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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. Randy Jackson, M.D.
Texarkana, TX · $21 in drug and device payments (2025) · (903) 614-5111
Dr. Roderick Echols, MD
Texarkana, TX · No drug or device payments recorded (2025) · (903) 614-5110
Dr. Stephen Glenn, MD
Texarkana, TX · $21 in drug and device payments (2025) · (903) 614-5111
Dr. Stephen Parish, MD
Texarkana, TX · No drug or device payments recorded (2025) · (903) 614-3000
Dr. Syed Mazher, M.D.
Texarkana, TX · $127 in drug and device payments (2025) · (870) 779-2750
Dr. Thomas Alston, MD
Texarkana, TX · No drug or device payments recorded (2025) · (903) 735-5330
Dr. Troy Potter, MD
Texarkana, TX · $496 in drug and device payments (2025) · (903) 614-3000
Dr. Ukana Bassey, D.O
Texarkana, TX · No drug or device payments recorded (2025) · (903) 614-3000
Dr. Zubaer Dawlah, M.D.
Texarkana, TX · No drug or device payments recorded (2025) · Telehealth · (903) 614-3000
Dr. Alfredo Nodarse, M.D.
Texas City, TX · No drug or device payments recorded (2025) · (409) 948-8521
Dr. Bich Nguyen, M.D.
Texas City, TX · $369 in drug and device payments (2025) · (409) 948-8521
Dr. Hemalatha Iyer, M.D.
Texas City, TX · $90 in drug and device payments (2025) · Telehealth · (409) 948-8521
Dr. Michelle Mercatante, M.D.
Texas City, TX · $32 in drug and device payments (2025) · Telehealth · (409) 772-2222
Dr. Nusrat Soleja, M.D.
Texas City, TX · No drug or device payments recorded (2025) · (409) 935-9800
Dr. Sanjay Khanduja, M.D.
Texas City, TX · No drug or device payments recorded (2025) · (409) 986-1129
Dr. Viola Anderson, M.D.
Texas City, TX · $122 in drug and device payments (2025) · (409) 948-8521
Dr. Lida Aghdam, MD
The Colony, TX · No drug or device payments recorded (2025) · (817) 488-7878
Dr. Lorinda Torres, M.D.
The Colony, TX · $67 in drug and device payments (2025) · (214) 619-1770
Dr. Utkarsh Patel
The Colony, TX · No drug or device payments recorded (2025) · (817) 609-9811
Dr. Douglas Mcmullen, MD
The Hills, TX · No drug or device payments recorded (2025) · (512) 327-4711
Dr. Alejandro Jaime Villalonga, MD
The Woodlands, TX · No drug or device payments recorded (2025) · (936) 270-2000
Dr. Amy Reif, D.O.
The Woodlands, TX · No drug or device payments recorded (2025) · Telehealth · (713) 637-1146
Dr. Ana Molina-anstee, MD
The Woodlands, TX · $20 in drug and device payments (2025) · (713) 798-7810
Dr. Balakrishna Mangapuram, M.D.
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 364-6677
Dr. Brigani Amante, M.D., P.T.
The Woodlands, TX · $91 in drug and device payments (2025) · Telehealth · (464) 781-2223
Dr. Cesar Uy, MD
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 587-5078
Dr. Crystal Reece, MD
The Woodlands, TX · $1,649 in drug and device payments (2025) · (936) 270-2799
Dr. Dean Dalili, M.D.
The Woodlands, TX · $122 in drug and device payments (2025) · (504) 577-1611
Dr. Evelyn Chua, MD
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 810-9195
Dr. Feroze Hussain, MD
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 419-5815
Dr. Harish Rao, M.D.
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 296-3362
Dr. Ikedinobi Eni, MD
The Woodlands, TX · $359 in drug and device payments (2025) · Telehealth · (936) 321-1946
Dr. Jessica Aheron, MD
The Woodlands, TX · $69 in drug and device payments (2025) · Telehealth · (281) 292-1191
Dr. Kesany Boupapanh
The Woodlands, TX · $24 in drug and device payments (2025) · (936) 270-2099
Dr. Kimberly Nkemakolam, MD
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 296-8788
Dr. Lin Wang, MD
The Woodlands, TX · No drug or device payments recorded (2025) · (936) 321-6787
Dr. Mamta Jain, MD
The Woodlands, TX · $584 in drug and device payments (2025) · (281) 836-3627
Dr. Marlaina Bonnes Neumann, MD
The Woodlands, TX · $1,568 in drug and device payments (2025) · Telehealth · (281) 292-1191
Dr. Morris Orocofsky, M.D.
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 298-7058
Dr. Mythili Vedala, M.D
The Woodlands, TX · $960 in drug and device payments (2025) · Telehealth · (281) 255-4900
Dr. Nishi Gupta, MD
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 587-5078
Dr. Nkoli Iloanya, M.D.
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 459-0065
Dr. Philbert Yau, M.D.
The Woodlands, TX · $33 in drug and device payments (2025) · (281) 363-3560
Dr. Rachel Hogan, DO
The Woodlands, TX · $281 in drug and device payments (2025) · Telehealth · (936) 270-3073
Dr. Rama Laxman, M.D
The Woodlands, TX · $19 in drug and device payments (2025) · (281) 419-6466
Dr. Ruby John, MD
The Woodlands, TX · $167 in drug and device payments (2025) · (281) 356-1945
Dr. Shilpa Vaidya, MD
The Woodlands, TX · $1,614 in drug and device payments (2025) · Telehealth · (281) 737-2611
Dr. Tam Truong, M.D.
The Woodlands, TX · $225 in drug and device payments (2025) · (281) 296-8788
Dr. Thomas Sloan, MD
The Woodlands, TX · $14 in drug and device payments (2025) · (281) 363-2266
Dr. Trinh Nguyen, DO
The Woodlands, TX · No drug or device payments recorded (2025) · (281) 296-8788

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.