Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Merrimack Family Medicine PC

Q: What type of organization is Merrimack Family Medicine PC?

Merrimack Family Medicine PC is registered in NPPES as a Family Medicine Physician (its primary provider taxonomy).

Family Medicine Physician in Tewksbury, MA · enumerated 2007 · authorized official Donald Miller, President.

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

National Provider Identifier

1033392022

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Registry record

Entity type Organization (Type 2)

Legal business name Merrimack Family Medicine PC

Practice address 170 Main Street, Suite 606, Tewksbury, MA, 01876

Phone (978) 851-4141

Enumeration date Dec 12, 2007

Last updated in NPPES Dec 12, 2007

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 49826 (MA) Primary

Authorized official

Name Donald Miller

Title President

Phone (978) 851-4141

Other identifiers

Identifier	Type	State	Issuer
9763473	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.

Read the full guide → Validate an NPI →

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 Merrimack Family Medicine PC?

Merrimack Family Medicine PC is registered in NPPES as a Family Medicine Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-12.