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Radiation Oncology in Stanford, California

Data updated monthly · Last refresh September 2026

43 Radiation Oncology providers practice in Stanford, and 26% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Radiation Oncology providers in Stanford

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. Adam Bartret, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Andrew Martella, M.D.
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Anusha Kalbasi, MD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Beth Beadle, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Beth Neilsen, MD, PHD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Billy Loo, MD, PHD
Stanford, CA · $144 in drug and device payments (2025) · Telehealth · (650) 736-7143
Dr. Carol Marquez, MD
Stanford, CA · $147 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Catherine Salem, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Clement Ho, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Daniel Kapp, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-6171
Dr. Daniella Klebaner, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Elham Rahimy, M.D.
Stanford, CA · $27 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Elizabeth Kidd, M.D.
Stanford, CA · $184 in drug and device payments (2025) · Telehealth · (650) 723-6171
Dr. Everett Moding, MD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (336) 832-7272
Dr. Faisal Ahmed, MD
Stanford, CA · $47 in drug and device payments (2025) · (650) 723-6171
Dr. Farhan Amanullah, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-8463
Dr. Hilary Bagshaw, MD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 736-2457
Dr. Jason Ross, MD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Jennifer Jones, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-6171
Dr. Kathleen Horst, M.D.
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 736-7715
Dr. Kevin Day, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-4527
Dr. Lynn Million, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-5055
Dr. Mallika Marar, MD
Stanford, CA · $135 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Mark Buyyounouski, M.D.
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Maximilian Diehn, M.D./PH.D.
Stanford, CA · $6,465 in drug and device payments (2025) · Telehealth · (650) 723-6171
Dr. Melanie Smitt, MD
Stanford, CA · No drug or device payments recorded (2025) · (650) 498-5710
Dr. Michael Binkley, M.D.
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Michael Clarke, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 498-5710
Dr. Nam Cho, M.D., PH.D.
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-6661
Dr. Nicholas Trakul, MD, PHD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Noah Kastelowitz-lieberman, MD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Quynh-thu Le, M.D.
Stanford, CA · $9,669 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Richard Hoppe, M.D.
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-5510
Dr. Rishabh Chaudhari, MD
Stanford, CA · $46 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Sammy Ashouri, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 725-1812
Dr. Sandra Zaky, MD
Stanford, CA · $47 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Santino Butler, MD
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Sarah Donaldson, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Scott Bratman, MD, PHD
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-6171
Dr. Scott Soltys, MD
Stanford, CA · $1,412 in drug and device payments (2025) · Telehealth · (650) 724-1569
Dr. Steven Hancock, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 723-6440
Dr. Wendy Hara, M.D.
Stanford, CA · No drug or device payments recorded (2025) · (650) 725-4779
Dr. Yushen Qian, M.D.
Stanford, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000

Common questions

How many Radiation Oncology providers are in Stanford, California?

There are 43 Radiation Oncology providers with active NPI records practicing in Stanford, according to federal NPPES data refreshed monthly.

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

11 of 43 (26%) 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 Stanford Radiation Oncology across California

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.