Individual provider Active NPI

Isabel B Koo, NP

  • Psychiatric/Mental Health Nurse Practitioner
  • Newport Beach, CA
National Provider Identifier
1770437451
Registry record updated Feb 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X
License
RN95266461 Issued in CA
Practice address
2382 SE Bristol St Ste B1
Newport Beach, CA 92660-0756
Phone
(949) 232-0301
NPI assigned
Feb 20, 2026
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 20, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X RN95266461 CA
Psychiatric/Mental Health Nurse Practitioner 363LP0808X RN95266461 CA Primary

Addresses

Primary practice location

2382 SE Bristol St Ste B1
Newport Beach, CA 92660-0756

Mailing address

2382 SE Bristol St Ste B1
Newport Beach, CA 92660-0756
Phone (949) 232-0301

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
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
RN95266461CAMDPsychiatric/Mental Health Nurse Practitioner

NPI Registry JSON

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

{
    "created_epoch": "1771545600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771545600000",
    "number": "1770437451",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2382 SE BRISTOL ST STE B1",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926600756",
            "telephone_number": "949-232-0301"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2382 SE BRISTOL ST STE B1",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926600756",
            "telephone_number": "949-232-0301"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOO",
        "first_name": "ISABEL",
        "middle_name": "B",
        "name_prefix": "Ms.",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-02-20",
        "last_updated": "2026-02-20",
        "certification_date": "2026-02-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "RN95266461",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "CA",
            "license": "RN95266461",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Newport Beach, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 20, 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.