Catherine Chien, MD

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

A74698 Issued in CA

Practice address

1414 S Grand Ave
Ste 400
Los Angeles, CA 90015-3067

Phone

(213) 741-9727

Fax

(213) 741-0867

NPI assigned

Nov 4, 2005

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

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

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1131062400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1215928460",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1001 N MARTEL AVE",
            "city": "WEST HOLLYWOOD",
            "state": "CA",
            "postal_code": "900466611",
            "telephone_number": "323-436-5019",
            "fax_number": "323-436-5034"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1414 S GRAND AVE",
            "address_2": "STE 400",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900153067",
            "telephone_number": "213-741-9727",
            "fax_number": "213-741-0867"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHIEN",
        "first_name": "CATHERINE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-11-04",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "A74698",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A746980",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Daniel Nguyen Chiem, MD
• Roger Chiem, RPH
• Araceli Leonor Chieme
• Alan Chien
• Candace Chien, MD
• Daniel Chien, M.D.
• Gary W. Chien, M.D.
• Kristine Chien
• Lian Phay Chien, M.D.
• Ryan Howie Chien, PHARMD

• Infectious Disease Physician in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Infectious Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.