Individual provider · Type 1 NPI

Ethan Diamond, MD

Internal Medicine Physician · Washington, DC

NPI number 1639873102 Active

Practice location

3800 Reservoir Rd NW Dept Of
Washington, DC 20007-2113

Fax (877) 303-1460

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XMD600006067 (DC)

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

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About NPI 1639873102

Ethan Diamond, MD's National Provider Identifier is 1639873102, issued on Mar 29, 2023. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Washington, DC. The record was last updated on Aug 6, 2026.