HealthcareDiscovery.AI / Doctors / Texas / Internal Medicine

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. Robert Rowntree, MD
Dallas, TX · No drug or device payments recorded (2025) · (972) 824-7791
Dr. Robert Thompson, M.D.
Dallas, TX · No drug or device payments recorded (2025) · (214) 828-5050
Dr. Robert Todd, MD
Dallas, TX · $633 in drug and device payments (2025) · Telehealth · (214) 345-5999
Dr. Robin Koshy, MD
Dallas, TX · $34 in drug and device payments (2025) · Telehealth · (214) 266-4000
Dr. Roger Khetan, M.D.
Dallas, TX · $1,942 in drug and device payments (2025) · (972) 993-8300
Dr. Rogers Fair, MD
Dallas, TX · $131 in drug and device payments (2025) · (214) 941-5200
Dr. Roman Castillo, M.D.
Dallas, TX · No drug or device payments recorded (2025) · Telehealth · (214) 381-1187
Dr. Roman Lipovetsky, MD
Dallas, TX · No drug or device payments recorded (2025) · Telehealth · (214) 345-7999
Dr. Ronald Bass
Dallas, TX · No drug or device payments recorded (2025) · (214) 590-8000
Dr. Rosalyn Ortiz-manso, MD
Dallas, TX · $151 in drug and device payments (2025) · (214) 947-2306
Dr. Ruben Amarasingham, M.D.
Dallas, TX · No drug or device payments recorded (2025) · (214) 590-6724
Dr. Ruby Kassanoff, M.D.
Dallas, TX · $314 in drug and device payments (2025) · Telehealth · (214) 823-4800
Dr. Ruchita Iyer
Dallas, TX · No drug or device payments recorded (2025) · (214) 648-2168
Dr. Rufino Talatala, MD
Dallas, TX · No drug or device payments recorded (2025) · Telehealth · (972) 481-1881
Dr. Rui Benevides, M.D.
Dallas, TX · No drug or device payments recorded (2025) · (855) 704-0283
Dr. Rupali Prabhukhot
Dallas, TX · No drug or device payments recorded (2025) · (214) 217-1991
Dr. Ruth Boe, M.D
Dallas, TX · $18 in drug and device payments (2025) · Telehealth · (214) 645-7995
Dr. Ruth Collazo, MD
Dallas, TX · $16 in drug and device payments (2025) · (214) 345-7999
Dr. Ruth Krishnan, M.D.
Dallas, TX · No drug or device payments recorded (2025) · (214) 828-1745
Dr. Ruth Post, MD
Dallas, TX · No drug or device payments recorded (2025) · (972) 715-3800
Dr. Ruth Sanchez, MD
Dallas, TX · $662 in drug and device payments (2025) · (214) 648-2287
Dr. Ryan Heise, M.D.
Dallas, TX · $58 in drug and device payments (2025) · (972) 600-2223
Dr. Ryan Jones, MD
Dallas, TX · $406 in drug and device payments (2025) · Telehealth · (214) 820-6091
Dr. Ryan Parkinson, DO
Dallas, TX · $18 in drug and device payments (2025) · (214) 947-2348
Dr. Saba Haq
Dallas, TX · No drug or device payments recorded (2025) · (214) 947-6700
Dr. Sadia Ghias Rehman, M.D.
Dallas, TX · $15 in drug and device payments (2025) · (214) 947-2385
Dr. Sailaja Dandamudi, M.D
Dallas, TX · $17 in drug and device payments (2025) · Telehealth · (214) 333-3393
Dr. Sailaja Seethamraju, D.O
Dallas, TX · $862 in drug and device payments (2025) · Telehealth · (972) 381-6690
Dr. Sajal Das, MD
Dallas, TX · No drug or device payments recorded (2025) · (972) 888-7264
Dr. Saleh Musleh, D.O.
Dallas, TX · $361 in drug and device payments (2025) · (214) 623-6830
Dr. Sally Purcell, DVM
Dallas, TX · No drug or device payments recorded (2025) · (214) 828-5800
Dr. Saman Ahmed, M.D.
Dallas, TX · $27 in drug and device payments (2025) · (214) 820-2346
Dr. Sameer Chaudhry, MD
Dallas, TX · No drug or device payments recorded (2025) · (214) 857-1509
Dr. Samina Zakiuddin, M.D.
Dallas, TX · No drug or device payments recorded (2025) · Telehealth · (214) 266-4200
Dr. Samuel Chan, D.O.
Dallas, TX · No drug or device payments recorded (2025) · (214) 330-3034
Dr. Samuel Eleanya, M.D.
Dallas, TX · $52 in drug and device payments (2025) · (219) 669-0700
Dr. Samuel Gakui, MD
Dallas, TX · No drug or device payments recorded (2025) · Telehealth · (214) 590-8000
Dr. Samuel Listi, MD
Dallas, TX · No drug or device payments recorded (2025) · (972) 247-8391
Dr. Samuel Mitz, MD
Dallas, TX · No drug or device payments recorded (2025) · (214) 535-7079
Dr. Samuel Ngwu, MD
Dallas, TX · No drug or device payments recorded (2025) · (214) 879-8820
Dr. Sandra Garcia
Dallas, TX · $214 in drug and device payments (2025) · Telehealth · (214) 999-9999
Dr. Sandra Kummerfeldt, MD
Dallas, TX · $15 in drug and device payments (2025) · (214) 947-2385
Dr. Sangita Pogge, M.D.
Dallas, TX · No drug or device payments recorded (2025) · Telehealth · (617) 505-1520
Dr. Santosh Mupparapu, MD
Dallas, TX · $449 in drug and device payments (2025) · (214) 217-1911
Dr. Sanu Paul, MD
Dallas, TX · No drug or device payments recorded (2025) · (214) 742-8387
Dr. Sapphire Peace, DO
Dallas, TX · No drug or device payments recorded (2025) · (214) 633-5555
Dr. Sarah Asghar, M.D
Dallas, TX · $24 in drug and device payments (2025) · (972) 566-6000
Dr. Sarita Louys, M.D.
Dallas, TX · $302 in drug and device payments (2025) · (214) 221-6362
Dr. Sarosh Ahmed, M.D.
Dallas, TX · $332 in drug and device payments (2025) · Telehealth · (214) 200-3256
Dr. Saspin Omar, MD
Dallas, TX · No drug or device payments recorded (2025) · (214) 266-4200

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.