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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. Carlos Zamora, M.D.
San Marcos, TX · No drug or device payments recorded (2025) · (512) 396-6513
Dr. Cody Nichols, M.D.
San Marcos, TX · $71 in drug and device payments (2025) · (512) 396-1000
Dr. Donna Dolan, MD
San Marcos, TX · No drug or device payments recorded (2025) · (512) 396-1525
Dr. Emilio Carranco, M.D.
San Marcos, TX · No drug or device payments recorded (2025) · (512) 245-2161
Dr. Grayson Smith, MD
San Marcos, TX · No drug or device payments recorded (2025) · (512) 396-1525
Dr. Gregory Moore, MD
San Marcos, TX · No drug or device payments recorded (2025) · (512) 396-1000
Dr. Janet Strickland, MD
San Marcos, TX · No drug or device payments recorded (2025) · (512) 396-3911
Dr. Jose Ayala, MD
San Marcos, TX · $171 in drug and device payments (2025) · (512) 353-8979
Dr. Larry Beville, NP
San Marcos, TX · No drug or device payments recorded (2025) · (512) 396-1000
Dr. Margaret Whisenant, M.D.
San Marcos, TX · No drug or device payments recorded (2025) · (512) 245-2161
Dr. Raka Amin, MD
San Marcos, TX · $32 in drug and device payments (2025) · (214) 886-1789
Dr. Rubin Harris, MD
San Marcos, TX · No drug or device payments recorded (2025) · (512) 342-0455
Dr. Thomas Parker, M.D.
San Marcos, TX · $188 in drug and device payments (2025) · (512) 353-8979
Dr. Jeffry Mays, MD
San Saba, TX · No drug or device payments recorded (2025) · (325) 372-3178
Dr. Robin Miller, MD
San Saba, TX · No drug or device payments recorded (2025) · (847) 909-4126
Dr. Joseph Capps, M.D.
Seagoville, TX · No drug or device payments recorded (2025) · (972) 287-4095
Dr. Adaeze Nwosu, M.D.
Seguin, TX · $339 in drug and device payments (2025) · (830) 469-3133
Dr. Ethan Massingill, DO
Seguin, TX · No drug or device payments recorded (2025) · (830) 379-2411
Dr. Juan Arenas-herrera, M.D
Seguin, TX · No drug or device payments recorded (2025) · (830) 312-1116
Dr. Robert Frets, MD
Seguin, TX · No drug or device payments recorded (2025) · (830) 372-1615
Dr. Susan Heineck, M.D.
Seguin, TX · No drug or device payments recorded (2025) · (830) 379-2411
Dr. Yu Jie Kuo, M.D.
Seguin, TX · $21 in drug and device payments (2025) · Telehealth · (830) 372-5588
Dr. Anthony Wright, DO
Selma, TX · $240 in drug and device payments (2025) · Telehealth · (210) 654-9300
Dr. James Murray, MD
Selma, TX · No drug or device payments recorded (2025) · (210) 659-5533
Dr. Mark Layman, M.D.
Seminole, TX · No drug or device payments recorded (2025) · (432) 758-6363
Dr. Eloisa Banez, MD
Seymour, TX · No drug or device payments recorded (2025) · (940) 889-5572
Dr. Carlos Diaz Velez, MD
Shavano Park, TX · No drug or device payments recorded (2025) · (210) 558-6288
Dr. Sakshi Malhotra, MD
Shavano Park, TX · No drug or device payments recorded (2025) · (402) 630-7221
Dr. Sumeet Chavan, MD
Shavano Park, TX · No drug or device payments recorded (2025) · (210) 558-6288
Dr. Alison Urey, M.D.
Shenandoah, TX · No drug or device payments recorded (2025) · Telehealth · (713) 442-1800
Dr. Altaf Karim, MD
Shenandoah, TX · $141 in drug and device payments (2025) · Telehealth · (832) 658-3600
Dr. Amy Chung, DO
Shenandoah, TX · $1,259 in drug and device payments (2025) · Telehealth · (281) 296-8500
Dr. Anu Mariyappa, M.D
Shenandoah, TX · $575 in drug and device payments (2025) · Telehealth · (281) 825-3344
Dr. Aung Ya, MD
Shenandoah, TX · No drug or device payments recorded (2025) · Telehealth · (713) 897-5539
Dr. Bret Mcaden, MD
Shenandoah, TX · No drug or device payments recorded (2025) · (713) 442-1800
Dr. Brotee Rahman, MD
Shenandoah, TX · $2,868 in drug and device payments (2025) · Telehealth · (936) 270-4100
Dr. Denis Galindo, M.D.
Shenandoah, TX · $181 in drug and device payments (2025) · (281) 440-5300
Dr. Donald Frame, MD
Shenandoah, TX · No drug or device payments recorded (2025) · (281) 909-4782
Dr. Emmanuel Achu, M.D.
Shenandoah, TX · $101 in drug and device payments (2025) · Telehealth · (936) 900-6398
Dr. Farhat Khan, MD
Shenandoah, TX · $37 in drug and device payments (2025) · Telehealth · (936) 271-2222
Dr. Frederick Njuki, MD
Shenandoah, TX · No drug or device payments recorded (2025) · Telehealth · (281) 764-1888
Dr. Hardeep Gill, M.D
Shenandoah, TX · $1,159 in drug and device payments (2025) · Telehealth · (936) 270-3800
Dr. Imran Khan, MD
Shenandoah, TX · $116 in drug and device payments (2025) · Telehealth · (281) 475-7845
Dr. Jeanene Smith, M.D.
Shenandoah, TX · $913 in drug and device payments (2025) · Telehealth · (713) 442-1800
Dr. John Michael Punla
Shenandoah, TX · No drug or device payments recorded (2025) · (713) 897-2300
Dr. Kylee Stouder
Shenandoah, TX · $1,025 in drug and device payments (2025) · Telehealth · (936) 270-4100
Dr. Laura Durling, MD
Shenandoah, TX · $860 in drug and device payments (2025) · (281) 440-5300
Dr. Madhavi Machineni, M.D
Shenandoah, TX · $297 in drug and device payments (2025) · (281) 819-7869
Dr. Michelle Cunningham, M.D.
Shenandoah, TX · $1,963 in drug and device payments (2025) · (936) 270-4200
Dr. Mina Daniel, MD
Shenandoah, TX · $47 in drug and device payments (2025) · (713) 897-2307

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.