Hematology & Oncology in Rockville, Maryland
Data updated monthly · Last refresh September 2026
18 Hematology & Oncology providers practice in Rockville. Listings are drawn from federal public records and are not endorsements.
Hematology & Oncology providers in Rockville
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. Barnett Kramer, M.D.Rockville, MD · No drug or device payments recorded (2025) ·
(301) 496-1508 Dr. Bindu George, MDRockville, MD · No drug or device payments recorded (2025) ·
(301) 827-9419 Dr. Ed Ashtar, M.D., F.A.C.P.Rockville, MD · No drug or device payments recorded (2025) ·
(240) 477-6620 Dr. Farah Zia, MDRockville, MD · $16 in drug and device payments (2025) ·
(301) 496-6986 Dr. George Sotos, M.D.Rockville, MD · $906 in drug and device payments (2025) · Telehealth ·
(301) 424-6231 Dr. James Brown, M.D.Rockville, MD · No drug or device payments recorded (2025) ·
(301) 424-6231 Dr. James Xu, M.D.Rockville, MD · $2,499 in drug and device payments (2025) · Telehealth ·
(240) 618-0275 Dr. John Wallmark, M.D.Rockville, MD · $2,478 in drug and device payments (2025) · Telehealth ·
(301) 424-6231 Dr. Joseph Haggerty, M.D.Rockville, MD · $37 in drug and device payments (2025) ·
(301) 424-6231 Dr. Leon Hwang, M.D.Rockville, MD · $17 in drug and device payments (2025) ·
(301) 548-5768 Dr. Lisa Arsenault, PARockville, MD · No drug or device payments recorded (2025) ·
(301) 424-6231 Dr. Manish Agrawal, M.D.Rockville, MD · No drug or device payments recorded (2025) ·
(301) 424-6231 Dr. Naoko Takebe, M.D. PHD.Rockville, MD · $477 in drug and device payments (2025) ·
(240) 276-6565 Dr. Nelson Kalil, M.D.Rockville, MD · $6,224 in drug and device payments (2025) ·
(240) 467-5888 Dr. Nicholas Farrell, MDRockville, MD · $1,095 in drug and device payments (2025) · Telehealth ·
(301) 424-6231 Dr. Peter Bross, M.D.Rockville, MD · $34 in drug and device payments (2025) ·
(301) 827-5378 Dr. Ronald Lieberman, M.D.Rockville, MD · No drug or device payments recorded (2025) ·
(301) 312-1445 Dr. Shannon O'connor, M.D.Rockville, MD · $566 in drug and device payments (2025) · Telehealth ·
(301) 424-6231 Conditions Hematology & Oncology providers in Rockville, Maryland 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 Rockville, Maryland?There are 18 Hematology & Oncology providers with active NPI records practicing in Rockville, according to federal NPPES data refreshed monthly.
What conditions do Hematology & Oncology providers in Rockville treat?Hematology & Oncology providers in Rockville 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 Rockville Hematology & Oncology across Maryland
