Individual provider · Type 1 NPI

William T. O'Connor, MD

Internal Medicine Physician · Millbury, MA

NPI number 1699756650 Active

Practice location

65 Canal St
Millbury, MA 01527-3266

Call (508) 865-9960 Map

Mailing address

PO Box 62, Turnpike Station
Shrewsbury, MA 01545-0062

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000X38138 (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 1699756650

William T. O'Connor, MD's National Provider Identifier is 1699756650, issued on Nov 8, 2005. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Millbury, MA. The record was last updated on Jul 13, 2026.