Chasie Mariko Oandasan

Primary specialty

Behavior TechnicianTaxonomy code 106S00000X

Practice address

31 Rancho Camino Dr
Pomona, CA 91766-7030

Phone

(909) 618-0974

NPI assigned

Feb 7, 2026

Sex

Female

Sole proprietor

Yes

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

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1770422400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770422400000",
    "number": "1922959634",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1722 ROUNDTREE CIR",
            "city": "DIAMOND BAR",
            "state": "CA",
            "postal_code": "917652751"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "31 RANCHO CAMINO DR",
            "city": "POMONA",
            "state": "CA",
            "postal_code": "917667030",
            "telephone_number": "909-618-0974"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OANDASAN",
        "first_name": "CHASIE",
        "middle_name": "MARIKO",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-02-07",
        "last_updated": "2026-02-07",
        "certification_date": "2026-02-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106S00000X",
            "taxonomy_group": "",
            "desc": "Behavior Technician",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Connor O'Malley
• Brian Frederick O'Neill, D.P.M.
• Patrick Dermot James O'Sullivan
• Oak Tree Dermatology
• John L. Oakley, M.D.
• John-Paul Obae, RN
• Nicklas Hans Oberg
• Alex Obiefuna
• Reynaldo C Obrero, P.A.-C
• Jacqueline Ocampo-Caton

• All providers in Pomona, CA
• Behavior Technician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 7, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.