Individual provider Active NPI

Oscar Mercado

  • Physician Assistant
  • Apple Valley, CA
National Provider Identifier
1245196591
Registry record updated Apr 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
Practice address
18002 Wika Rd
Apple Valley, CA 92307-2125
Phone
(760) 946-9600
NPI assigned
Dec 30, 2025
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 25, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X CA Primary

Addresses

Primary practice location

18002 Wika Rd
Apple Valley, CA 92307-2125

Mailing address

18002 Wika Rd.
Apple Valley, CA 92307
Phone (760) 946-9600

Other practice location 1

10565 Civic Center Dr
Rancho Cucamonga, CA 91730-3853
Phone (909) 527-3585

Other practice location 2

14114 Business Center Dr
Moreno Valley, CA 92553-9107
Phone (951) 697-5777

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

NPI Registry JSON

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

{
    "created_epoch": "1767052800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777075200000",
    "number": "1245196591",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "18002 WIKA RD.",
            "city": "APPLE VALLEY",
            "state": "CA",
            "postal_code": "92307",
            "telephone_number": "760-946-9600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18002 WIKA RD",
            "city": "APPLE VALLEY",
            "state": "CA",
            "postal_code": "923072125",
            "telephone_number": "760-946-9600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10565 Civic Center Dr",
            "address_purpose": "LOCATION",
            "city": "Rancho Cucamonga",
            "state": "CA",
            "postal_code": "917303853",
            "country_code": "US",
            "telephone_number": "909-527-3585",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "14114 Business Center Dr",
            "address_purpose": "LOCATION",
            "city": "Moreno Valley",
            "state": "CA",
            "postal_code": "925539107",
            "country_code": "US",
            "telephone_number": "951-697-5777",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MERCADO",
        "first_name": "OSCAR",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-12-30",
        "last_updated": "2026-04-25",
        "certification_date": "2026-04-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Apple Valley, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 25, 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.