Individual provider · Type 1 NPI

Janarthanan Someswarananthan, MD

Internal Medicine Physician · Chelmsford, MA

NPI number 1134212830 Active

Practice location

290 Littleton Rd Unit 3
Chelmsford, MA 01824-3429

Call (978) 685-2460 Map

Other practice locations

  • 25 Highland Ave, Newburyport, MA 01950-3867 · (978) 463-1000

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician 207R00000XME83087 (FL)
Hospitalist Physician 208M00000X230684 (MA)
Internal Medicine Physician Primary 207R00000X230684 (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 1134212830

Janarthanan Someswarananthan, MD's National Provider Identifier is 1134212830, issued on Oct 2, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Chelmsford, MA. The record was last updated on Apr 13, 2026.