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Dr. Karla Guinn Thompson, DDS

Orthodontics and Dentofacial Orthopedics Dentistry in South Pasadena, CA · enumerated 2006 · practices at Karla L. Guinn DDS Inc..

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

National Provider Identifier

1154420677

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Registry record

Entity type Individual (Type 1)
Name Dr. Karla Guinn Thompson
Credential DDS
Sex Female
Practice address 1414 Fair Oaks Ave Ste 7, South Pasadena, CA, 91030
Phone (626) 788-5911
Fax (626) 399-0694
Enumeration date Sep 21, 2006
Last updated in NPPES Feb 9, 2017

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 49538 (CA) 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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Karla Thompson?
Karla Thompson is registered in NPPES with the primary taxonomy of Orthodontics and Dentofacial Orthopedics Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-09.