Hematology & Oncology in Santa Rosa, California
Data updated monthly · Last refresh September 2026
13 Hematology & Oncology providers practice in Santa Rosa. Listings are drawn from federal public records and are not endorsements.
Hematology & Oncology providers in Santa Rosa
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. Christine Kaiser, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) · Telehealth ·
(707) 393-4000 Dr. Helen Collins, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 546-4062 Dr. Ian Anderson, M.D.Santa Rosa, CA · $778 in drug and device payments (2025) · Telehealth ·
(707) 528-1050 Dr. Jarrod Holmes, MDSanta Rosa, CA · $60,265 in drug and device payments (2025) · Telehealth ·
(707) 528-1050 Dr. Jeffrey Ye, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 571-4000 Dr. Justin Grenet, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 528-1050 Dr. Leroy Wayne Keiser, M.D.Santa Rosa, CA · $13,345 in drug and device payments (2025) · Telehealth ·
(707) 528-1050 Dr. Marek Bozdech, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 546-4062 Dr. Nicolaj Andersen, MDSanta Rosa, CA · No drug or device payments recorded (2025) ·
(707) 571-4000 Dr. Peter Brett, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) ·
(707) 521-7750 Dr. Vineeth Tatineni, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) · Telehealth ·
(707) 571-3755 Dr. Yao Yao Pollock, MDSanta Rosa, CA · $540 in drug and device payments (2025) · Telehealth ·
(707) 528-1050 Dr. Zeyad Kanaan, M.D.Santa Rosa, CA · No drug or device payments recorded (2025) · Telehealth ·
(707) 521-7750 Conditions Hematology & Oncology providers in Santa Rosa, California commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Hematology & Oncology providers. Individual practices vary, so confirm with the provider before booking.
- Breast cancer
- Lung cancer
- Lymphoma
- Leukemia
- Anemia
- Blood disorders
Common questions
How many Hematology & Oncology providers are in Santa Rosa, California?There are 13 Hematology & Oncology providers with active NPI records practicing in Santa Rosa, according to federal NPPES data refreshed monthly.
What conditions do Hematology & Oncology providers in Santa Rosa treat?Hematology & Oncology providers in Santa Rosa commonly treat breast cancer, lung cancer, lymphoma, leukemia, anemia and related conditions. Individual practices vary, so confirm with the provider before booking.
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 Santa Rosa Hematology & Oncology across California
