Decision makers
7	Pathologists Bio-Medical LaboratoriesDallas · 16 sites	Parent on file	49	53	Decision makers
8	Sagis DiagnosticsHouston · 8 sites	Parent on file	43	45	Decision makers
9	Gulf Coast Pathology ProgramHouston · 10 sites	-	42	42	Decision makers
10	J.S. Wilkenfeld & AssociatesHuntsville · 2 sites	-	34	34	Decision makers
11	Texas Children's HospitalHouston · 7 sites	Parent on file	33	34	Decision makers
12	Pathology Reference LaboratorySan Antonio · 9 sites	Parent on file	32	32	Decision makers
13	Houston Pathology AssociatesHouston · 3 sites	-	31	31	Decision makers
14	Brown PathologyHouston · 6 sites	Parent on file	30	31	Decision makers
15	NTX Pathology Program, PLLCDallas · 12 sites	-	27	28	Decision makers
16	Alliance Pathology ConsultantsPasadena · 4 sites	Parent on file	26	27	Decision makers
17	South Texas Pathology AssociatesSan Antonio · 4 sites	-	25	25	Decision makers
18	AmeriPathIring · 6 sites	Parent on file	23	23	Decision makers
19	Memorial Pathology ConsultantsShenandoah · 10 sites	Parent on file	23	23	Decision makers
20	AmeriPath Lubbock 501A CorporationLubbock · 5 sites	Parent on file	22	22	Decision makers
21	Clear Lake Pathology PartnersWebster · 4 sites	Parent on file	21	21	Decision makers
22	North Dallas Pathology ServicesDallas · 2 sites	Parent on file	12	12	Decision makers
23	Laboratory Physicians AssociatesDallas · 8 sites	-	11	11	Decision makers
24	MD PathologyPlano · 2 sites	Parent on file	11	11	Decision makers
25	MLD PathologyHouston · 4 sites	Parent on file	11	11	Decision makers
26	North Texas Pathology AssociatesRockwall · 4 sites	Parent on file	11	11	Decision makers
27	North Texas Pathology LaboratoriesRowlett · 1 site	Parent on file	11	11	Decision makers
28	PATHlink, LLCEl Paso · 2 sites	Parent on file	10	11	Decision makers
29	Metroplex Pathology AssociatesCoppell · 5 sites	Parent on file	9	10	Decision makers
30	Precision Pathology ServicesSan Antonio · 2 sites	Parent on file	9	9	Decision makers
31	Amarillo Pathology Group & Physicians Preferred LaboratoryAmarillo · 3 sites	Parent on file	7	7	Decision makers
32	North Houston Pathology AssociatesHouston · 6 sites	-	7	7	Decision makers
33	Oculus PathologyCorpus Christi · 3 sites	Parent on file	7	7	Decision makers
34	Brazos Valley PathologyBryan · 5 sites	Parent on file	6	7	Decision makers
35	CorePath LaboratoriesSan Antonio · 4 sites	Parent on file	6	7	Decision makers
36	S J Associated Pathologists, PLLCHouston · 2 sites	Parent on file	6	6	Decision makers
37	Clinical Pathology AssociatesAbilene · 1 site	Parent on file	5	5	Decision makers
38	CorePath LaboratoriesSan Antonio · 3 sites	Parent on file	5	5	Decision makers
39	Diagnostic Pathology AssociatesBeaumont · 1 site	-	5	5	Decision makers
40	Mid Valley PathologyWeslaco · 4 sites	Parent on file	5	5	Decision makers
41	Midland Pathologists PAMidland · 3 sites	Parent on file	5	5	Decision makers
42	Pathology Associates of North TexasWichita Falls · 2 sites	-	5	5	Decision makers
43	Tarrant Pathology AssociatesFort Worth · 2 sites	-	5	5	Decision makers
44	Valley Pathology PAEdinburg · 5 sites	-	5	5	Decision makers
45	Westwater DiagnosticsHouston · 4 sites	Parent on file	5	5	Decision makers
46	Gastro StarSan Antonio · 2 sites	-	4	7	Decision makers
47	Texas Pathology ConsultantsBurleson · 3 sites	-	4	5	Decision makers
48	MCD PathologyDallas · 1 site	Parent on file	4	4	Decision makers
49	PathAdvantageDallas · 1 site	-	3	4	Decision makers
50	Beaumont Pathology Associates, P.A.Beaumont · 3 sites	-	3	3	Decision makers

Showing 1 to 10 of 74 pathology and laboratory groups in Texas

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

Sonic Healthcare has the most physicians in Texas pathology and laboratory groups, with 145 across 7 groups

Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 7 parent organizations have two or more Texas pathology and laboratory groups. Among health systems, Texas Health Resources has the most groups, 2. Each clinician counts once per parent organization.

Parent organizations with the most Texas pathology and laboratory groups
#	Parent organization	Texas groups	Physicians	HCPs
1	Sonic HealthcareTreatment center company	7	145	151
2	Oculus PathologyTreatment center company	2	64	65
3	Quest DiagnosticsTreatment center company	2	41	41
4	Texas Health ResourcesHealth system	2	23	23
5	North Texas Pathology LaboratoriesTreatment center company	2	11	11
6	Corepath LaboratoriesTreatment center company	2	6	7
7	Westwater DiagnosticsTreatment center company	2	6	6

Parent organizations with two or more Texas groups

Sonic HealthcareTreatment center company · 7 Texas pathology and laboratory groups
Austin Pathology AssociatesMedical group · Georgetown
ProPathMedical group · Dallas
5 more Texas groups and their practice sites

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Source: Dmand AI Org Hierarchy Data

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39% of Texas pathology and laboratory groups are independent, with no larger parent organization

A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.

Texas pathology and laboratory groups by ownership

Independent2939%
Health system or hospital912%
Platform or corporate owner23%
Other organization3446%

Sites of care beyond their own offices

Practice at a hospital44

Practice at a skilled nursing facility1

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Source: Dmand AI Org Hierarchy Data

44 Texas pathology and laboratory groups practice at a hospital site, and 1 at a skilled nursing facility

Sites of care linked to each group in the org hierarchy, beyond its own offices. A group can practice at several kinds of site.

Texas pathology and laboratory groups by site of care

Hospitals4459%
Skilled nursing facilities11%

Clinicians in Texas pathology and laboratory groups

Pathology specialists800

All HCPs876

Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data

Dallas has the most pathology and laboratory groups in Texas, with 12

12pathology and laboratory groups in Dallas

12pathology and laboratory groups in Houston

7pathology and laboratory groups in San Antonio

4pathology and laboratory groups in El Paso

2pathology and laboratory groups in Amarillo

2pathology and laboratory groups in Beaumont

More Texas cities with pathology and laboratory groups

Bryan2
Coppell2
Decatur2
Pasadena2
Plano2
Abilene1
Addison1
Arlington1
Austin1
Burleson1
Conroe1
Corpus Christi1
Edinburg1
Fort Worth1
Georgetown1

Source: Doctors and Clinicians National Downloadable File (CMS)

Each Texas pathology and laboratory group profile shows the parent, sites, clinicians and identifiers

Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
Parent organizationThe health system, platform or owner above the groupOn every profile
Every clinician and siteThe full roster and every practice locationWith a free account
Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account

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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data

Sources for the Texas pathology and laboratory group list

Sources for the data on this page
Data on this page	Source
Medical groups, specialties and sites	Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data
Parent organizations and independence	Dmand AI Org Hierarchy Data
Physicians and HCPs	Dmand AI Affiliation Data
Group NPI and PAC ID	NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS)

Data last refreshed October 2026Report an inaccuracy Remove my information

Groups whose main specialty is pathology and laboratory and that have a Medicare PAC ID.

FAQ

Frequently asked questions about pathology and laboratory groups in Texas

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many pathology and laboratory groups are in Texas?

There are 74 pathology and laboratory groups in Texas with a Medicare PAC ID. Between them they have 800 pathology specialists.

Which companies own the most pathology and laboratory groups?

By physicians, Sonic Healthcare, with 145 across 7 groups, followed by Oculus Pathology with 64 and Quest Diagnostics with 41.

How many Texas pathology and laboratory groups are independent?

29, or 39%, have no larger parent organization in the Dmand AI org hierarchy. 9 belong to a health system or hospital and 2 to a physician platform or corporate owner.

Why are pathology and laboratory listed together?

They share one specialty category in the Dmand AI medical group data. Each group is listed under its main specialty.

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