Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Elizabeth E Williamson, DDS

General Practice Dentistry in Mira Loma, CA · enumerated 2008.

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

National Provider Identifier

1245497288

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Registry record

Entity type Individual (Type 1)

Name Dr. Elizabeth E Williamson

Credential DDS

Sex Female

Practice address 12571 Limonite Avenue, Suite 230, Mira Loma, CA, 91752

Phone (951) 360-3444

Fax (951) 360-3784

Enumeration date May 19, 2008

Last updated in NPPES May 19, 2008

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 55914 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Elizabeth Williamson?

The National Provider Identifier (NPI) for Elizabeth Williamson is 1245497288, a Type 1 (individual) record in the CMS NPPES registry.

Where does Elizabeth Williamson practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-19.