Hematologists and Oncologists in Washington DC
Data updated monthly · Last refresh October 2026
80 Hematology & Oncology providers practice in Washington DC, including 28 (35%) offering telehealth. The largest concentration is in Washington. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
80providers
28telehealth
Washingtontop city
Hematology & Oncology providers in Washington DC
Listed by city, largest first. 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. Mounika GangireddyWashington, DC · $75 in drug and device payments (2025) · Telehealth ·
(202) 877-4677 Dr. Mukhtar Hassan, MDWashington, DC · No drug or device payments recorded (2025) ·
(202) 865-6625 Dr. Nadia Ashai, MDWashington, DC · $3,891 in drug and device payments (2025) · Telehealth ·
(202) 444-2223 Dr. Nancy Scher, M.D.Washington, DC · No drug or device payments recorded (2025) ·
(202) 745-8134 Dr. Natasha Jain, M.B.B.SWashington, DC · $456 in drug and device payments (2025) · Telehealth ·
(202) 877-8271 Dr. Neil Shah, M.D.Washington, DC · $20,606 in drug and device payments (2025) · Telehealth ·
(202) 444-0198 Dr. Nicole Laslett, DOWashington, DC · No drug or device payments recorded (2025) · Telehealth ·
(202) 537-4000 Dr. Pamela Seam, M.D.Washington, DC · No drug or device payments recorded (2025) ·
(202) 346-3700 Dr. Patricia Oneal, MDWashington, DC · No drug or device payments recorded (2025) ·
(202) 865-6625 Dr. Paul Leger, M.D.Washington, DC · $961 in drug and device payments (2025) · Telehealth ·
(202) 444-2223 Dr. Pavani Chalasani, M.DWashington, DC · $7,805 in drug and device payments (2025) ·
(202) 741-2277 Dr. Pia Herbolsheimer, MDWashington, DC · No drug or device payments recorded (2025) ·
(202) 877-7000 Dr. Piyapong Vongkovit, MDWashington, DC · No drug or device payments recorded (2025) · Telehealth ·
(202) 346-3700 Dr. Prashanth Ashok KumarWashington, DC · $208 in drug and device payments (2025) · Telehealth ·
(202) 677-6903 Dr. Puja Arora, M.D.Washington, DC · $2,683 in drug and device payments (2025) · Telehealth ·
(202) 877-8278 Dr. Ravi Madan, M.D.Washington, DC · $166 in drug and device payments (2025) ·
(973) 722-4058 Dr. Ravi Sarma, M.D.Washington, DC · $5,829 in drug and device payments (2025) · Telehealth ·
(202) 865-6625 Dr. Reetu Mukherji, M.D.Washington, DC · $13,831 in drug and device payments (2025) · Telehealth ·
(202) 444-2223 Dr. Robert Siegel, M.D.Washington, DC · $1,436 in drug and device payments (2025) ·
(202) 741-3333 Dr. Robert WarrenWashington, DC · No drug or device payments recorded (2025) ·
(202) 444-2223 Dr. Samah Nassereddine, M.DWashington, DC · $438 in drug and device payments (2025) · Telehealth ·
(202) 741-3000 Dr. Sara Horton, MDWashington, DC · $142 in drug and device payments (2025) ·
(202) 269-7000 Dr. Sarah SewaralthahabWashington, DC · No drug or device payments recorded (2025) ·
(202) 877-2824 Dr. Sarah Waheed, MDWashington, DC · No drug or device payments recorded (2025) · Telehealth ·
(202) 660-6500 Dr. Sonal PaulWashington, DC · $1,931 in drug and device payments (2025) ·
(202) 741-2210 Dr. Sunil Adige, M.D.Washington, DC · No drug or device payments recorded (2025) ·
(202) 741-2210 Dr. Susan Honig, M.D.Washington, DC · No drug or device payments recorded (2025) ·
(202) 444-0848 Dr. Suthee Rapisuwon, M.D.Washington, DC · $5,336 in drug and device payments (2025) · Telehealth ·
(202) 687-8901 Dr. Ujjwal KarkiWashington, DC · $174 in drug and device payments (2025) ·
(202) 444-1649 Dr. Vered Stearns, M.D.Washington, DC · $19,936 in drug and device payments (2025) · Telehealth ·
(202) 537-4686 Conditions Hematology & Oncology providers in Washington DC 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 Washington DC?There are 80 Hematology & Oncology providers with active NPI records practicing in Washington DC, according to federal NPPES data refreshed monthly.
Do Hematology & Oncology providers in Washington DC offer telehealth?Yes. 28 of the 80 Hematology & Oncology providers in Washington DC (about 35%) report offering telehealth services in CMS data.
Which cities in Washington DC have the most Hematology & Oncology providers?Washington (80) have the highest concentration of Hematology & Oncology providers in Washington DC.
How many Hematology & Oncology providers in Washington DC received drug or device company payments?43 of 80 Hematology & Oncology providers in Washington DC (54%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Hematology & Oncology providers in Washington DC treat?Hematology & Oncology providers 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 counts and profiles 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.
Which hospitals do Hematologists and Oncologists in Washington DC work at?According to CMS facility affiliation records, the Washington DC hospitals where the most Hematologists and Oncologists hold privileges are Medstar Georgetown University Hospital in Washington; Medstar Washington Hospital Center in Washington; George Washington Univ Hospital in Washington.
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