Internists in Houston, TX
- Internists
- 1,571
- Linked to a hospital or group
- 1,350
- Hospitals with an internist
- 128
- Medical groups with an internist
- 285
- Practice at a hospital
- 1,038
There are 1,571 internists in Houston. Houston Methodist Specialty Physician Group has the most, 146, and Houston Methodist Hospital has the most affiliated internists, 229. 28% finished medical school 30 or more years ago.
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Validated work emails and mobile numbers for Houston internists, found through healthcare waterfall enrichment, with a free Dmand AI account.
Houston internists, listed A to Z by last name
Each internist on the list has internal medicine as their primary specialty and a Houston practice address. The list shows the NPI, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.
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Showing 1 to 50 of 1,445 Houston internists
The list shows the 1,445 internists with a public profile. The other 126 are counted in the total and searchable with a free account.
Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data
For health IT teams
Dmand AI has the EHR for 1,406 of 1,571 Houston internists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.
Houston Methodist Specialty Physician Group has the most internists in Houston, with 146
Physicians Referral Service is second with 144, and Baylor College of Medicine third with 124. Counts are internists with a Texas address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
Houston Methodist Hospital has the most affiliated internists in Houston, with 229
Memorial Hermann Greater Heights Hospital is second with 184, and The University of Texas MD Anderson Cancer Center third with 152. Houston internists are affiliated with 128 hospitals in all.
See every hospital and group for each Houston internist
Each public profile names one place an internist practices. A free account shows all of them, with the employer, the EHR and validated contacts.
Source: Dmand AI Affiliation Data
Most Houston internists practice at a hospital: 1,038 of the 1,324 with a mapped site
746 also practice at a medical group site, and 208 at physician offices. An internist can practice at several kinds of site, so the shares overlap.
Houston internists by site of care
- Hospitals1,038
- Medical group practices746
- Physician offices208
- Home health agencies193
- Skilled nursing facilities109
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
28% of Houston internists finished medical school 30 or more years ago
331 of the 1,203 Houston internists with a graduation year on file. 224 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago224
- 10 to 19 years ago370
- 20 to 29 years ago278
- 30 to 39 years ago218
- 40 or more years ago113
Source: Dmand AI Professional Profile Data
Every Houston internist profile shows current hospitals and groups, Medicare activity and NPI details
- Primary practiceThe main place they practice, with its type and cityOn every profile
- Every site of careEach hospital, clinic and group where they practice nowWith a free account
- EmployerThe organization they work for, when one is on fileWith a free account
- Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
- Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
- Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
- Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
- Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
- NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
- Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
- EHR in useThe EHR at each site where they practiceWith a free account
- Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data
Sources for the Houston internist directory
| Data on this page | Source |
|---|---|
| HCPs, types and specialties | NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data |
| Sites of care, hospitals and medical groups | Dmand AI Affiliation Data |
| Medical school graduation year | Dmand AI Professional Profile Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
Internists are HCPs whose primary specialty is internal medicine (taxonomy code 207R00000X), with an active NPI and a Houston practice address.
FAQ
Frequently asked questions about internists 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 internists are in Houston?
1,571 internists have an active NPI, a Houston practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 1,350 of them are linked to a hospital or medical group.
Which Houston medical groups have the most internists?
Houston Methodist Specialty Physician Group, with 146, followed by Physicians Referral Service with 144 and Baylor College of Medicine with 124.
Which Houston hospitals have the most internists?
Houston Methodist Hospital, with 229 affiliated internists, followed by Memorial Hermann Greater Heights Hospital with 184 and The University of Texas MD Anderson Cancer Center with 152.
What share of Houston internists practice at a hospital?
1,038 of the 1,324 Houston internists with a mapped site of care, or 78%, have a current hospital affiliation.
What is the taxonomy code for internal medicine?
207R00000X is the NPPES taxonomy code for internal medicine. Sub-specialties with their own code are counted on their own lists.
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