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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. George Katei, M.D.
Houston, TX · No drug or device payments recorded (2025) · (832) 203-7308
Dr. George Keith, M.D.
Houston, TX · $3,912 in drug and device payments (2025) · Telehealth · (713) 467-8888
Dr. George Pettit, MD
Houston, TX · No drug or device payments recorded (2025) · (281) 890-0792
Dr. Georgia Mclendon, MD
Houston, TX · $409 in drug and device payments (2025) · Telehealth · (346) 356-7000
Dr. Giam Nguyen, D.O.
Houston, TX · No drug or device payments recorded (2025) · (713) 224-5887
Dr. Giao Duong, MD
Houston, TX · No drug or device payments recorded (2025) · (832) 741-0260
Dr. Giao Hoang, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 779-2212
Dr. Glencora Sharfman, M.D.
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 532-6884
Dr. Glenn Spaulding, M.D.
Houston, TX · No drug or device payments recorded (2025) · (281) 827-4707
Dr. Gloria Iliescu, MD
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 960-8008
Dr. Glynda Jane Raynaldo, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 791-1414
Dr. Gonzalo Ramos, M.D.
Houston, TX · No drug or device payments recorded (2025) · (888) 478-8432
Dr. Gopikishan Rangaraj, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 742-8200
Dr. Gordon Crofoot, MD
Houston, TX · $6,550 in drug and device payments (2025) · Telehealth · (713) 526-0005
Dr. Grace Varas, D.O.
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (281) 720-8998
Dr. Grant Coan, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 791-1414
Dr. Gregory Burzynski, MD
Houston, TX · $747 in drug and device payments (2025) · (713) 335-5697
Dr. Gregory Patton, MD
Houston, TX · $114 in drug and device payments (2025) · (713) 343-2300
Dr. Gregory Rumph, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 873-2626
Dr. Gregory Vo, M.D.
Houston, TX · $164 in drug and device payments (2025) · (713) 757-1000
Dr. Gurjit Kaur, DO
Houston, TX · No drug or device payments recorded (2025) · (713) 442-1500
Dr. Hadiqa Memon, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 500-7878
Dr. Haider Altay, M.D.
Houston, TX · $484 in drug and device payments (2025) · (713) 792-6161
Dr. Hala Hassanain, MD
Houston, TX · No drug or device payments recorded (2025) · (712) 441-5114
Dr. Halie Shah, MD
Houston, TX · $459 in drug and device payments (2025) · Telehealth · (713) 714-5376
Dr. Hal Zhang, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 873-2000
Dr. Hamza Salim, DO
Houston, TX · No drug or device payments recorded (2025) · (713) 242-3768
Dr. Hanan Khairalla, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 500-6881
Dr. Hang Munsayac, M.D.
Houston, TX · $450 in drug and device payments (2025) · (713) 526-5511
Dr. Ha Nguyen, D.O.
Houston, TX · $36 in drug and device payments (2025) · (713) 861-6490
Dr. Hanna Abu-nassar, M.D.
Houston, TX · No drug or device payments recorded (2025) · (281) 488-1261
Dr. Hannah Hoff
Houston, TX · No drug or device payments recorded (2025) · (713) 832-8890
Dr. Hannah O'neill
Houston, TX · No drug or device payments recorded (2025) · (713) 790-3311
Dr. Hannah Smati
Houston, TX · No drug or device payments recorded (2025) · (713) 798-2222
Dr. Hansa Medley, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 782-2156
Dr. Hardeep Singh, MD
Houston, TX · $107 in drug and device payments (2025) · (713) 791-1414
Dr. Hareem Usmani, MD
Houston, TX · $25 in drug and device payments (2025) · (281) 720-8639
Dr. Hari Susarla, M.D.
Houston, TX · No drug or device payments recorded (2025) · (281) 586-3888
Dr. Harold Selzman, MD
Houston, TX · No drug or device payments recorded (2025) · (832) 476-3900
Dr. Harold Walton, M.D.
Houston, TX · $22 in drug and device payments (2025) · Telehealth · (713) 486-6200
Dr. Harshit Khosla
Houston, TX · $295 in drug and device payments (2025) · (713) 500-6325
Dr. Harvey Dayton, M.D.
Houston, TX · $32 in drug and device payments (2025) · (713) 227-8246
Dr. Hassaan Rasheed, MD
Houston, TX · $2 in drug and device payments (2025) · (713) 500-6868
Dr. Hassan Ashraf, MD
Houston, TX · $20,393 in drug and device payments (2025) · (713) 500-6500
Dr. Hayley Walker, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 873-8890
Dr. Heather Bartsch, M.D.
Houston, TX · No drug or device payments recorded (2025) · (832) 667-4150
Dr. Hector Carbajal, M.D.
Houston, TX · $41 in drug and device payments (2025) · (281) 252-9993
Dr. Hector Rodriguez, MD
Houston, TX · $19 in drug and device payments (2025) · (713) 442-0000
Dr. Heidi Krause, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 792-6161
Dr. Hemalatha Vijayan, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 778-0692

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.