Individual provider · Type 1 NPI

James Stewart Lang, MD

Internal Medicine Physician · Chelsea, MA

NPI number 1528488798 Active

Practice location

151 Everett Ave
Chelsea, MA 02150-1807

Call (617) 889-8520 Map

Fax (617) 889-8571

Mailing address

55 Fruit St
Boston, MA 02114-2621

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000X269504 (MA)
Internal Medicine Physician 207R00000XMD61493634 (WA)

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 1528488798

James Stewart Lang, MD's National Provider Identifier is 1528488798, issued on Apr 25, 2014. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Chelsea, MA. The record was last updated on Oct 15, 2025.