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Mendelson & Mark Optometric Corporation

Optometrist in Sunnyvale, CA · enumerated 2021 · authorized official Lisa Beem, Practice Administrator.

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

National Provider Identifier

1942960661

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Registry record

Entity type Organization (Type 2)
Legal business name Mendelson & Mark Optometric Corporation
Practice address 1010 W. Fremont Ave, Suite 200, Sunnyvale, CA, 94087
Phone (408) 739-6200
Fax (408) 739-2439
Enumeration date Dec 21, 2021
Last updated in NPPES Oct 20, 2022

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary
152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers Secondary

Authorized official

Name Lisa Beem
Title Practice Administrator
Phone (408) 739-6200

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

What type of organization is Mendelson & Mark Optometric Corporation?
Mendelson & Mark Optometric Corporation is registered in NPPES as a Optometrist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-20.