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Katherine L Phaneuf, MD

Internal Medicine Physician in Westford, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1174571228

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Registry record

Entity type Individual (Type 1)
Name Katherine L Phaneuf
Credential MD
Sex Female
Practice address 133 Littleton Rd, Suite 202, Westford, MA, 01886
Phone (978) 577-1946
Fax (978) 692-4716
Enumeration date May 4, 2006
Last updated in NPPES Jul 23, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 78728 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
3193497 Medicaid MA -
J30223 Other MA BCBS OF MA
078728 Other MA TUFTS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Katherine Phaneuf?
The National Provider Identifier (NPI) for Katherine Phaneuf is 1174571228, a Type 1 (individual) record in the CMS NPPES registry.
Where does Katherine Phaneuf practice?
The practice location on file with NPPES is in Westford, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-23.