Individual provider · Type 1 NPI

Mark R. Selby, DO

Internal Medicine Physician · Pittsfield, MA

NPI number 1265476782 Active

Practice location

73 Eagle St
Pittsfield, MA 01201-4714

Call (413) 499-2672 Map

Fax (413) 447-8825

Mailing address

PO Box 1007
Ashfield, MA 01330-1007

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XMA43107 (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 1265476782

Mark R. Selby, DO's National Provider Identifier is 1265476782, issued on Jun 15, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Pittsfield, MA. The record was last updated on Jul 13, 2026.