Individual provider · Type 1 NPI

Leonard Lloyd Ellman, MD

Internal Medicine Physician · Boston, MA

NPI number 1679564322 Active

Practice location

15 Parkman St, Wac 516
Boston, MA 02114-3117

Call (617) 726-3448 Map

Fax (617) 724-3480

Mailing address

PO Box 9142, Mass General Physician Organization
Charlestown, MA 02129-9142

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000X30751 (MA)
Hematology (Internal Medicine) Physician 207RH0000X30751 (MA)

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 1679564322

Leonard Lloyd Ellman, MD's National Provider Identifier is 1679564322, issued on Nov 2, 2005. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Boston, MA. The record was last updated on Jul 13, 2026.