Oswaldo Castillo

Primary specialty

Licensed Vocational NurseTaxonomy code 164X00000X

License

252307 Issued in CA

Practice address

15217 San Bernardino Ave
Fontana, CA 92335-5327

Phone

(310) 916-8343

NPI assigned

Apr 27, 2026

Last updated

Apr 27, 2026By the provider in NPPES

Sex

Male

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

State licenses

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

{
    "created_epoch": "1777248000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777248000000",
    "number": "1538005087",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12971 QUAPAW RD",
            "city": "APPLE VALLEY",
            "state": "CA",
            "postal_code": "923084422",
            "telephone_number": "310-916-8343"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15217 SAN BERNARDINO AVE",
            "city": "FONTANA",
            "state": "CA",
            "postal_code": "923355327",
            "telephone_number": "310-916-8343"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASTILLO",
        "first_name": "OSWALDO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-04-27",
        "last_updated": "2026-04-27",
        "certification_date": "2026-04-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "164X00000X",
            "taxonomy_group": "",
            "desc": "Licensed Vocational Nurse",
            "state": "CA",
            "license": "252307",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mario Javier Castellanos Jr., DDS
• Ernest Castigadorgayomali, FNP-C
• Ashley Vanessa Castillo, M.S., CCC-SLP
• Hannah Nicole Castillo, PT
• Ismael Castillo, PHARM.D.
• Raynard A Castillo
• Chris Elmor Caston, LCSW
• Christine Hanna Castro, PHARM.D., BCPS
• Cipriano Castro, PHYSICAL THERAPIST
• Cathy Nguyen, O.D., a Professional Optometric Corporation

• Licensed Vocational Nurse in Fontana, CA
• Providers in Fontana, CA by specialty
• Licensed Vocational Nurse in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 27, 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.