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Cynthia S. Chiu, M.D., F.A.C.S., Inc.

Ophthalmology Physician in Oakland, CA · enumerated 2016 · authorized official Cynthia Chiu, Owner.

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

National Provider Identifier

1912365115

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Registry record

Entity type Organization (Type 2)
Legal business name Cynthia S. Chiu, M.D., F.A.C.S., Inc.
Practice address 491 30th St, Suite 201, Oakland, CA, 94609
Phone (510) 836-2122
Fax (510) 836-3773
Enumeration date Feb 2, 2016
Last updated in NPPES Feb 2, 2016

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License A96867 (CA) Primary

Authorized official

Name Cynthia Chiu
Title Owner
Phone (510) 836-2122

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 Cynthia S. Chiu, M.D., F.A.C.S., Inc.?
Cynthia S. Chiu, M.D., F.A.C.S., Inc. is registered in NPPES as a Ophthalmology Physician (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 2016-02-02.