Marcus Christopher Liu

Primary specialty

Behavior TechnicianTaxonomy code 106S00000X

Practice address

1820 W Orangewood Ave Ste 110
Orange, CA 92868-5056

Phone

(714) 696-2862

Fax

(714) 242-9308

NPI assigned

Aug 31, 2026

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

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1788134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788134400000",
    "number": "1629986641",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1820 W ORANGEWOOD AVE STE 110",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928685056",
            "telephone_number": "714-696-2862",
            "fax_number": "714-242-9308"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1820 W ORANGEWOOD AVE STE 110",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928685056",
            "telephone_number": "714-696-2862",
            "fax_number": "714-242-9308"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LIU",
        "first_name": "MARCUS",
        "middle_name": "CHRISTOPHER",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-08-31",
        "last_updated": "2026-08-31",
        "certification_date": "2026-08-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106S00000X",
            "taxonomy_group": "",
            "desc": "Behavior Technician",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hsing-Yi Liu
• Isaac Liu
• Jeffrey Liu, PHARMD
• Jessica S Liu, MD
• Jingying Liu
• Marisa Liu, M.D.
• Ming Zhao Liu, MD
• Paul H Liu, MD
• Ruby Liu
• Sandy Liu, M.D.

• Behavior Technician in Orange, CA
• Providers in Orange, CA by specialty
• Behavior Technician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 31, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.