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Merrimack Valley Gastroenterology, PC

Gastroenterology Physician in North Andover, MA · enumerated 2006 · authorized official Francis Macmillan, President.

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

National Provider Identifier

1033130919

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Registry record

Entity type Organization (Type 2)
Legal business name Merrimack Valley Gastroenterology, PC
Practice address 200 Sutton St Ste 140, North Andover, MA, 01845
Phone (978) 521-3681
Fax (978) 521-3682
Enumeration date Jul 23, 2006
Last updated in NPPES Apr 26, 2018

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 152953 (MA) Primary

Authorized official

Name Francis Macmillan
Title President
Phone (978) 521-3681

Other identifiers

Identifier Type State Issuer
9735780 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 Merrimack Valley Gastroenterology, PC?
Merrimack Valley Gastroenterology, PC is registered in NPPES as a Gastroenterology 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 2018-04-26.