Individual provider · Type 1 NPI

Robert Sackstein, MD PHD

Internal Medicine Physician · Boston, MA

NPI number 1306887302 Active

Practice location

100 Blossom Street, Hematology Oncology Associates COX6
Boston, MA 02114-2617

Call (617) 724-1124 Map

Fax (617) 724-1126

Mailing address

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

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000X155205 (MA)
Hematology (Internal Medicine) Physician 207RH0000X155205 (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 1306887302

Robert Sackstein, MD PHD's National Provider Identifier is 1306887302, issued on Jun 9, 2006. 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.