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Internal Medicine Doctors in Texas

Data updated monthly · Last refresh October 2026

9,182 Internal Medicine providers practice in Texas, including 1,804 (20%) offering telehealth. The largest concentration is in Houston. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

9,182providers
1,804telehealth
Houstontop city

Internal Medicine by city in Texas

Choose a city to see providers there.

Internal Medicine in Houston1,496 providers
Internal Medicine in Dallas950 providers
Internal Medicine in San Antonio658 providers
Internal Medicine in Austin607 providers
Internal Medicine in Fort Worth394 providers
Internal Medicine in El Paso263 providers
Internal Medicine in Galveston217 providers
Internal Medicine in Plano209 providers
Internal Medicine in Temple195 providers
Internal Medicine in Tyler143 providers
Internal Medicine in Lubbock119 providers
Internal Medicine in Sugar Land108 providers
Internal Medicine in Arlington102 providers
Internal Medicine in Longview100 providers
Internal Medicine in Irving99 providers
Internal Medicine in Corpus Christi95 providers
Internal Medicine in Amarillo82 providers
Internal Medicine in Frisco81 providers
Internal Medicine in Harlingen73 providers
Internal Medicine in Webster70 providers
Internal Medicine in Odessa66 providers
Internal Medicine in Richardson62 providers
Internal Medicine in San Angelo61 providers
Internal Medicine in Round Rock61 providers

Internal Medicine providers in Texas

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Timothy Dixon, MD
Lubbock, TX · $279 in drug and device payments (2025) · (806) 775-8200
Dr. Vernon Farthing, MD
Lubbock, TX · No drug or device payments recorded (2025) · (806) 762-8461
Dr. Watsachon Pangkanon, MD
Lubbock, TX · $109 in drug and device payments (2025) · (806) 743-6840
Dr. William Butler, MD
Lubbock, TX · $140 in drug and device payments (2025) · (806) 775-8200
Dr. William Hatch, DO
Lubbock, TX · No drug or device payments recorded (2025) · (806) 368-5837
Dr. Yvette Tomacruz, M.D.
Lubbock, TX · No drug or device payments recorded (2025) · (806) 793-8447
Dr. Zachary Mulkey, MD
Lubbock, TX · $15 in drug and device payments (2025) · (806) 743-3150
Dr. Anita Kuruvilla, M.D.
Lufkin, TX · $53 in drug and device payments (2025) · (936) 632-8787
Dr. Anthony Zollo, MD
Lufkin, TX · No drug or device payments recorded (2025) · (936) 633-2712
Dr. Bao Bui, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 631-3056
Dr. David Glenn, MD
Lufkin, TX · $21 in drug and device payments (2025) · (936) 639-2244
Dr. Hilda Michael, MD, MPH, MBA
Lufkin, TX · $42 in drug and device payments (2025) · (936) 634-8311
Dr. Hiram Ndungu, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 634-8111
Dr. Jack Halter, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 634-7522
Dr. Jacob Thomas, M.D.,
Lufkin, TX · No drug or device payments recorded (2025) · (936) 639-6210
Dr. Jonathan Hassell, MD
Lufkin, TX · No drug or device payments recorded (2025) · (936) 637-1342
Dr. Jose Carranza Chavez, MD
Lufkin, TX · $1,276 in drug and device payments (2025) · Telehealth · (936) 639-2244
Dr. Josefa Santiago, MD
Lufkin, TX · No drug or device payments recorded (2025) · (936) 632-9277
Dr. Juan Hernandez, M.D
Lufkin, TX · $169 in drug and device payments (2025) · (936) 634-7225
Dr. Karen Allen, DO
Lufkin, TX · No drug or device payments recorded (2025) · (936) 634-8111
Dr. Karl Krohn, M.D.
Lufkin, TX · $131 in drug and device payments (2025) · (936) 632-8220
Dr. Kyle Krohn, M.D.
Lufkin, TX · $131 in drug and device payments (2025) · Telehealth · (936) 632-8220
Dr. Mariyam Cherry, M.D.
Lufkin, TX · $260 in drug and device payments (2025) · Telehealth · (936) 899-5682
Dr. Michael Huber, MD
Lufkin, TX · $1,022 in drug and device payments (2025) · (936) 639-2244
Dr. Olufemi Oladele-ajose, MD
Lufkin, TX · No drug or device payments recorded (2025) · (936) 244-0659
Dr. Opeoluwa Dehinbo, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 634-8111
Dr. Patrick Igharosa, MD
Lufkin, TX · $16 in drug and device payments (2025) · (936) 639-7015
Dr. Pramod Pinnamaneni, M.D.
Lufkin, TX · $3,391 in drug and device payments (2025) · Telehealth · (936) 637-6415
Dr. Prasad Peddu, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 634-3995
Dr. Pratibha Deshpande, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 699-5040
Dr. Reagan Bonin, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 671-4300
Dr. Richard Roby, MD
Lufkin, TX · $600 in drug and device payments (2025) · (936) 639-2244
Dr. Robert Busuego, MD
Lufkin, TX · No drug or device payments recorded (2025) · (936) 634-8111
Dr. Samuel Santiago, MD
Lufkin, TX · $44 in drug and device payments (2025) · (936) 632-9277
Dr. Sean Moran, MD
Lufkin, TX · $624 in drug and device payments (2025) · Telehealth · (936) 639-2244
Dr. Sondra Khalil, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 633-2768
Dr. Srinivasa Gurram, M.D
Lufkin, TX · No drug or device payments recorded (2025) · (862) 290-7727
Dr. Sudheer Karnati, MD
Lufkin, TX · $523 in drug and device payments (2025) · (936) 634-1003
Dr. Sushma Arramraju, M.D
Lufkin, TX · $65 in drug and device payments (2025) · (936) 631-5600
Dr. Swapna Bemalgi, M.D.,
Lufkin, TX · $144 in drug and device payments (2025) · (484) 526-6643
Dr. Varughese Samuel, M.D.
Lufkin, TX · No drug or device payments recorded (2025) · (936) 637-2888
Dr. Wali Zaidi, M.D.
Lufkin, TX · $269 in drug and device payments (2025) · (936) 639-7888
Dr. Wasim Khan, MD
Lufkin, TX · $128 in drug and device payments (2025) · (936) 637-8311
Dr. Ivan Nepustil, MD
Luling, TX · No drug or device payments recorded (2025) · (830) 875-3445
Dr. Elena Xintavelonis, MD
Lumberton, TX · $292 in drug and device payments (2025) · Telehealth · (409) 813-1677
Dr. Jong Lee, MD
Lumberton, TX · No drug or device payments recorded (2025) · (409) 755-6489
Dr. Allison Walworth, DO
Magnolia, TX · $373 in drug and device payments (2025) · (281) 356-1945
Dr. Gurunath Subrahmanyam, MD
Magnolia, TX · No drug or device payments recorded (2025) · (281) 356-1945
Dr. Hunaid Dollar, MD
Magnolia, TX · $280 in drug and device payments (2025) · (281) 252-8600
Dr. Justin Hogan, M.D.
Magnolia, TX · $68 in drug and device payments (2025) · (346) 703-2075

Conditions Internal Medicine providers in Texas commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Texas?

There are 9,182 Internal Medicine providers with active NPI records practicing in Texas, according to federal NPPES data refreshed monthly.

Do Internal Medicine providers in Texas offer telehealth?

Yes. 1,804 of the 9,182 Internal Medicine providers in Texas (about 20%) report offering telehealth services in CMS data.

Which cities in Texas have the most Internal Medicine providers?

Houston (1,496), Dallas (950), San Antonio (658) have the highest concentration of Internal Medicine providers in Texas.

How many Internal Medicine providers in Texas received drug or device company payments?

3,948 of 9,182 Internal Medicine providers in Texas (43%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in Texas treat?

Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Internal Medicine Doctors in Texas work in independent practices or large health systems?

Among 5,747 Internal Medicine Doctors in Texas enrolled in Medicare, 23% bill through a solo or small practice with fewer than 10 clinicians, 17% through a mid-size group of 10 to 99, and 60% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Internal Medicine Doctors in Texas work at?

According to CMS facility affiliation records, the Texas hospitals where the most Internal Medicine Doctors hold privileges are Memorial Hermann Hospital System in Houston; Baylor University Medical Center in Dallas; Houston Methodist Hospital in Houston.

Related reading on HealthcareDiscovery.AI

Internal Medicine in all 50 states Search all 9,182 in the directory Ask Zach for help choosing

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Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Internal Medicine in Texas? Get featured.