Alan Masaaki Ooka, APRN, BC, P-MHNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

RN 562338 Issued in CA

Practice address

23521 Paseo de Valencia
Suite 206a
Laguna Hills, CA 92653-3107

Phone

(949) 768-6845

Fax

(949) 768-5124

NPI assigned

Jul 5, 2005

Sex

Male

Sole proprietor

No

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)

Enrolled

State licenses

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

{
    "created_epoch": "1120521600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1114924230",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "41 GLENALMOND LN",
            "city": "LADERA RANCH",
            "state": "CA",
            "postal_code": "926940910",
            "telephone_number": "310-621-7359"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23521 PASEO DE VALENCIA",
            "address_2": "SUITE 206A",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926533107",
            "telephone_number": "949-768-6845",
            "fax_number": "949-768-5124"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OOKA",
        "first_name": "ALAN",
        "middle_name": "MASAAKI",
        "name_prefix": "Mr.",
        "credential": "APRN, BC, P-MHNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-05",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "CA",
            "license": "RN 562338",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Psychiatric/Mental Health Nurse Practitioner in Laguna Hills, CA
• Providers in Laguna Hills, CA by specialty
• Psychiatric/Mental Health Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.