Zachary James O'Nell

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

95036533 Issued in CA

Practice address

41880 Kalmia St
Murrieta, CA 92562-8831

Phone

(951) 696-7587

NPI assigned

Aug 8, 2025

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

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Southern California Urgent Care NetworkGroup PAC ID 7315284130, 15 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Southern California Urgent Care Network

  • Urgent Care Clinic/Center
  • Rosamond, CA
  • NPI 1861975500
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1754611200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754611200000",
    "number": "1972488872",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "30929 DOUGLAS CREST CIR",
            "city": "MENIFEE",
            "state": "CA",
            "postal_code": "925842957",
            "telephone_number": "909-973-0942"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "41880 KALMIA ST",
            "city": "MURRIETA",
            "state": "CA",
            "postal_code": "925628831",
            "telephone_number": "951-696-7587"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'NELL",
        "first_name": "ZACHARY",
        "middle_name": "JAMES",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-08-08",
        "last_updated": "2025-08-08",
        "certification_date": "2025-08-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "95036533",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Christina O'Brien, N.P.
• Peter G. O'Brien, FNP
• Oak Grove Institute Foundation, Inc
• Oaks Surgery Center LP
• Oasis Training Facility
• Oasis Transport LLC
• Glaiza Agnes Obias

• Family Nurse Practitioner in Murrieta, CA
• Providers in Murrieta, CA by specialty
• Family Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 8, 2025; 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.