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Michael G. O'Toole Dmd

Dentist in Boston, MA · enumerated 2011 · authorized official Michael O'Toole, Dentist.

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

National Provider Identifier

1871874388

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Registry record

Entity type Organization (Type 2)
Legal business name Michael G. O'Toole Dmd
Practice address 800 Boylston St, 2nd Floor, Boston, MA, 02199
Phone (617) 259-1100
Enumeration date Aug 30, 2011
Last updated in NPPES Aug 30, 2011

Taxonomy & classification

122300000X Dentist Dental Providers · License 20903 (MA) Primary

Authorized official

Name Michael O'Toole
Title Dentist
Phone (617) 259-1100

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 Michael G. O'Toole Dmd?
Michael G. O'Toole Dmd is registered in NPPES as a Dentist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-08-30.