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Winchester Physician Associates

Pediatrics Physician in Arlington, MA · enumerated 2005 · authorized official Eileen Wills, Billing Manager.

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

National Provider Identifier

1093797706

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Registry record

Entity type Organization (Type 2)
Legal business name Winchester Physician Associates
Other name <Unavail>
Practice address 29 Massachusetts Ave, Arlington, MA, 02474
Phone (781) 643-4507
Fax (781) 646-6151
Enumeration date Nov 17, 2005
Last updated in NPPES Jan 5, 2009

Taxonomy & classification

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 71232 (MA) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 70683 (MA) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 55709 (MA) Primary

Authorized official

Name Eileen Wills
Title Billing Manager
Phone (781) 756-7273

Other identifiers

Identifier Type State Issuer
9777229 Medicaid MA -

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Winchester Physician Associates?
Winchester Physician Associates is registered in NPPES as a Pediatrics Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-05.