Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Oswaldo Castro, MD

Individual provider Hematology (Internal Medicine) Physician · NPI 1902022825

Oswaldo Castro, MD is a Hematology (Internal Medicine) Physician in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2007.

Licensed in
DC
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

520 W St NW
Washington, DC 20059-0001
Phone: (202) 865-8291
Fax: (202) 232-6719
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence MD25814 (DC)

Record details

NPI number1902022825
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 18, 2007
Last updated in NPPESJuly 8, 2007
Mailing address9128 Orchard Brook Dr, Potomac, MD 20854-2403

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