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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. Anni Chowdhury, DO
Galveston, TX · $158 in drug and device payments (2025) · (409) 747-1883
Dr. Anushah Mirza
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Arielle Degueure, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Ashish Mamachen, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-7063
Dr. Avery Love, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Ayushi Sahu, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Ayush Singh, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Bernard Karnath, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-2222
Dr. Beth Hawkins, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Betty Santiago, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-2731
Dr. Bisma Khwaja, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Blijo Puthenpurayil, DO
Galveston, TX · $53 in drug and device payments (2025) · (409) 747-1883
Dr. Briana Lewis, MD
Galveston, TX · No drug or device payments recorded (2025) · Telehealth · (409) 772-7063
Dr. Byoung Ug Ryu
Galveston, TX · $814 in drug and device payments (2025) · (409) 747-1883
Dr. Carlos Clark, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Carlos Dostal, MD, PHD
Galveston, TX · $146 in drug and device payments (2025) · Telehealth · (409) 747-1883
Dr. Chandler O'leary, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Chau Hoang, MD
Galveston, TX · $530 in drug and device payments (2025) · (409) 772-4182
Dr. Chinenye Onejeme
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-2653
Dr. Christine Nguyen, M.D.
Galveston, TX · $99 in drug and device payments (2025) · (409) 772-7063
Dr. Christine Pho
Galveston, TX · $66 in drug and device payments (2025) · (409) 747-1883
Dr. Claire Fason, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Clarissa Maldonado, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Courtney Mack, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Daaniyal Munir, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Daniel Prabahkar, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Daniel Shofner, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Daniel Young, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. David Fernandez
Galveston, TX · No drug or device payments recorded (2025) · Telehealth · (409) 747-1883
Dr. David Morris, D.O.
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-1011
Dr. David Ramirez, M.D.
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-0817
Dr. Derek Nusbaum, M.D., PH.D.
Galveston, TX · No drug or device payments recorded (2025) · (409) 457-5219
Dr. Diana Bonilla Moreno, MD
Galveston, TX · $15 in drug and device payments (2025) · (409) 747-1883
Dr. Elena Diller, MD
Galveston, TX · $116 in drug and device payments (2025) · (409) 747-1883
Dr. Elizabeth Davis, MD
Galveston, TX · $495 in drug and device payments (2025) · (409) 747-1883
Dr. Elizabeth Jaramillo, M.D.
Galveston, TX · $116 in drug and device payments (2025) · Telehealth · (409) 789-4022
Dr. Elizabeth Vaughan, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-1011
Dr. Enrique Mangan, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Erin Dindoruk, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Erin Guerra, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Freweini Lemma, M.D.
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-7063
Dr. Gage Bebak, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Garima Malhotra, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Gayatri Aaluri, MD
Galveston, TX · No drug or device payments recorded (2025) · (909) 747-1883
Dr. George Brooks, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-2222
Dr. George Chamoun
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Hannah Rourick, DO
Galveston, TX · No drug or device payments recorded (2025) · (409) 747-1883
Dr. Hans Vonmarensdorff, MD
Galveston, TX · No drug or device payments recorded (2025) · (409) 772-2222
Dr. Harry Kelso, M. D.
Galveston, TX · No drug or device payments recorded (2025) · (409) 766-6416
Dr. Helen Nguyen
Galveston, TX · $146 in drug and device payments (2025) · (409) 747-1883

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

Related

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.