Junn Cho, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

35638 Issued in CA

Practice address

1225 N McDowell Blvd
Petaluma, CA 94954-1112

Phone

(707) 559-7500

NPI assigned

Aug 31, 2022

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

Interoperability endpoints

• Direct secure messaging: jcho817319@direct.ochin.org

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

{
    "created_epoch": "1661904000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754438400000",
    "number": "1609596535",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1179 N MCDOWELL BLVD",
            "city": "PETALUMA",
            "state": "CA",
            "postal_code": "949546559",
            "telephone_number": "707-559-7500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1225 N MCDOWELL BLVD",
            "city": "PETALUMA",
            "state": "CA",
            "postal_code": "949541112",
            "telephone_number": "707-559-7500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "305 W 44th St",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100365407",
            "country_code": "US",
            "telephone_number": "212-586-6400",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1179 N McDowell Blvd",
            "address_purpose": "LOCATION",
            "city": "Petaluma",
            "state": "CA",
            "postal_code": "949546559",
            "country_code": "US",
            "telephone_number": "707-559-7500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHO",
        "first_name": "JUNN",
        "credential": "OD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-08-31",
        "last_updated": "2025-08-06",
        "certification_date": "2025-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Optometrist",
            "state": "NY",
            "license": "009576",
            "primary": false
        },
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "CA",
            "license": "35638",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Carlin Li-an CHI, M.D.
• Ninette Fonseca Chicca, NINETTE CHICCA, SLP
• Child Therapy Institute of Marin
• Claudette Chin, RN
• Andrew K Chinnock, FNP
• Jonathan Y Choe, M.D.
• Elaine Sukhi Choi
• Julie Chojnacki
• Ralph David Christensen, DENTIST DDS
• Karen Christianson

• Optometrist in Petaluma, CA
• Providers in Petaluma, CA by specialty
• Optometrist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.