Individual provider Active NPI

Brad Keola Katsuichi Nakamura

  • Gynecologic Oncology Physician
  • Irvine, CA
National Provider Identifier
1306201504
Registry record updated Nov 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gynecologic Oncology PhysicianTaxonomy code 207VX0201X
License
A186602 Issued in CA
Practice address
1000 Fivepoint
Irvine, CA 92618-2377
Phone
(949) 671-8000
NPI assigned
Dec 15, 2015
Last updated
Nov 2, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gynecologic Oncology Physician 207VX0201X A186602 CA Primary

Addresses

Primary practice location

1000 Fivepoint
Irvine, CA 92618-2377

Mailing address

PO Box 512185
Los Angeles, CA 90051-0185

Other practice location 1

2151 N Harbor Blvd Ste 3100
Fullerton, CA 92835-3825
Phone (800) 826-4673

Other practice location 2

2100 Main St Ste 300
Huntington Beach, CA 92648-2489
Phone (714) 252-9415

Other practice location 3

1601 Avocado Ave
Newport Beach, CA 92660-7798
Phone (949) 763-2204

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address direct@cityofhope.direct-ci.com Direct CITY OF HOPE MEDICAL FOUNDATION

Medicare participation

Medicare enrollment files
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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260430003111 CA Practitioner - Obstetrics/Gynecology 8224362314 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Other, 2019
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

1000 Fivepoint
Irvine, CA 92618-2377

1500 Duarte Rd
Duarte, CA 91010-3012

PO Box
Los Angeles, CA 90051

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Interoperability endpoints

  • Direct secure messaging: bclay148990@cityofhope.direct-ci.com

Organizations & group practices 1

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

NPI Registry JSON

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

{
    "created_epoch": "1450137600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1793577600000",
    "number": "1306201504",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 512185",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900510185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 FIVEPOINT",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926182377",
            "telephone_number": "949-671-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2151 N Harbor Blvd Ste 3100",
            "address_purpose": "LOCATION",
            "city": "Fullerton",
            "state": "CA",
            "postal_code": "928353825",
            "country_code": "US",
            "telephone_number": "800-826-4673",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2100 Main St Ste 300",
            "address_purpose": "LOCATION",
            "city": "Huntington Beach",
            "state": "CA",
            "postal_code": "926482489",
            "country_code": "US",
            "telephone_number": "714-252-9415",
            "fax_number": "714-963-8407",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1601 Avocado Ave",
            "address_purpose": "LOCATION",
            "city": "Newport Beach",
            "state": "CA",
            "postal_code": "926607798",
            "country_code": "US",
            "telephone_number": "949-763-2204",
            "fax_number": "949-536-8036",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NAKAMURA",
        "first_name": "BRAD",
        "middle_name": "KEOLA KATSUICHI",
        "name_prefix": "Dr.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-12-15",
        "last_updated": "2026-11-02",
        "certification_date": "2026-11-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VX0201X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecologic Oncology",
            "state": "CA",
            "license": "A186602",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "direct@cityofhope.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1000 Fivepoint",
            "city": "Irvine",
            "state": "CA",
            "country_code": "US",
            "postal_code": "926182377",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Irvine, CA

Sources for this page

Verify at the official NPI Registry.