Elizabeth O'Brien, N.P.

Primary specialty

Obstetrics & Gynecology Nurse PractitionerTaxonomy code 363LX0001X

License

RN494828 Issued in CA

Practice address

16950 Via Tazon
San Diego, CA 92127-1607

Phone

(858) 499-2702

NPI assigned

Aug 31, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Nurse Practitioner

State licenses

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

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1942311055",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "16950 VIA TAZON",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921271607",
            "telephone_number": "858-499-2702"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "16950 VIA TAZON",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921271607",
            "telephone_number": "858-499-2702"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "ELIZABETH",
        "name_prefix": "Ms.",
        "credential": "N.P.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-31",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "RN494828",
            "primary": false
        },
        {
            "code": "363LX0001X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Obstetrics & Gynecology",
            "state": "CA",
            "license": "RN494828",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Bridget Ann O'Brien, ANP
• Cassidy O'Brien
• Christopher Flint O'Brien, M.D.
• Christopher Mark O'Brien, MD
• Deanna O'Brien
• Genevieve Erin O'Brien, AMFT
• Isabel Kathryn O'Brien, MS
• Jared Michael O'Brien
• Jessika O'Brien, PAC, MMS
• Kiendra O'Brien

• Obstetrics & Gynecology Nurse Practitioner in San Diego, CA
• Providers in San Diego, CA by specialty
• Obstetrics & Gynecology Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.