Updated October 2026

Medical groups in Houston, TX

Medical group directory
Houston, Texas

Medical groups: 979
Multi-specialty: 193
Single-specialty: 786
More than one site: 435
100+ physicians: 24

There are 979 medical groups in Houston with a Medicare PAC ID. UT Physicians is the largest, with 2,036 Texas physicians, followed by Texas Children's Hospital with 1,857. 73% of Houston groups are independent.

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UT Physicians is the largest medical group in Houston, with 2,036 physicians

Ranked by physicians with a Texas address linked to each group based in Houston. Texas Children's Hospital is second with 1,857, and Baylor College of Medicine third with 1,657. 24 Houston groups have 100 or more physicians.

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Medical groups in Houston, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	UT PhysiciansHouston · 214 sites	Parent on file	2,036	3,216	Decision makers
2	Texas Children's HospitalHouston · 130 sites	Parent on file	1,857	2,923	Decision makers
3	Baylor College of MedicineHouston · 98 sites	Parent on file	1,657	2,089	Decision makers
4	Physicians Referral ServiceHouston · 42 sites	Parent on file	1,522	3,022	Decision makers
5	Houston Methodist Specialty Physician GroupHouston · 199 sites	Parent on file	1,521	2,368	Decision makers
6	US Anesthesia PartnersHouston · 285 sites	Parent on file	1,411	3,504	Decision makers
7	Baylor MedicineHouston · 93 sites	Parent on file	1,357	2,268	Decision makers
8	Kelsey-Seybold ClinicHouston · 134 sites	Parent on file	1,186	1,733	Decision makers
9	Houston MethodistHouston · 101 sites	Parent on file	1,005	1,562	Decision makers
10	Memorial Hermann Medical GroupHouston · 139 sites	Parent on file	897	1,121	Decision makers
11	Memorial Hermann Hospital Based Physician GroupHouston · 19 sites	Parent on file	291	459	Decision makers
12	OBGYN Medical Center AssociatesHouston · 182 sites	Parent on file	260	602	Decision makers
13	Legacy Community HealthHouston · 39 sites	Parent on file	193	432	Decision makers
14	OrthoLoneStarHouston · 49 sites	-	181	419	Decision makers
15	Houston Healthcare AssociatesHouston · 48 sites	-	151	284	Decision makers
16	UTHealth Houston Neurosciences, Texas Medical CenterHouston · 35 sites	Parent on file	149	263	Decision makers
17	Village MedicalHouston · 47 sites	Parent on file	146	273	Decision makers
18	Texans AnesthesiaHouston · 35 sites	-	145	481	Decision makers
19	Baylor St. Luke’s Medical GroupHouston · 41 sites	Parent on file	131	214	Decision makers
20	Houston Radiology Associated (HRA)Houston · 16 sites	-	113	125	Decision makers
21	Northwest Anesthesiology & Pain ServicesHouston · 43 sites	Parent on file	109	247	Decision makers
22	Synergy Radiology AssociatesHouston · 9 sites	Parent on file	106	112	Decision makers
23	Memorial MRI & DiagnosticHouston · 30 sites	Parent on file	105	108	Decision makers
24	Specialty Associates of West Houston PLLCHouston · 74 sites	Parent on file	103	174	Decision makers
25	UT PhysiciansHouston · 20 sites	Parent on file	92	127	Decision makers
26	Advanced Medical GroupHouston · 9 sites	Parent on file	90	121	Decision makers
27	Medical Clinic of Houston, LLPHouston · 4 sites	-	89	94	Decision makers
28	The Harris Center for Mental Health and IDDHouston · 11 sites	Parent on file	86	258	Decision makers
29	PsychPlusHouston · 112 sites	Parent on file	79	411	Decision makers
30	Altus Community HealthcareHouston · 6 sites	Parent on file	74	83	Decision makers
31	Memorial Hermann Medical GroupHouston · 35 sites	Parent on file	71	134	Decision makers
32	UTHealth Houston Department of Pathology and Laboratory MedicineHouston · 8 sites	Parent on file	66	69	Decision makers
33	Rose Imaging SpecialistsHouston · 74 sites	Parent on file	66	66	Decision makers
34	PsychPlusHouston · 73 sites	Parent on file	65	369	Decision makers
35	Next Level Urgent CareHouston · 26 sites	Parent on file	63	356	Decision makers
36	Trumen Physicians + AssociatesHouston · 13 sites	Parent on file	60	164	Decision makers
37	Texas ENT SpecialistsHouston · 41 sites	Parent on file	58	147	Decision makers
38	Northwest Anesthesiology & Pain ServicesHouston · 18 sites	Parent on file	56	147	Decision makers
39	HOPE ClinicHouston · 6 sites	Parent on file	56	78	Decision makers
40	Houston Cardiovascular AssociatesHouston · 24 sites	Parent on file	54	99	Decision makers
41	Trumen Physicians and AssociatesHouston · 12 sites	Parent on file	50	130	Decision makers
42	East Houston Medical CenterHouston · 2 sites	Parent on file	48	51	Decision makers
43	Intensivist Medicine Services of TX, PLLCHouston · 6 sites	-	46	79	Decision makers
44	Sagis DiagnosticsHouston · 8 sites	Parent on file	43	45	Decision makers
45	Gulf Coast Pathology ProgramHouston · 10 sites	-	42	42	Decision makers
46	Houston Anesthesia ServicesHouston · 14 sites	Parent on file	41	104	Decision makers
47	Fondren Orthopedic GroupHouston · 10 sites	-	41	59	Decision makers
48	Round Table Physicians GroupHouston · 4 sites	Parent on file	41	42	Decision makers
49	Houston Eye AssociatesHouston · 15 sites	-	40	43	Decision makers
50	Houston Metro UrologyHouston · 13 sites	-	36	43	Decision makers

Showing 1 to 10 of 979 medical groups in Houston

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

The University of Texas System has the most physicians in Houston medical groups, with 3,654 across 6 groups

Dmand AI maps every Houston medical group to its parent organization, up to the health system or platform at the top. 33 parent organizations have two or more Houston medical groups. Among health systems, Houston Methodist has the most groups, 8. Each clinician counts once per parent organization.

Parent organizations with the most Houston medical groups
#	Parent organization	Houston groups	Physicians	HCPs
1	The University of Texas SystemAcademic health system	6	3,654	6,396
2	Baylor College of MedicineAcademic health system	2	2,308	3,531
3	Texas Children's HospitalHealth system	2	1,888	2,955
4	Houston MethodistHealth system	8	1,602	2,508
5	UnitedHealth GroupDiversified health company	19	1,373	2,012
6	Memorial Hermann Health SystemHealth system	6	1,262	1,715
7	Privia HealthPhysician practice platform	3	260	603
8	Radiology PartnersPhysician practice platform	3	194	200
9	WalgreensManagement company	4	151	278
10	Northwest Anesthesiology and Pain ServicesPhysician staffing company	3	110	254

Top 10 of 33 parent organizations with two or more Houston groups

The University of Texas SystemAcademic health system · 6 Houston medical groups
UT PhysiciansMulti-specialty group · 214 sites
Physicians Referral ServiceMulti-specialty group · 42 sites
4 more Houston groups and their practice sites

See every medical group, site and clinician under The University of Texas System

Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.

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Source: Dmand AI Org Hierarchy Data

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Dmand AI maps the owners, administrators and physician leaders at each of the 979 Houston medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

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73% of Houston medical 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.

Houston medical groups by ownership

Independent71073%
Health system or hospital465%
Platform or corporate owner11712%
Community or government263%
Other organization808%

Source: Dmand AI Org Hierarchy Data

121 Houston medical groups practice at a hospital site

Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.

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

Primary care groups are the most common medical groups in Houston, with 405

Each group is counted once, under its main specialty. Behavioral and mental health groups are second, with 136, and 193 Houston groups are multi-specialty.

Source: Dmand AI Professional Profile Data

28,339 Texas HCPs work in Houston medical groups, 15,489 of them physicians

Each clinician is counted once, across every Houston group they are linked to. Only clinicians with a Texas address are counted.

HCPs in Houston medical groups by type

Physicians (MD, DO)15,48955%
Nurses and nurse practitioners7,25926%
Physician assistants2,5659%
Behavioral health clinicians1,1284%
Therapists (PT and OT)4942%
Other HCPs1,4045%

Source: Dmand AI Affiliation Data

Each Houston medical 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 Houston medical group directory

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

The directory lists groups based in Houston with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Houston

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

How many medical groups are in Houston?

There are 979 medical groups based in Houston with a Medicare PAC ID: 193 multi-specialty and 786 single-specialty. 435 of them have more than one site.

What is the largest medical group in Houston?

UT Physicians, with 2,036 physicians and 3,216 HCPs with a Texas address. Texas Children's Hospital is second with 1,857, and Baylor College of Medicine is third with 1,657.

Which health system has the most medical groups in Houston?

By physicians, The University of Texas System, with 3,654 across 6 groups, followed by Baylor College of Medicine with 2,308 and Texas Children's Hospital with 1,888.

How many Houston medical groups are independent?

710, or 73%, have no larger parent organization in the Dmand AI org hierarchy. 46 belong to a health system or hospital and 117 to a physician platform or corporate owner.

How many Houston medical groups practice at a hospital?

121 Houston groups practice at a hospital site linked to them in the Dmand AI org hierarchy.

How do I find a medical group's NPI or PAC ID?

Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.

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