Hematology & Oncology in Frederick, Maryland
Data updated monthly · Last refresh September 2026
15 Hematology & Oncology providers practice in Frederick. Listings are drawn from federal public records and are not endorsements.
Hematology & Oncology providers in Frederick
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. Amr Hegazi, MDFrederick, MD · $3,026 in drug and device payments (2025) ·
(301) 695-6777 Dr. Andrew Li, MDFrederick, MD · $3,089 in drug and device payments (2025) · Telehealth ·
(301) 695-6777 Dr. Changqing Xie, M.D.Frederick, MD · $290 in drug and device payments (2025) · Telehealth ·
(240) 215-6310 Dr. Dongyan Liu, M.D.Frederick, MD · $869 in drug and device payments (2025) · Telehealth ·
(240) 215-6310 Dr. Giovanni Melillo, MDFrederick, MD · No drug or device payments recorded (2025) ·
(301) 639-2190 Dr. Kenneth Bertram, MDFrederick, MD · No drug or device payments recorded (2025) ·
(301) 619-4666 Dr. Lydia Onyima, DNPFrederick, MD · No drug or device payments recorded (2025) ·
(240) 566-4100 Dr. Mouhamad Bazzi, MDFrederick, MD · $1,517 in drug and device payments (2025) ·
(301) 682-2988 Dr. Natalia Marina, M.D.Frederick, MD · $43 in drug and device payments (2025) · Telehealth ·
(301) 662-8477 Dr. Oscar Raymond Bascug, DOFrederick, MD · $18 in drug and device payments (2025) ·
(240) 215-6310 Dr. Paul Rausch, MDFrederick, MD · No drug or device payments recorded (2025) ·
(301) 662-8477 Dr. Sadaf Taimur, MDFrederick, MD · $2,718 in drug and device payments (2025) · Telehealth ·
(301) 695-6777 Dr. Saro Sarkisian, M.D.Frederick, MD · $12,667 in drug and device payments (2025) · Telehealth ·
(301) 662-8477 Dr. Xiao-wei Tan, MDFrederick, MD · No drug or device payments recorded (2025) ·
(301) 695-6777 Dr. Yun Oh, M.D.Frederick, MD · No drug or device payments recorded (2025) ·
(301) 695-6777 Conditions Hematology & Oncology providers in Frederick, 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 Frederick, Maryland?There are 15 Hematology & Oncology providers with active NPI records practicing in Frederick, according to federal NPPES data refreshed monthly.
What conditions do Hematology & Oncology providers in Frederick treat?Hematology & Oncology providers in Frederick 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 Frederick Hematology & Oncology across Maryland