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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. Yun Li, M.D.
Houston, TX · $25 in drug and device payments (2025) · (281) 737-1000
Dr. Yusuf Adenwala, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 790-3311
Dr. Yusuf Chang, MD
Houston, TX · $144 in drug and device payments (2025) · (713) 790-3311
Dr. Yvonne Heung, M.D.
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 792-6161
Dr. Zaara Qasim
Houston, TX · No drug or device payments recorded (2025) · (713) 798-4951
Dr. Zachary Kinler, MD
Houston, TX · No drug or device payments recorded (2025) · (601) 215-0195
Dr. Zachary Smith, MD
Houston, TX · $395 in drug and device payments (2025) · Telehealth · (281) 597-8555
Dr. Zahida Siddiqi, MD
Houston, TX · $533 in drug and device payments (2025) · Telehealth · (713) 461-2915
Dr. Zaid Safder, MD
Houston, TX · No drug or device payments recorded (2025) · (281) 929-6100
Dr. Zaven Sargsyan, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 873-8890
Dr. Zehra Tosur, M.D.
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 798-2500
Dr. Zenithe Ware, MD
Houston, TX · $272 in drug and device payments (2025) · Telehealth · (713) 363-7640
Dr. Zhihao Dai, M.D.
Houston, TX · $2,254 in drug and device payments (2025) · Telehealth · (713) 814-2800
Dr. Zhihao Zhu, MD
Houston, TX · $328 in drug and device payments (2025) · (713) 441-5114
Dr. Zoya Hussain, D.O.
Houston, TX · $37 in drug and device payments (2025) · (713) 500-6713
Dr. Adam Mitchell, MD
Humble, TX · No drug or device payments recorded (2025) · (713) 442-2000
Dr. Anil Dara, MD
Humble, TX · $27 in drug and device payments (2025) · (281) 446-0148
Dr. Craig Thomas, MD
Humble, TX · No drug or device payments recorded (2025) · (713) 442-2000
Dr. Fabiana Farinetti, MD
Humble, TX · $525 in drug and device payments (2025) · Telehealth · (281) 812-1846
Dr. George Isaac, M.D
Humble, TX · No drug or device payments recorded (2025) · (281) 446-9676
Dr. Hanan Hannoodee, MD
Humble, TX · $101 in drug and device payments (2025) · (281) 548-1210
Dr. Humara Gull, MD
Humble, TX · No drug or device payments recorded (2025) · (281) 459-9181
Dr. Jasmine Nguyen, MD
Humble, TX · No drug or device payments recorded (2025) · (713) 442-2000
Dr. Jeff Wang, MD
Humble, TX · $1,496 in drug and device payments (2025) · Telehealth · (281) 446-7173
Dr. Jelani Teamer, M.D.
Humble, TX · No drug or device payments recorded (2025) · (281) 319-8409
Dr. Jen Koon, MD
Humble, TX · $17 in drug and device payments (2025) · (281) 446-0148
Dr. Keith Vassallo, MD
Humble, TX · No drug or device payments recorded (2025) · (713) 442-2000
Dr. Kimberly Petitt, DO
Humble, TX · $133 in drug and device payments (2025) · (713) 817-6663
Dr. Liza Jemison, MD
Humble, TX · $39 in drug and device payments (2025) · (281) 540-6322
Dr. Marilyn Mora, M.D.
Humble, TX · No drug or device payments recorded (2025) · (228) 806-6773
Dr. Mushtaque Ahmed, MD
Humble, TX · $256 in drug and device payments (2025) · Telehealth · (713) 461-2915
Dr. Nimesh Amin, D.O.
Humble, TX · No drug or device payments recorded (2025) · (281) 540-7700
Dr. Olaronke Thuston, MD
Humble, TX · $20 in drug and device payments (2025) · (281) 540-7700
Dr. Olubunmi Ogundadegbe
Humble, TX · No drug or device payments recorded (2025) · Telehealth · (713) 904-3455
Dr. Praful Kaushik, M.D.
Humble, TX · $1,241 in drug and device payments (2025) · Telehealth · (281) 446-7173
Dr. Rosemary Schempp, MD
Humble, TX · No drug or device payments recorded (2025) · (713) 442-2000
Dr. Santiago Segurola, M.D.
Humble, TX · $243 in drug and device payments (2025) · (281) 548-1210
Dr. Srinivas Rumalla, M.D.
Humble, TX · $349 in drug and device payments (2025) · Telehealth · (281) 548-1210
Dr. Sunita Rumalla, MD
Humble, TX · $81 in drug and device payments (2025) · (281) 548-1210
Dr. Tamika Denson-willis, MD
Humble, TX · $1,026 in drug and device payments (2025) · Telehealth · (281) 446-0148
Dr. Tapasya Mandalapu, M.D
Humble, TX · No drug or device payments recorded (2025) · (281) 318-2515
Dr. Tejas Mehta, MD
Humble, TX · $775 in drug and device payments (2025) · Telehealth · (281) 446-7173
Dr. George Boone, M.D.
Hunt, TX · No drug or device payments recorded (2025) · (830) 238-6123
Dr. Lindsey Neill, D.O.
Hunt, TX · $323 in drug and device payments (2025) · (830) 238-6123
Dr. Lenin Pinnamaneni, M.D.
Huntington, TX · $1,073 in drug and device payments (2025) · Telehealth · (936) 876-5719
Dr. Ali Bhuriwala, M.D.
Huntsville, TX · $23 in drug and device payments (2025) · (936) 436-1786
Dr. Darnel Durand, M.D.
Huntsville, TX · No drug or device payments recorded (2025) · (936) 436-1786
Dr. David Ficklen
Huntsville, TX · No drug or device payments recorded (2025) · (936) 435-0014
Dr. Jayne Schulte, M.D.
Huntsville, TX · No drug or device payments recorded (2025) · (936) 295-8000
Dr. John Hines, MD
Huntsville, TX · No drug or device payments recorded (2025) · (936) 291-8205

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.