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. Hema Patel, MDHouston, TX · $1,139 in drug and device payments (2025) · Telehealth ·
(281) 492-1900 Dr. Henrietta Umenyiora, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 500-6765 Dr. Henry EllisonHouston, TX · No drug or device payments recorded (2025) ·
(713) 441-5114 Dr. Herminia Palacio, MD, MPHHouston, TX · No drug or device payments recorded (2025) ·
(713) 439-6016 Dr. Himabindu Kadiyala, MBBSHouston, TX · No drug or device payments recorded (2025) ·
(713) 791-1414 Dr. Hina Pandya, MDHouston, TX · $153 in drug and device payments (2025) ·
(713) 814-2800 Dr. Hira Tanwir, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 792-6161 Dr. Hoang-anh Phan, D.OHouston, TX · $560 in drug and device payments (2025) · Telehealth ·
(832) 644-0200 Dr. Holly Smith, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(832) 325-7111 Dr. Hong Loan Nguyen, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 798-5588 Dr. Hongwu Wang, M.DHouston, TX · $180 in drug and device payments (2025) ·
(281) 737-0570 Dr. Hooshang Guilak, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 780-8812 Dr. Hortensia Rosales Martinez, MDHouston, TX · $26 in drug and device payments (2025) · Telehealth ·
(832) 919-8755 Dr. Hossam Safar, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 794-7440 Dr. Howard Grant, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 661-8994 Dr. Hsiao Tang, MDHouston, TX · $125 in drug and device payments (2025) ·
(713) 850-1190 Dr. Huaiguang Li, MDHouston, TX · No drug or device payments recorded (2025) ·
(832) 834-4812 Dr. Huan Xu, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 798-8918 Dr. Hung Dang, M.D.Houston, TX · $636 in drug and device payments (2025) ·
(281) 575-9967 Dr. Hung Le, M.D.Houston, TX · $664 in drug and device payments (2025) ·
(281) 481-8878 Dr. Hung Nguyen, M.D.Houston, TX · $4,110 in drug and device payments (2025) · Telehealth ·
(832) 912-7111 Dr. Hussein Abbas, MD, PHDHouston, TX · $264 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Hussein Tawbi, MDHouston, TX · $47,017 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Huyen Duong, M.D.Houston, TX · $166 in drug and device payments (2025) ·
(713) 773-0803 Dr. Ibrahim Ahmed, MBBSHouston, TX · No drug or device payments recorded (2025) ·
(713) 791-1414 Dr. Ibrahim Dahbour, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 792-6161 Dr. Ifeanyi Anyaoha, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 798-2222 Dr. Iftikhar Sarwar, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 442-3222 Dr. Ikechukwu Ilochonwu, MDHouston, TX · No drug or device payments recorded (2025) ·
(281) 915-1630 Dr. Ikenna Ogbaa, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(832) 325-7100 Dr. Imran Poonawala, D.O. Dr. Ines Vazquez, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 532-6884 Dr. Inimfon Jackson, MD, MPH, PHDHouston, TX · $78 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Irene Fuentez, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(281) 985-8511 Dr. Irene Sobolevsky, MDHouston, TX · No drug or device payments recorded (2025) ·
(713) 442-0000 Dr. Irum Zaheer, M.DHouston, TX · $1,328 in drug and device payments (2025) · Telehealth ·
(713) 363-8055 Dr. Irvin Tantuco, MDHouston, TX · $1,083 in drug and device payments (2025) · Telehealth ·
(713) 524-3900 Dr. Isabella Glitza, M.D.Houston, TX · $2,476 in drug and device payments (2025) · Telehealth ·
(713) 792-6161 Dr. Isiah Gonzalez, MDHouston, TX · $150 in drug and device payments (2025) ·
(713) 798-4951 Dr. Ismael Polo Perez, MDHouston, TX · $199 in drug and device payments (2025) ·
(713) 798-4951 Dr. Ivandito Kuntjoro, M.D.Houston, TX · No drug or device payments recorded (2025) ·
(713) 492-7218 Dr. Jaanki Khandelwal, MDHouston, TX · $564 in drug and device payments (2025) ·
(713) 500-6500 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.
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