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Medical Oncology in Sacramento, California

Data updated monthly · Last refresh September 2026

11 Medical Oncology providers practice in Sacramento. Listings are drawn from federal public records and are not endorsements.

Medical Oncology providers in Sacramento

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. Casie Shenoy, M.D.
Sacramento, CA · $106 in drug and device payments (2025) · Telehealth · (916) 734-2011
Dr. Delphine Ong, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-5300
Dr. Janai Carr-ascher, MD, PHD
Sacramento, CA · $6,418 in drug and device payments (2025) · Telehealth · (916) 734-5959
Dr. John Fisher, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 374-5500
Dr. Neil Patel, M.D.
Sacramento, CA · $94 in drug and device payments (2025) · (505) 822-8563
Dr. Nora Wu, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 454-6850
Dr. Randeep Sangha, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-0517
Dr. Robert Quadro, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 733-3333
Dr. Ryan Leibrandt, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-3772
Dr. Samer Shihabi, M.D.
Sacramento, CA · $65 in drug and device payments (2025) · Telehealth · (916) 733-5300
Dr. Siao-yi Wang, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · Telehealth · (916) 734-5959

Common questions

How many Medical Oncology providers are in Sacramento, California?

There are 11 Medical Oncology providers with active NPI records practicing in Sacramento, according to federal NPPES data refreshed monthly.

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 Sacramento Medical Oncology across California

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.