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

Corlis L Sonnenberg, DDS

General Practice Dentistry in Graham, TX · enumerated 2007.

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

National Provider Identifier

1134344666

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Registry record

Entity type Individual (Type 1)

Name Corlis L Sonnenberg

Credential DDS

Sex Male

Practice address Graham, TX, 76450

Phone (940) 549-0350

Fax (940) 549-4261

Enumeration date Apr 17, 2007

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 10740 (TX) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 Corlis Sonnenberg?

The National Provider Identifier (NPI) for Corlis Sonnenberg is 1134344666, a Type 1 (individual) record in the CMS NPPES registry.

Where does Corlis Sonnenberg practice?

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

Other providers at this practice address

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James Brewer General Practice Dentistry · Graham, TX NPI 1821383084

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