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Radiation Oncology in Houston, Texas

Data updated monthly · Last refresh September 2026

156 Radiation Oncology providers practice in Houston, and 45% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Radiation Oncology providers in Houston

Listed alphabetically. 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. Welela Tereffe, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 792-2121
Dr. Wendy Woodward, M.D. PHD
Houston, TX · $44 in drug and device payments (2025) · Telehealth · (713) 792-6161
Dr. Wen Jiang, M.D.
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 792-6161
Dr. Yaser Hasan
Houston, TX · No drug or device payments recorded (2025) · (832) 244-7669
Dr. Zaid Siddiqui, M.D.
Houston, TX · $247 in drug and device payments (2025) · Telehealth · (713) 566-3757
Dr. Zhongxing Liao, M.D.
Houston, TX · $158 in drug and device payments (2025) · Telehealth · (713) 792-6161

Common questions

How many Radiation Oncology providers are in Houston, Texas?

There are 156 Radiation Oncology providers with active NPI records practicing in Houston, according to federal NPPES data refreshed monthly.

How many Radiation Oncology providers in Houston received drug or device company payments?

70 of 156 (45%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider records 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.

All specialties in Houston Radiation Oncology across Texas

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.