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Arnold J Hill MD PC

Internal Medicine Physician in Marlborough, MA · enumerated 2005 · authorized official Arnold Hill, President.

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

National Provider Identifier

1285628271

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Registry record

Entity type Organization (Type 2)
Legal business name Arnold J Hill MD PC
Practice address 320 Bolton St, Marlborough, MA, 01752
Phone (508) 485-0104
Fax (508) 481-4727
Enumeration date Sep 6, 2005
Last updated in NPPES Feb 18, 2010

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Arnold Hill
Title President
Phone (508) 485-0104

Other identifiers

Identifier Type State Issuer
9721347 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 type of organization is Arnold J Hill MD PC?
Arnold J Hill MD PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-18.