Individual provider Active NPI

Karen Marie Fields, PA-C

  • Physician Assistant
  • Anaheim, CA
National Provider Identifier
1972342855
Registry record updated Mar 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
Practice address
631 S Brookhurst St Ste 101
Anaheim, CA 92804-3563
Phone
(714) 991-5700
NPI assigned
May 21, 2024
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 12, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X Primary

Addresses

Primary practice location

631 S Brookhurst St Ste 101
Anaheim, CA 92804-3563

Mailing address

631 S Brookhurst St Ste 101
Anaheim, CA 92804-3563
Phone (714) 991-5700

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260318003560 CA Practitioner - Physician Assistant 9335665975 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Oneil Enterprises IncGroup PAC ID 9638506686, 16 clinicians

Practice addresses (Care Compare)

5424 Woodruff Ave
Lakewood, CA 90713-1533
Phone (562) 452-0038

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
64696CAMDDentist

Practice roles

OrganizationSpecialtyStatusNew patients
Oneil Enterprises Inc CurrentSince Jan 21, 2026 Accepting new patients

Locations

4139 Ball Rd
Cypress, CA 90630
Phone (657) 377-0740

5424 Woodruff Ave
Lakewood, CA 90713
Phone (562) 452-0038

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 and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1716249600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741737600000",
    "number": "1972342855",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "631 S BROOKHURST ST STE 101",
            "city": "ANAHEIM",
            "state": "CA",
            "postal_code": "928043563",
            "telephone_number": "714-991-5700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "631 S BROOKHURST ST STE 101",
            "city": "ANAHEIM",
            "state": "CA",
            "postal_code": "928043563",
            "telephone_number": "714-991-5700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FIELDS",
        "first_name": "KAREN",
        "middle_name": "MARIE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-05-21",
        "last_updated": "2025-03-12",
        "certification_date": "2025-03-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Anaheim, CA

Sources for this page

Verify at the official NPI Registry.