HealthcareDiscovery.AI / Doctors / Washington DC / Washington / Hematology (Internal Medicine)

Hematology (Internal Medicine) in Washington, Washington DC

Data updated monthly · Last refresh September 2026

9 Hematology (Internal Medicine) providers practice in Washington. Listings are drawn from federal public records and are not endorsements.

Hematology (Internal Medicine) providers in Washington

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. Geraldine Schechter, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 745-8135
Dr. Gustavo Rivero, M.D.
Washington, DC · $4,866 in drug and device payments (2025) · Telehealth · (202) 444-3736
Dr. Jennifer Kanakry, M.D.
Washington, DC · $322 in drug and device payments (2025) · (202) 444-3736
Dr. Karan Jatwani, MD
Washington, DC · $1,096 in drug and device payments (2025) · Telehealth · (202) 677-6903
Dr. Mark Roschewski, MD
Washington, DC · No drug or device payments recorded (2025) · Telehealth · (202) 782-4950
Dr. Min-fu Tsan, M.D., PH.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 745-8544
Dr. Oswaldo Castro, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 865-8291
Dr. Richard Kaufman, MD
Washington, DC · No drug or device payments recorded (2025) · (202) 296-0670
Dr. Thomas Havell, M.D.
Washington, DC · No drug or device payments recorded (2025) · (202) 243-4480

Common questions

How many Hematology (Internal Medicine) providers are in Washington, Washington DC?

There are 9 Hematology (Internal Medicine) providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.

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 Washington Hematology (Internal Medicine) across Washington DC

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.