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John W. Zarrella, D.M.D., LLC.

General Practice Dentistry in Ashland, MA · enumerated 2017 · authorized official John Zarrella, Owner.

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

National Provider Identifier

1083143697

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Registry record

Entity type Organization (Type 2)
Legal business name John W. Zarrella, D.M.D., LLC.
Practice address 171 Main Street, 100, Ashland, MA, 01721
Phone (508) 881-1280
Fax (508) 881-3529
Enumeration date Jun 7, 2017
Last updated in NPPES Jun 7, 2017

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License D16914 (MA) Primary

Authorized official

Name John Zarrella
Title Owner
Phone (508) 881-1280

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 John W. Zarrella, D.M.D., LLC.?
John W. Zarrella, D.M.D., LLC. is registered in NPPES as a General Practice Dentistry (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 2017-06-07.