Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Francis Herlihy IV, DMD

Dentist in North Easton, MA · enumerated 2006.

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

National Provider Identifier

1841306198

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Francis Herlihy IV

Credential DMD

Sex Male

Practice address 191 Washington St, North Easton, MA, 02356

Phone (508) 238-1027

Fax (508) 238-1475

Enumeration date Aug 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License 18280 (MA) Primary

122300000X Dentist Dental Providers · License 02889 (RI) Secondary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

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 the NPI number for Thomas Herlihy?

The National Provider Identifier (NPI) for Thomas Herlihy is 1841306198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Herlihy practice?

The practice location on file with NPPES is in North Easton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.