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 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. Dawn Whelchel, M.D.Marshall, TX · $148 in drug and device payments (2025) · Telehealth ·
(903) 935-7101 Dr. Donna Alzaga, M.D.Marshall, TX · $68 in drug and device payments (2025) ·
(903) 315-1488 Dr. Douglas Stephenson, DOMarshall, TX · No drug or device payments recorded (2025) ·
(903) 927-6183 Dr. James Facello, D.O.Marshall, TX · No drug or device payments recorded (2025) ·
(903) 927-6800 Dr. James Harris, M.D.Marshall, TX · No drug or device payments recorded (2025) ·
(903) 935-2661 Dr. Kimberly Barbolla, DOMarshall, TX · $1,077 in drug and device payments (2025) · Telehealth ·
(903) 320-3200 Dr. Michael Leath, MDMarshall, TX · No drug or device payments recorded (2025) ·
(903) 938-5149 Dr. Michelle Ray, MDMarshall, TX · $92 in drug and device payments (2025) · Telehealth ·
(903) 927-6800 Dr. Salima Abdul Waheed, MDMarshall, TX · No drug or device payments recorded (2025) ·
(903) 934-5250 Dr. Steven Crayton, MDMarshall, TX · No drug or device payments recorded (2025) ·
(903) 938-5300 Dr. Tiffany Egbe, MDMarshall, TX · No drug or device payments recorded (2025) ·
(903) 315-1488 Dr. Trung Nguyen, MDMarshall, TX · $15 in drug and device payments (2025) ·
(903) 315-1488 Dr. Valarie Allman, M.D.Marshall, TX · No drug or device payments recorded (2025) ·
(903) 927-6800 Dr. Y Pham, M.D.Marshall, TX · No drug or device payments recorded (2025) · Telehealth ·
(903) 927-6800 Dr. Abdo Gonzalez Silvera Dr. Abraham Campoy, M.D.Mcallen, TX · No drug or device payments recorded (2025) ·
(956) 632-4000 Dr. Alvaro Giraldo, M.D.Mcallen, TX · $130 in drug and device payments (2025) · Telehealth ·
(956) 668-0974 Dr. Arturo Martinez, MDMcallen, TX · $324 in drug and device payments (2025) ·
(956) 627-1538 Dr. Belinda Hernandez, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 686-0574 Dr. Benjamin Fano, MDMcallen, TX · No drug or device payments recorded (2025) · Telehealth ·
(956) 632-4000 Dr. Daniela Hernandez, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 296-3990 Dr. Diego Salamanca, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 296-3990 Dr. Dona Cooper-dockery, MDMcallen, TX · $400 in drug and device payments (2025) · Telehealth ·
(956) 686-8802 Dr. Eduardo Aquino, M.D.Mcallen, TX · $557 in drug and device payments (2025) ·
(956) 994-3339 Dr. Felipe Diaz, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 632-4205 Dr. Fernando Arzola, MDMcallen, TX · $154 in drug and device payments (2025) ·
(214) 422-4341 Dr. Francisco Gonzalez, MD Dr. Henneth Corado Montenegro, M.D.Mcallen, TX · $159 in drug and device payments (2025) · Telehealth ·
(956) 365-4400 Dr. Hira JamalMcallen, TX · No drug or device payments recorded (2025) ·
(956) 362-3520 Dr. Hiram Tavarez, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 686-0574 Dr. Ismael Cantu GarciaMcallen, TX · No drug or device payments recorded (2025) ·
(956) 632-6600 Dr. John Manllo Dieck, M.D.Mcallen, TX · $641 in drug and device payments (2025) ·
(956) 631-6136 Dr. Jonathan LongoriaMcallen, TX · No drug or device payments recorded (2025) ·
(956) 632-4000 Dr. Jorge Duarte Solis, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 800-1303 Dr. Jorge Nadal, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 362-3505 Dr. Jose Martinez, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 580-3350 Dr. Jose Rivera, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 688-8023 Dr. Juan Rojas, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 686-7611 Dr. Juan Salazar, MDMcallen, TX · $476 in drug and device payments (2025) ·
(956) 687-1177 Dr. Kannan Ramamurthy, M.D.Mcallen, TX · No drug or device payments recorded (2025) ·
(956) 631-3982 Dr. Kashmira Massani, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 632-4000 Dr. Khairiya Camilia Haj-yahya, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 800-1303 Dr. Khursheed Alam, M.D.Mcallen, TX · No drug or device payments recorded (2025) ·
(956) 664-8357 Dr. Kwei Akuete, MDMcallen, TX · No drug or device payments recorded (2025) · Telehealth ·
(512) 730-3056 Dr. Lenore Depagter, DOMcallen, TX · No drug or device payments recorded (2025) ·
(956) 358-4208 Dr. Luis Gonzalez Peniza, MDMcallen, TX · No drug or device payments recorded (2025) ·
(956) 580-8072 Dr. Mangala Ramamurthy, M.D.Mcallen, TX · No drug or device payments recorded (2025) ·
(956) 631-3982 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.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
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
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