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Pacific Retina

Ophthalmology Physician in Walnut Creek, CA · enumerated 2016 · authorized official Denise Wittmer, Director.

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

National Provider Identifier

1306293964

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Registry record

Entity type Organization (Type 2)
Legal business name Pacific Retina
Practice address 122 La Casa Via, #223, Walnut Creek, CA, 94598
Phone (925) 943-6800
Fax (925) 943-6880
Enumeration date May 24, 2016
Last updated in NPPES May 24, 2016

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Denise Wittmer
Title Director
Phone (925) 943-6800

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 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.
What type of organization is Pacific Retina?
Pacific Retina is registered in NPPES as a Ophthalmology Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-24.