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

Geoffrey Barnum, DMD

Dentist in Glen Rose, TX · enumerated 2011.

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

National Provider Identifier

1104106228

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Registry record

Entity type Individual (Type 1)

Name Geoffrey Barnum

Credential DMD

Sex Male

Practice address Glen Rose, TX, 76043

Phone (254) 898-4646

Enumeration date Aug 19, 2011

Last updated in NPPES Oct 26, 2020

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

Taxonomy & licenses

122300000X Dentist Dental Providers · License 10226 (AZ) Secondary

122300000X Dentist Dental Providers · License 27138 (TX) Primary

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 Geoffrey Barnum?

The National Provider Identifier (NPI) for Geoffrey Barnum is 1104106228, a Type 1 (individual) record in the CMS NPPES registry.

Where does Geoffrey Barnum practice?

The practice location on file with NPPES is in Glen Rose, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Glen Rose Family Dental Preferred Provider Organization · Glen Rose, TX NPI 1003351271 Gbcc Dental Pllc General Practice Dentistry · Glen Rose, TX NPI 1407397144

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-26.