NPIMap

Organization Active NPI

Retina Institute of California Medical Group, a California Medical Par

Doing business as Acuity Eye Group

  • Ophthalmology Physician
  • Los Angeles, CA
National Provider Identifier
1306301304
Registry record updated Apr 21, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ophthalmology PhysicianTaxonomy code 207W00000X
Legal business name
RETINA INSTITUTE OF CALIFORNIA MEDICAL GROUP, A CALIFORNIA MEDICAL PAR
Doing business as
Acuity Eye Group
Practice address
1127 Wilshire Blvd Ste 504
Los Angeles, CA 90017-3906
Phone
(213) 413-7301
Fax
(213) 413-7303
NPI assigned
Feb 4, 2019
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 21, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Dr. Tom S Chang, MD
Title
Managing Partner
Phone
(800) 898-2020

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
OptometristGroup: 193200000X MULTI-SPECIALTY GROUP 152W00000X
Ophthalmology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207W00000X Primary

Addresses

Primary practice location

1127 Wilshire Blvd Ste 504
Los Angeles, CA 90017-3906

Mailing address

100 E California Blvd
Pasadena, CA 91105-3205
Phone (951) 249-9225

Other identifiers 1

IdentifierTypeStateIssuer
1760541569MedicaidCA

Other names 1

  • Acuity Eye Group Doing business as

National Provider Directory

National Provider Directory
Tax ID family
Retina Institute California37 organizations share this tax ID, including this one

Other organizations with this tax ID 36

Organizations that report the same tax identification number in the National Provider Directory.

View all 36

Locations

1127 Wilshire Blvd
Ste 505
Los Angeles, CA 90017

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1549238400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1745193600000",
    "number": "1306301304",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 E CALIFORNIA BLVD",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911053205",
            "telephone_number": "951-249-9225"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1127 WILSHIRE BLVD STE 504",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900173906",
            "telephone_number": "213-413-7301",
            "fax_number": "213-413-7303"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "RETINA INSTITUTE OF CALIFORNIA MEDICAL GROUP, A CALIFORNIA MEDICAL PAR",
        "organizational_subpart": "NO",
        "enumeration_date": "2019-02-04",
        "last_updated": "2025-04-21",
        "certification_date": "2025-04-21",
        "status": "A",
        "authorized_official_last_name": "CHANG",
        "authorized_official_first_name": "TOM",
        "authorized_official_middle_name": "S",
        "authorized_official_title_or_position": "MANAGING PARTNER",
        "authorized_official_telephone_number": "800-898-2020",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Optometrist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207W00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Ophthalmology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1760541569",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Acuity Eye Group",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Los Angeles, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.