Retina Institute of California Medical Group, a California Medical Par

Public-record details

Address

1640 Newport Blvd Ste 220, Costa Mesa, CA 92627

Phone

(949) 876-5046

Listed under

Ophthalmology practices, Retina (by name), Medicare-enrolled groups (CMS)

NPI

1134588932

NPI status

Active in the NPPES registry

Provider type

Organization (practice, clinic or company)

Registered specialty (self-reported taxonomy)

Ophthalmology (207W00000X)

License number on NPI record

A69909 (CA)

Authorized official

Tom Chang, Founder/owner

NPI first issued

Feb 22, 2016

Years since NPI first issued

10 years (since 2016)

License state on NPI record

CA

NPI record last updated

Apr 6, 2022

Medicare group enrollment (CMS)

Enrolled: listed in CMS Doctors & Clinicians as Retina Institute of California Medical Group, a California Medical Par

Clinicians in the Medicare group (all specialties, CMS)

77

Optometrists and ophthalmologists in the group at this ZIP (CMS)

4

Group Medicare assignment (CMS)

Accepts the Medicare-approved amount as payment in full

NPI 1134588932 is active in the federal NPPES registry (CMS) with Ophthalmology as its self-reported primary taxonomy; license A69909 (CA) is listed on the record. CMS Doctors & Clinicians lists a Medicare-enrolled group with this name at this ZIP. Source: NPPES NPI Registry (CMS) (record). Data as of 2026-10-16.

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What these registry facts mean

The NPI (National Provider Identifier) is the federal ID every HIPAA-covered provider uses to bill insurance. This NPI belongs to an organization, so it may cover several clinicians at this location. The specialty is the taxonomy the provider chose when registering; NPPES does not check it. A license number here is what the provider entered — confirm it with the state board before you rely on it. A registered specialty is not board certification. Ophthalmologists are physicians (MD or DO) who diagnose and treat eye disease and perform eye surgery. Verify a surgeon's license with the state medical board and board certification with the American Board of Ophthalmology.

View NPI 1134588932 in the official registry ↗