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

Eillen Carolina Sosa, SLD

Optician in Oakland, CA · enumerated 2012.

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

National Provider Identifier

1336492685

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Registry record

Entity type Individual (Type 1)

Name Eillen Carolina Sosa

Credential SLD

Sex Female

Practice address Oakland, CA, 94601

Phone (510) 731-6976

Fax (510) 698-8744

Enumeration date Oct 24, 2012

Last updated in NPPES Oct 24, 2012

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

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License D7662 (CA) Primary

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

Is NPI 1336492685 active?

Yes, as of the latest NPPES snapshot, NPI 1336492685 is active (record last updated 2012-10-24).

How do I verify Eillen Sosa's NPI record?

Cross-check NPI 1336492685 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-24.