Katherine Ko, NP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

95009181 Issued in CA

Practice address

400 N Pepper Ave
Colton, CA 92324-1819

Phone

(909) 580-1000

NPI assigned

Feb 8, 2019

Last updated

Oct 10, 2026By the provider in NPPES

Sex

Female

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

Credentials

Nurse Practitioner

Practice roles

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.

• A-One Medical Group, Inc. a Professional Corporation

  • Family Medicine Physician
  • Diamond Bar, CA
  • NPI 1306006655
  NPD (past)
• Goldome Healthcare Inc.

  • Primary Care Clinic/Center
  • Pomona, CA
  • NPI 1295154672
  NPD (past)

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

{
    "created_epoch": "1549584000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1791590400000",
    "number": "1679038103",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "21233 CORRAL CT",
            "city": "WALNUT",
            "state": "CA",
            "postal_code": "917892031",
            "telephone_number": "909-569-4954"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 N PEPPER AVE",
            "city": "COLTON",
            "state": "CA",
            "postal_code": "923241819",
            "telephone_number": "909-580-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KO",
        "first_name": "KATHERINE",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-02-08",
        "last_updated": "2026-10-10",
        "certification_date": "2026-10-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "95009181",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Dorene Pasillas Kloby
• KNB Pharmacy Inc (Cooley Health Pharmacy)
• Christie Knox, D.O.
• Gregory L Knutzen, NP
• Ellen C Ko, M.D.
• Shawn Shu Wern Koh, M.D.
• Carole Gail Kohen-Diniak, D O
• Kamilah Koleszar
• Robert Sexton Kollen, M.D
• Chuck S Kon, D.D.S.

• Nurse Practitioner in Colton, CA
• Providers in Colton, CA by specialty
• Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 10, 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.