Individual provider · Type 1 NPI

Mayssam El Najjar

Internal Medicine Physician · Boston, MA

NPI number 1821764622 Active

Practice location

736 Cambridge St
Boston, MA 02135-2907

Mailing address

707 President St Apt 1614
Baltimore, MD 21202-4553

Other practice locations

  • 4940 Eastern Ave, Baltimore, MD 21224-2735 · (410) 550-0100

Specialties and licenses

TaxonomyCodeLicense
Student in an Organized Health Care Education/Training Program 390200000X289754 (MA)
Internal Medicine Physician Primary 207R00000X289754 (MA)
Counselor 101Y00000XNone listed

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 1821764622

Mayssam El Najjar's National Provider Identifier is 1821764622, issued on Aug 20, 2021. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Boston, MA. The record was last updated on Jun 25, 2025.