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Hematology & Oncology in Irvine, California

Data updated monthly · Last refresh September 2026

13 Hematology & Oncology providers practice in Irvine. Listings are drawn from federal public records and are not endorsements.

Hematology & Oncology providers in Irvine

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. Charisma Mylavarapu, D.O.
Irvine, CA · $568 in drug and device payments (2025) · Telehealth · (888) 333-4673
Dr. David Lou, M.D., PH.D.
Irvine, CA · $96 in drug and device payments (2025) · (949) 932-5000
Dr. David Xu, MD
Irvine, CA · $91 in drug and device payments (2025) · Telehealth · (949) 653-2959
Dr. Hyun Don Yun, MD
Irvine, CA · $1,222 in drug and device payments (2025) · (949) 414-9337
Dr. Lisa Lee, M.D.
Irvine, CA · $50 in drug and device payments (2025) · Telehealth · (949) 671-4673
Dr. Nader Kashani, MD
Irvine, CA · $371 in drug and device payments (2025) · Telehealth · (949) 777-5970
Dr. Nerses Tchekmedyian, M.D.
Irvine, CA · $103 in drug and device payments (2025) · Telehealth · (949) 671-4673
Dr. Rafi Ahmed, MD
Irvine, CA · $1,965 in drug and device payments (2025) · Telehealth · (949) 764-4060
Dr. Samer Alkassis
Irvine, CA · $374 in drug and device payments (2025) · Telehealth · (949) 653-2959
Dr. Sudarsan Kollimuttathuillam, MD
Irvine, CA · $7,691 in drug and device payments (2025) · Telehealth · (949) 333-7580
Dr. Tara Seery
Irvine, CA · $10,963 in drug and device payments (2025) · Telehealth · (949) 764-5347
Dr. Tiffanie Do, M.D.
Irvine, CA · No drug or device payments recorded (2025) · (833) 574-2273
Dr. Zorawar Noor, M.D., M.H.S.
Irvine, CA · $29 in drug and device payments (2025) · Telehealth · (949) 653-2959

Conditions Hematology & Oncology providers in Irvine, 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.

Common questions

How many Hematology & Oncology providers are in Irvine, California?

There are 13 Hematology & Oncology providers with active NPI records practicing in Irvine, according to federal NPPES data refreshed monthly.

What conditions do Hematology & Oncology providers in Irvine treat?

Hematology & Oncology providers in Irvine 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 Irvine Hematology & 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.