Justin Tam Siu, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

A198786 Issued in CA

Practice address

1520 San Pablo St Ste 1300
Los Angeles, CA 90033-5312

Phone

(323) 442-5900

NPI assigned

Apr 13, 2023

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

Other, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1681344000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783555200000",
    "number": "1407542467",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5767 W CENTURY BLVD STE 400",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900455631"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1520 SAN PABLO ST STE 1300",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900335312",
            "telephone_number": "323-442-5900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1245 16th St Ste 309",
            "address_purpose": "LOCATION",
            "city": "Santa Monica",
            "state": "CA",
            "postal_code": "904041239",
            "country_code": "US",
            "telephone_number": "310-319-4377",
            "fax_number": "310-319-4425",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIU",
        "first_name": "JUSTIN",
        "middle_name": "TAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-04-13",
        "last_updated": "2026-07-09",
        "certification_date": "2026-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A198786",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Wesley Yuk Yan Situ
• Sarina Sity
• Jack Sitzman
• Jeremy Siu
• Jessica Guadalupe Siu
• Katie Siu, DPT
• Laurie Chang Siu, DDS
• Wayne Siu, PHARM.D.
• Priya Siva, OTR/L, ATP
• Archana Sivanandam, MD

• Family Medicine Physician in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Family Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 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.