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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. Thomas Guerra, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 433-7257
Dr. Thomas Mieras, MD
San Antonio, TX · $1,061 in drug and device payments (2025) · Telehealth · (210) 705-5600
Dr. Thomas Ockershausen, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (512) 300-6387
Dr. Thomas Vu, M.D
San Antonio, TX · No drug or device payments recorded (2025) · (210) 617-5300
Dr. Timothy Acel, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 916-3856
Dr. Timothy Hernandez, MD
San Antonio, TX · $88 in drug and device payments (2025) · (210) 404-0000
Dr. Timothy Osonma, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 575-4000
Dr. Tristan Fun, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 729-2262
Dr. Uma Nair, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 733-0578
Dr. Uzair Mushtaq, M.D.
San Antonio, TX · $763 in drug and device payments (2025) · Telehealth · (210) 358-4000
Dr. Vajeeha Sadi-ali, M.D
San Antonio, TX · No drug or device payments recorded (2025) · (210) 972-8058
Dr. Vamsi Surapaneni, M.D
San Antonio, TX · No drug or device payments recorded (2025) · (210) 297-3011
Dr. Vanessa Smeberg, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 344-2673
Dr. Vernon Benson, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 404-0000
Dr. Vicki Hannigan, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 617-5139
Dr. Victoria Chang, D.O.
San Antonio, TX · $226 in drug and device payments (2025) · (210) 733-0990
Dr. Victor Martinez-soria, M.D
San Antonio, TX · No drug or device payments recorded (2025) · (210) 523-1411
Dr. Victor Njoku, MD
San Antonio, TX · $30 in drug and device payments (2025) · Telehealth · (210) 847-1486
Dr. Vincent Gonzaba, MD
San Antonio, TX · $665 in drug and device payments (2025) · Telehealth · (210) 509-2603
Dr. Vishy Chaudhary, M.D.
San Antonio, TX · $53 in drug and device payments (2025) · (210) 358-4000
Dr. Vivian Ayoub, M.D.
San Antonio, TX · $125 in drug and device payments (2025) · (210) 354-0800
Dr. Vu Vu, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 344-2673
Dr. Wei-ann Bay, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 617-5300
Dr. Wesam Aziz, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · Telehealth · (210) 736-4544
Dr. William Atlas, M.D.
San Antonio, TX · $23 in drug and device payments (2025) · (210) 404-9220
Dr. William Beer, MB,BS
San Antonio, TX · No drug or device payments recorded (2025) · (210) 949-3132
Dr. William Gonzaba, M.D.
San Antonio, TX · $615 in drug and device payments (2025) · Telehealth · (210) 921-3800
Dr. William Jennings, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 614-7483
Dr. Wing Sun Tam, M.D. (M.B., CH.B.)
San Antonio, TX · No drug or device payments recorded (2025) · (210) 617-5300
Dr. Winnifer Baduel, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 732-3668
Dr. Xaviera Ortiz Soto, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 567-4666
Dr. Xiang Li
San Antonio, TX · No drug or device payments recorded (2025) · (210) 525-1668
Dr. Yasamin Khanian-najafabadi, DO
San Antonio, TX · $60 in drug and device payments (2025) · (210) 404-0000
Dr. Yiching Liu, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 297-7011
Dr. Yolanda Marcos, MD
San Antonio, TX · $1,862 in drug and device payments (2025) · Telehealth · (210) 494-4290
Dr. Ysabel Reyes, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 436-8400
Dr. Yu-ching Yeh, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 539-9582
Dr. Yuhoe Dice, MD
San Antonio, TX · $1,323 in drug and device payments (2025) · Telehealth · (210) 705-5600
Dr. Zahir Osuna, MD
San Antonio, TX · $413 in drug and device payments (2025) · Telehealth · (210) 921-3800
Dr. Zai Ganesh, DO
San Antonio, TX · No drug or device payments recorded (2025) · (210) 916-5910
Dr. Zeba Gill, MD
San Antonio, TX · No drug or device payments recorded (2025) · (210) 632-6296
Dr. Zichun Feng, M.D.
San Antonio, TX · No drug or device payments recorded (2025) · (210) 297-6500
Dr. Zoraiz Mushtaq
San Antonio, TX · No drug or device payments recorded (2025) · (210) 358-3555
Dr. Zunair Mushtaq
San Antonio, TX · $213 in drug and device payments (2025) · Telehealth · (210) 352-5200
Dr. Marina Morkos
San Antonio, Tx, TX · $130 in drug and device payments (2025) · (714) 496-0361
Dr. Francisco Loya, MD
San Benito, TX · No drug or device payments recorded (2025) · (956) 247-7000
Dr. Kristel Fernandez-lopez, MD
San Benito, TX · No drug or device payments recorded (2025) · Telehealth · (956) 361-4558
Dr. Mir Ali, MD
San Benito, TX · No drug or device payments recorded (2025) · (956) 247-7000
Dr. Ryan Villafuerte
San Benito, TX · No drug or device payments recorded (2025) · Telehealth · (956) 247-7000
Dr. Nelson Mata, MD
San Juan, TX · No drug or device payments recorded (2025) · (956) 787-0669

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.