NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Theresa Conena Brennan, RDH BS

Dental Hygienist in Boston, MA · enumerated 2018 · practices at Trustees of Tufts College.

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

National Provider Identifier

1063902906

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Registry record

Entity type Individual (Type 1)
Name Theresa Conena Brennan
Credential RDH BS
Sex Female
Practice address Boston, MA, 02111
Enumeration date May 16, 2018
Last updated in NPPES May 16, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License DH5588 (MA) Primary

Other identifiers

Identifier Type State Issuer
110000011J 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 is the NPI number for Theresa Brennan?
The National Provider Identifier (NPI) for Theresa Brennan is 1063902906, a Type 1 (individual) record in the CMS NPPES registry.
Where does Theresa Brennan practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-16.