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Retina Institute of California Medical Group, A California Medical Par

Optometrist in San Pedro, CA · enumerated 2019 · authorized official Tom Chang, President.

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

National Provider Identifier

1720644081

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Registry record

Entity type Organization (Type 2)
Legal business name Retina Institute of California Medical Group, A California Medical Par
Practice address 1360 W 6th St Ste 165, San Pedro, CA, 90732
Phone (800) 898-2020
Fax (949) 538-3938
Enumeration date May 13, 2019
Last updated in NPPES Mar 30, 2021

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Tom Chang
Title President
Phone (800) 898-2020

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

Who is the authorized official for Retina Institute of California Medical Group, A California Medical Par?
NPPES lists Tom Chang (President) as the authorized official for this organization.
What is the NPI number for Retina Institute of California Medical Group, A California Medical Par?
The NPI for Retina Institute of California Medical Group, A California Medical Par is 1720644081, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-30.