Updated October 2026

Internists in Katy, TX

Internal medicine
Katy, Texas

Internists: 53
Linked to a hospital or group: 53
Hospitals with an internist: 29
Medical groups with an internist: 52
Practice at a hospital: 47

There are 53 internists in Katy. Memorial Hermann Medical Group has the most, 11, and Memorial Hermann Katy Hospital has the most affiliated internists, 35. 28% finished medical school 30 or more years ago.

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Katy internists, listed A to Z by last name

Each internist on the list has internal medicine as their primary specialty and a Katy 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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Katy internists, A to Z
Internist	Hospitals	Medical groups	Email and phone
Nadia Hafeez Abbasi, MDNPI 1184825689	5 hospitals	5 groups	Contacts
Venkata Lakshmi S.k. Achanta, MDNPI 1487689303	3 hospitals	9 groups	Contacts
John Richards Adams, MDNPI 1922006410	7 hospitals	2 groups	Contacts
Syed Viqar Ahmed, MDNPI 1184673253	3 hospitals	1 group	Contacts
Dilawar Ajani, MDNPI 1528047115	2 hospitals	3 groups	Contacts
Haydar Alamiri, MDNPI 1528621687	4 hospitals	1 group	Contacts
Ambreen Allana, MDNPI 1790167161	4 hospitals	2 groups	Contacts
Saba Asad Ansari, MDNPI 1780994673	-	3 groups	Contacts
Muhammad AsifNPI 1578916490	4 hospitals	3 groups	Contacts
Mashal Awais, MDNPI 1659950160	3 hospitals	2 groups	Contacts
Li Cai, MDNPI 1902860612	3 hospitals	3 groups	Contacts
Roger Enrique Campana, MDNPI 1578859427	4 hospitals	1 group	Contacts
John Matthew Carwile, MDNPI 1487697686	4 hospitals	1 group	Contacts
Eloy Cavazos Jr., MDNPI 1427343649	1 hospital	1 group	Contacts
Moo J. Chung, MDNPI 1306846977	3 hospitals	1 group	Contacts
Gail E. Donley-Urita, MDNPI 1699810390	6 hospitals	3 groups	Contacts
Harold Elliot Gottlieb, MDNPI 1336133081	-	2 groups	Contacts
Saba Hasnain Jafri, MDNPI 1265822373	6 hospitals	3 groups	Contacts
Viswanath Kalapatapu, MDNPI 1972549061	4 hospitals	1 group	Contacts
Fakhri Kalolwala, MDNPI 1396088134	2 hospitals	3 groups	Contacts
Anuradha Kantamani, MDNPI 1649244054	2 hospitals	-	Contacts
Madhuri Kasireddy, MDNPI 1770986424	4 hospitals	3 groups	Contacts
Kevin Edward Kendall, MDNPI 1639356819	4 hospitals	-	Contacts
Samira Khan, MDNPI 1508247842	4 hospitals	1 group	Contacts
Zahoor Khan, MDNPI 1548548019	1 hospital	8 groups	Contacts
Mubarak Ali Khawaja, MDNPI 1548285406	3 hospitals	1 group	Contacts
Christopher Levert, MDNPI 1336594878	5 hospitals	1 group	Contacts
Syed A. Madni, MDNPI 1427222389	6 hospitals	4 groups	Contacts
Masood Mahmood, MDNPI 1205218054	4 hospitals	1 group	Contacts
Mukesh N. Mehta, MDNPI 1558361188	3 hospitals	1 group	Contacts
Ayesha Z. Mian, MDNPI 1710447479	2 hospitals	1 group	Contacts
Humera M. Naqvi, MDNPI 1215247358	2 hospitals	4 groups	Contacts
Obiora Emmanuel Okafor, MDNPI 1881821775	3 hospitals	9 groups	Contacts
Chinelo Ifeyinwa Okoye, MDNPI 1699940627	1 hospital	-	Contacts
Chirag Patel, DONPI 1437508074	1 hospital	4 groups	Contacts
Kalpesh M. Patel, MDNPI 1154386506	2 hospitals	3 groups	Contacts
George Walter Pettit, MDNPI 1225044936	-	1 group	Contacts
Gustavo Alfredo Pulgar Escobar, MDNPI 1518547108	2 hospitals	1 group	Contacts
David W. Reininger, MDNPI 1306846043	1 hospital	2 groups	Contacts
Naueen S. Safdar, MDNPI 1730371980	-	2 groups	Contacts
Khuram Hissam Siddiqi, MDNPI 1093859993	3 hospitals	2 groups	Contacts
Ramon A. Solis Jr., MDNPI 1427058171	3 hospitals	1 group	Contacts
Muhammad A. Syed, MDNPI 1336113323	5 hospitals	8 groups	Contacts
Karen X. Thampoe, MDNPI 1750390092	1 hospital	1 group	Contacts
Reena Thomas, MDNPI 1366672834	4 hospitals	3 groups	Contacts
Hugo M. Toro, MDNPI 1861495541	2 hospitals	-	Contacts
Hector Ubaldo, MDNPI 1790795383	-	-	Contacts
Brenda L. Wainscott, MDNPI 1255337754	5 hospitals	2 groups	Contacts
Syed Farhat Zaidi, MDNPI 1518933811	3 hospitals	1 group	Contacts
Rabeea Zaki, MBBS, MDNPI 1821439431	1 hospital	3 groups	Contacts

Showing 1 to 50 of 53 Katy internists

Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data

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Memorial Hermann Medical Group has the most internists in Katy, with 11

Katy Internal Medicine Associates is second with 7, and IPC Healthcare, Inc. (TeamHealth) third with 6. Counts are internists with a Texas address linked to each group.

Medical groups with the most internists in Katy
#	Medical group	Parent organization	Internists
1	Memorial Hermann Medical GroupHouston	Parent on file	11
2	Katy Internal Medicine AssociatesKaty	-	7
3	IPC Healthcare, Inc. (TeamHealth)San Antonio	Parent on file	6
4	Lonestar Hospital Medicine Associates, PAMansfield	-	6
5	Houston Methodist Specialty Physician GroupHouston	Parent on file	4
6	Hospital Medicine Services of TXSan Antonio	Parent on file	3
7	Collaborative GeriatricsKaty	-	3
8	Medical Colleagues of TexasKaty	-	3
9	CareOne Internal Medicine and Primary CareKaty	-	2
10	Integrative Primary CareKaty	-	2

Top 10 of 52 Katy medical groups with an internist

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

Memorial Hermann Katy Hospital has the most affiliated internists in Katy, with 35

Houston Methodist West Hospital is second with 24, and Memorial Hermann Rehabilitation Hospital-Katy third with 19. Katy internists are affiliated with 29 hospitals in all.

Hospitals with the most internists in Katy
#	Hospital	Health system	Internists
1	Memorial Hermann Katy HospitalKaty	Memorial Hermann Health System	35
2	Houston Methodist West HospitalHouston	Houston Methodist	24
3	Memorial Hermann Rehabilitation Hospital-KatyKaty	Memorial Hermann Health System	19
4	Memorial Hermann Memorial City Medical CenterHouston	Memorial Hermann Health System	13
5	Memorial Hermann-Texas Medical CenterHouston	Memorial Hermann Health System	8
6	Houston Methodist Willowbrook HospitalHouston	Houston Methodist	5
7	Columbus Community HospitalColumbus	Columbus Community Hospital	4
8	Houston Methodist HospitalHouston	Houston Methodist	3
9	Memorial Hermann Sugar Land HospitalSugarland	Memorial Hermann Health System	3
10	Houston Methodist Continuing Care HospitalKaty	Houston Methodist	3

Top 10 of 29 Katy hospitals with an affiliated internistAll 5 Katy hospitals

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Source: Dmand AI Affiliation Data

Most Katy internists practice at a hospital: 47 of the 53 with a mapped site

39 also practice at a medical group site, and 21 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.

Katy internists by site of care

Hospitals4789%
Medical group practices3974%
Home health agencies2140%
Physician offices1426%
Hospices1426%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

28% of Katy internists finished medical school 30 or more years ago

14 of the 50 Katy internists with a graduation year on file. 1 graduated in the last 10 years, fewer than graduated 40 or more years ago.

Physicians by years since medical school

Under 10 years ago12%
10 to 19 years ago1632%
20 to 29 years ago1938%
30 to 39 years ago1020%
40 or more years ago48%

Source: Dmand AI Professional Profile Data

Every Katy 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

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Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data

Sources for the Katy internist directory

Sources for the data on this page
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 inaccuracy Remove my information

Internists are HCPs whose primary specialty is internal medicine (taxonomy code 207R00000X), with an active NPI and a Katy practice address.

FAQ

Frequently asked questions about internists in Katy

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 Katy?

53 internists have an active NPI, a Katy practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 53 of them are linked to a hospital or medical group.

Which Katy medical groups have the most internists?

Memorial Hermann Medical Group, with 11, followed by Katy Internal Medicine Associates with 7 and IPC Healthcare, Inc. (TeamHealth) with 6.

Which Katy hospitals have the most internists?

Memorial Hermann Katy Hospital, with 35 affiliated internists, followed by Houston Methodist West Hospital with 24 and Memorial Hermann Rehabilitation Hospital-Katy with 19.

What share of Katy internists practice at a hospital?

47 of the 53 Katy internists with a mapped site of care, or 89%, 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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