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Dr. William Dennis Brennick, D.D.S.

General Practice Dentistry in Butte, MT · enumerated 2007 · practices at Butte Family Dental.

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

National Provider Identifier

1306968375

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Registry record

Entity type Individual (Type 1)
Name Dr. William Dennis Brennick
Credential D.D.S.
Sex Male
Practice address 820 Sampson St, Butte, MT, 59701
Phone (406) 494-7080
Fax (406) 494-4634
Enumeration date Apr 3, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 1475 (MT) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier Type State Issuer
011-7104 Medicaid MT -

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

Where does William Brennick practice?
The practice location on file with NPPES is in Butte, MT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Brennick?
The National Provider Identifier (NPI) for William Brennick is 1306968375, a Type 1 (individual) record in the CMS NPPES registry.

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