Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cassandra Jean Thompson, O.D.

Optometrist in San Diego, CA · enumerated 2009.

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

National Provider Identifier

1225362908

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Registry record

Entity type Individual (Type 1)

Name Ms. Cassandra Jean Thompson

Credential O.D.

Sex Female

Practice address 2655 Camino Del Rio N, San Diego, CA, 92108

Phone (619) 782-9481

Enumeration date Sep 28, 2009

Last updated in NPPES Jan 18, 2024

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 27OA00622400 (NJ) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 13901 (CA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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 specialty is Cassandra Thompson?

Cassandra Thompson is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-18.