NPIMap

Individual provider Active NPI

Andrew C Ko, M.D.

  • Gastroenterology Physician
  • Yorba Linda, CA
National Provider Identifier
1437170990
Registry record updated Jun 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
G61260 Issued in CA
Practice address
16671 East Yorba Linda Blvd Ste 210
Yorba Linda, CA 92886
Phone
(714) 996-3700
Fax
(714) 985-6480
NPI assigned
Jul 21, 2006
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X G61260 CA Primary

Addresses

Primary practice location

16671 East Yorba Linda Blvd Ste 210
Yorba Linda, CA 92886

Mailing address

16671 East Yorba Linda Blvd Ste 210
Yorba Linda, CA 92886-2025
Phone (714) 996-3700

Other identifiers 1

IdentifierTypeStateIssuer
00G612601MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20041005001263 CA Practitioner - GastroenterologyPractitioner - Internal Medicine 7719946771 Reassigns benefits to 2 organizations
Practice locations: Huntington Beach, CA; Laguna Hills, CA

Care Compare profile

Medicare Care Compare
Specialty
GastroenterologyAlso: Internal Medicine
Education
R Franklin University of Med & Sci/Chicago Medical School, 1986
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
UC RegentsGroup PAC ID 7416869516, 316 clinicians

Practice addresses (Care Compare)

101 The City Dr S
Orange, CA 92868-3201
Phone (714) 456-7002

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy27
Upper gastrointestinal (GI) endoscopy for acid reflux24

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
61260CAMDGeneral Practice Dentistry
G61260CAMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Elham Elle Farajian, DPM, Professional Corporation CurrentSince Feb 1, 2022 Accepting new patients
UC Regents CurrentSince Jul 29, 2025 Accepting new patients
UC Regents Gastroenterology CurrentSince Jul 29, 2025 Accepting new patients
San Jose Gastroenterology, Inc. Gastroenterology CurrentSince Mar 23, 2018 Accepting new patients
UC Regents Current Accepting new patients
University of California Irvine Past Accepting new patients
Saddleback Memorial Medical Center Past Accepting new patients
Mission Hospital Regional Medical Center Past Accepting new patients
UC Regents Past Accepting new patients

Locations

17822 Beach Blvd
Ste 301
Huntington Beach, CA 92647
Phone (714) 545-7311

101 The City Dr S
Orange, CA 92868
Phone (714) 456-6054

1301 N Rose Dr
Ste 200
Placentia, CA 92870

2331 Montpelier Dr
Ste B
San Jose, CA 95116
Phone (408) 347-9001

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: andrew.ko.1@30912.direct.athenahealth.com

Organizations & group practices 9

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.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1153440000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780358400000",
    "number": "1437170990",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "16671 EAST YORBA LINDA BLVD STE 210",
            "city": "YORBA LINDA",
            "state": "CA",
            "postal_code": "928862025",
            "telephone_number": "714-996-3700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "16671 EAST YORBA LINDA BLVD STE 210",
            "city": "YORBA LINDA",
            "state": "CA",
            "postal_code": "92886",
            "telephone_number": "714-996-3700",
            "fax_number": "714-985-6480"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KO",
        "first_name": "ANDREW",
        "middle_name": "C",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-21",
        "last_updated": "2026-06-02",
        "certification_date": "2026-06-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "G61260",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G612601",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Yorba Linda, CA

Sources for this page

Verify at the official NPI Registry.