Justine Ko, M.D., M.P.H.

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

A177470 Issued in CA

Practice address

1500 Duarte Rd
Duarte, CA 91010-3012

Phone

(800) 826-4673

NPI assigned

Mar 18, 2019

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Electronic endpoints 1

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Pulmonary DiseaseAlso: Critical Care (Intensivists)

Education

Other, 2019

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Interoperability endpoints

• Direct secure messaging: justine.ko.1@31788.direct.athenahealth.com

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

{
    "created_epoch": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788998400000",
    "number": "1396204517",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1200 N STATE STREET",
            "address_2": "CLINIC TOWER, SUITE A7D",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900331029"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 DUARTE RD",
            "city": "DUARTE",
            "state": "CA",
            "postal_code": "910103012",
            "telephone_number": "800-826-4673"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KO",
        "first_name": "JUSTINE",
        "name_prefix": "Dr.",
        "credential": "M.D., M.P.H.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-18",
        "last_updated": "2026-09-10",
        "certification_date": "2026-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "CA",
            "license": "A177470",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CA",
            "license": "A177470",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A177470",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "direct@cityofhope.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1500 Duarte Rd",
            "city": "Duarte",
            "state": "CA",
            "country_code": "US",
            "postal_code": "910103012",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Lucia Jimenez Kinsey, MSW, LCSW
• Yitian Timothy Kiong, M.D.
• Samer W. Kirmiz, MD
• Kk0719 LLC
• Philip Joseph Klain, CRNA
• Marianna Koczywas, MD
• Haig John Kojian, PH.D.
• Cecile K. Kokozian, NP
• Vaijayanti S Koldhekar, MD
• Jessie Laina Koljonen, MD

• Pulmonary Disease Physician in Duarte, CA
• Providers in Duarte, CA by specialty
• Pulmonary Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 2026; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.